Commit graph

381 commits

Author SHA1 Message Date
Linus Torvalds af995383eb SCSI misc on 20201023
The set of core changes here is Christoph's submission path cleanups.
 These introduced a couple of regressions when first proposed so they
 got held over from the initial merge window pull request to give more
 testing time, which they've now had and Syzbot has confirmed the
 regression it detected is fixed.  The other main changes are two
 driver updates (arcmsr, pm80xx) and assorted minor clean ups.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "The set of core changes here is Christoph's submission path cleanups.

  These introduced a couple of regressions when first proposed so they
  got held over from the initial merge window pull request to give more
  testing time, which they've now had and Syzbot has confirmed the
  regression it detected is fixed.

  The other main changes are two driver updates (arcmsr, pm80xx) and
  assorted minor clean ups"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: qla2xxx: Fix return of uninitialized value in rval
  scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands
  scsi: sr: Initialize ->cmd_len
  scsi: arcmsr: Update driver version to v1.50.00.02-20200819
  scsi: arcmsr: Add support for ARC-1886 series RAID controllers
  scsi: arcmsr: Fix device hot-plug monitoring timer stop
  scsi: arcmsr: Remove unnecessary syntax
  scsi: pm80xx: Driver version update
  scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
  scsi: pm80xx: Remove DMA memory allocation for ccb and device structures
  scsi: pm80xx: Increase number of supported queues
  scsi: sym53c8xx_2: Fix sizeof() mismatch
  scsi: isci: Fix a typo in a comment
  scsi: qla4xxx: Fix inconsistent format argument type
  scsi: myrb: Fix inconsistent format argument types
  scsi: myrb: Remove redundant assignment to variable timeout
  scsi: bfa: Fix error return in bfad_pci_init()
  scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup()
  scsi: snic: Simplify the return expression of svnic_cq_alloc()
  scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc()
  ...
2020-10-23 16:19:02 -07:00
Jing Xiangfeng f0f6c3a4fc scsi: bfa: Fix error return in bfad_pci_init()
Fix to return error code -ENODEV from the error handling case instead of 0.

Link: https://lore.kernel.org/r/20200925062423.161504-1-jingxiangfeng@huawei.com
Fixes: 11ea382414 ("scsi: bfa: fix calls to dma_set_mask_and_coherent()")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07 23:50:04 -04:00
Gustavo A. R. Silva df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Lee Jones 64332c13d0 scsi: bfa: Ensure a blank line precedes next function/header
Fixes the following checkpatch warning:

 CHECK: Please use a blank line after function/struct/union/enum declarations
 #129: FILE: drivers/scsi/bfa/bfa_ioc.c:6913:
  }
 +/*

Link: https://lore.kernel.org/r/20200723122446.1329773-39-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:33:06 -04:00
Lee Jones 20e73cb1d0 scsi: bfa: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the source file and no descriptions
are provided.

Also demote standard comment.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_svc.c:3847: warning: Function parameter or member 'bfa' not described in 'bfa_fcport_get_cfg_topology'

Link: https://lore.kernel.org/r/20200723122446.1329773-36-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:33:04 -04:00
Lee Jones 310531ffc3 scsi: bfa: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the source file and no
descriptions are provided.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_core.c:1245: warning: Function parameter or member 'bfa' not described in 'bfa_iocfc_qreg'
 drivers/scsi/bfa/bfa_core.c:1245: warning: Function parameter or member 'qreg' not described in 'bfa_iocfc_qreg'

Link: https://lore.kernel.org/r/20200723122446.1329773-35-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:33:04 -04:00
Lee Jones b1a187f261 scsi: bfa: Demote non-kerneldoc headers down to standard comment blocks
This is probably historical (Doxygen?).

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_ioc.c:6646: warning: Cannot understand  * @brief hardware error definition
 drivers/scsi/bfa/bfa_ioc.c:6661: warning: Cannot understand  * @brief flash command register data structure
 drivers/scsi/bfa/bfa_ioc.c:6685: warning: Cannot understand  * @brief flash device status register data structure
 drivers/scsi/bfa/bfa_ioc.c:6711: warning: Cannot understand  * @brief flash address register data structure
 drivers/scsi/bfa/bfa_ioc.c:6732: warning: Function parameter or member 'pci_bar' not described in 'bfa_flash_set_cmd'
 drivers/scsi/bfa/bfa_ioc.c:6732: warning: Function parameter or member 'wr_cnt' not described in 'bfa_flash_set_cmd'
 drivers/scsi/bfa/bfa_ioc.c:6732: warning: Function parameter or member 'rd_cnt' not described in 'bfa_flash_set_cmd'
 drivers/scsi/bfa/bfa_ioc.c:6732: warning: Function parameter or member 'ad_cnt' not described in 'bfa_flash_set_cmd'
 drivers/scsi/bfa/bfa_ioc.c:6732: warning: Function parameter or member 'op' not described in 'bfa_flash_set_cmd'
 drivers/scsi/bfa/bfa_ioc.c:6768: warning: Cannot understand  * @brief
 drivers/scsi/bfa/bfa_ioc.c:6807: warning: Cannot understand  * @brief
 drivers/scsi/bfa/bfa_ioc.c:6852: warning: Cannot understand  * @brief
 drivers/scsi/bfa/bfa_ioc.c:6898: warning: Cannot understand  * @brief
 drivers/scsi/bfa/bfa_ioc.c:6914: warning: Cannot understand  * @brief
 drivers/scsi/bfa/bfa_ioc.c:6940: warning: Cannot understand  * @brief

Link: https://lore.kernel.org/r/20200723122446.1329773-34-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:33:00 -04:00
Lee Jones e95fcb7792 scsi: bfa: Remove unused variable 'adisc'
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_fcs_rport.c: In function ‘bfa_fcs_rport_process_adisc’:
 drivers/scsi/bfa/bfa_fcs_rport.c:2243:21: warning: variable ‘adisc’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200723122446.1329773-28-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:08 -04:00
Lee Jones eaefa33014 scsi: bfa: Demote non-compliant kerneldoc headers to standard comments
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_ioc_ct.c:504: warning: Function parameter or member 'ioc' not described in 'bfa_ioc_set_ctx_hwif'
 drivers/scsi/bfa/bfa_ioc_ct.c:504: warning: Function parameter or member 'hwif' not described in 'bfa_ioc_set_ctx_hwif'
 drivers/scsi/bfa/bfa_ioc_ct.c:525: warning: Function parameter or member 'ioc' not described in 'bfa_ioc_set_ct_hwif'
 drivers/scsi/bfa/bfa_ioc_ct.c:540: warning: Function parameter or member 'ioc' not described in 'bfa_ioc_set_ct2_hwif'

Link: https://lore.kernel.org/r/20200723122446.1329773-26-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:07 -04:00
Lee Jones 00025fc7e6 scsi: bfa: Staticify non-external functions
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_ioc.c:5023:1: warning: no previous prototype for ‘bfa_diag_intr’ [-Wmissing-prototypes]
 5023 | bfa_diag_intr(void *diagarg, struct bfi_mbmsg_s *msg)
 | ^~~~~~~~~~~~~
 drivers/scsi/bfa/bfa_ioc.c:6966:1: warning: no previous prototype for ‘bfa_flash_sem_get’ [-Wmissing-prototypes]
 6966 | bfa_flash_sem_get(void __iomem *bar)
 | ^~~~~~~~~~~~~~~~~
 drivers/scsi/bfa/bfa_ioc.c:6979:1: warning: no previous prototype for ‘bfa_flash_sem_put’ [-Wmissing-prototypes]
 6979 | bfa_flash_sem_put(void __iomem *bar)
 | ^~~~~~~~~~~~~~~~~

Link: https://lore.kernel.org/r/20200723122446.1329773-24-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:06 -04:00
Lee Jones c7ccd038b7 scsi: bfa: Remove a few unused variables 'pgoff' and 't'
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_ioc.c: In function ‘bfa_iocpf_sm_fwcheck_entry’:
 drivers/scsi/bfa/bfa_ioc.c:704:27: warning: variable ‘pgoff’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/bfa/bfa_ioc.c: In function ‘bfa_ioc_fwver_get’:
 drivers/scsi/bfa/bfa_ioc.c:1443:13: warning: variable ‘pgoff’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/bfa/bfa_ioc.c: In function ‘bfa_ioc_fwsig_invalidate’:
 drivers/scsi/bfa/bfa_ioc.c:1665:13: warning: variable ‘pgoff’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/bfa/bfa_ioc.c: In function ‘bfa_ioc_download_fw’:
 drivers/scsi/bfa/bfa_ioc.c:1866:13: warning: variable ‘pgoff’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/bfa/bfa_ioc.c: In function ‘bfa_diag_memtest_done’:
 drivers/scsi/bfa/bfa_ioc.c:4766:13: warning: variable ‘pgoff’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/bfa/bfa_ioc.c: In function ‘bfa_flash_fifo_flush’:
 drivers/scsi/bfa/bfa_ioc.c:6787:6: warning: variable ‘t’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200723122446.1329773-21-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:04 -04:00
Lee Jones 7106de1d8a scsi: bfa: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the source file and no descriptions
are provided.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_fcpim.c:3829: warning: Function parameter or member 'bfa' not described in 'bfa_fcpim_get_throttle_cfg'
 drivers/scsi/bfa/bfa_fcpim.c:3829: warning: Function parameter or member 'drv_cfg_param' not described in 'bfa_fcpim_get_throttle_cfg'

Link: https://lore.kernel.org/r/20200723122446.1329773-11-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:31:58 -04:00
Lee Jones 70b4de0bb9 scsi: bfa: Remove set but unused variable 'rp'
This change subsequently makes 'rp_fcs' unused also.  Remove that too.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_fcpim.c: In function ‘bfa_fcpim_lunmask_delete’:
 drivers/scsi/bfa/bfa_fcpim.c:2338:22: warning: variable ‘rp’ set but not used [-Wunused-but-set-variable]
 2338 | struct bfa_rport_s *rp = NULL;
 | ^~

Link: https://lore.kernel.org/r/20200723122446.1329773-10-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:31:57 -04:00
Lee Jones 0aaaa04a7a scsi: bfa: Staticify local functions
These calls are not invoked externally.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfa_port.c:760:1: warning: no previous prototype for ‘bfa_cee_isr’ [-Wmissing-prototypes]
 760 | bfa_cee_isr(void *cbarg, struct bfi_mbmsg_s *m)
 | ^~~~~~~~~~~
 drivers/scsi/bfa/bfa_port.c:796:1: warning: no previous prototype for ‘bfa_cee_notify’ [-Wmissing-prototypes]
 796 | bfa_cee_notify(void *arg, enum bfa_ioc_event_e event)
 | ^~~~~~~~~~~~~~

Link: https://lore.kernel.org/r/20200723122446.1329773-8-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:31:56 -04:00
Lee Jones 3bbd8ef9f7 scsi: bfa: Staticify all local functions
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfad_bsg.c:19:1: warning: no previous prototype for ‘bfad_iocmd_ioc_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:42:1: warning: no previous prototype for ‘bfad_iocmd_ioc_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:150:1: warning: no previous prototype for ‘bfad_iocmd_ioc_get_fwstats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:180:1: warning: no previous prototype for ‘bfad_iocmd_ioc_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:198:1: warning: no previous prototype for ‘bfad_iocmd_ioc_set_name’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:212:1: warning: no previous prototype for ‘bfad_iocmd_iocfc_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:223:1: warning: no previous prototype for ‘bfad_iocmd_ioc_fw_sig_inv’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:235:1: warning: no previous prototype for ‘bfad_iocmd_iocfc_set_intr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:248:1: warning: no previous prototype for ‘bfad_iocmd_port_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:269:1: warning: no previous prototype for ‘bfad_iocmd_port_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:319:1: warning: no previous prototype for ‘bfad_iocmd_port_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:353:1: warning: no previous prototype for ‘bfad_iocmd_port_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:374:1: warning: no previous prototype for ‘bfad_iocmd_set_port_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:394:1: warning: no previous prototype for ‘bfad_iocmd_port_cfg_maxfrsize’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:408:1: warning: no previous prototype for ‘bfad_iocmd_port_cfg_bbcr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:431:1: warning: no previous prototype for ‘bfad_iocmd_port_get_bbcr_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:469:1: warning: no previous prototype for ‘bfad_iocmd_lport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:493:1: warning: no previous prototype for ‘bfad_iocmd_lport_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:527:1: warning: no previous prototype for ‘bfad_iocmd_lport_get_iostats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:552:1: warning: no previous prototype for ‘bfad_iocmd_lport_get_rports’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:594:1: warning: no previous prototype for ‘bfad_iocmd_rport_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:680:1: warning: no previous prototype for ‘bfad_iocmd_rport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:721:1: warning: no previous prototype for ‘bfad_iocmd_rport_clr_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:757:1: warning: no previous prototype for ‘bfad_iocmd_rport_set_speed’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:793:1: warning: no previous prototype for ‘bfad_iocmd_vport_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:816:1: warning: no previous prototype for ‘bfad_iocmd_vport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:844:1: warning: no previous prototype for ‘bfad_iocmd_vport_clr_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:911:1: warning: no previous prototype for ‘bfad_iocmd_qos_set_bw’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:924:1: warning: no previous prototype for ‘bfad_iocmd_ratelim’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:953:1: warning: no previous prototype for ‘bfad_iocmd_ratelim_speed’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:982:1: warning: no previous prototype for ‘bfad_iocmd_cfg_fcpim’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:995:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_get_modstats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1017:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_clr_modstats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1039:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_get_del_itn_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1164:1: warning: no previous prototype for ‘bfad_iocmd_fcport_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1177:1: warning: no previous prototype for ‘bfad_iocmd_fcport_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1190:1: warning: no previous prototype for ‘bfad_iocmd_ioc_get_pcifn_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1212:1: warning: no previous prototype for ‘bfad_iocmd_pcifn_create’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1235:1: warning: no previous prototype for ‘bfad_iocmd_pcifn_delete’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1257:1: warning: no previous prototype for ‘bfad_iocmd_pcifn_bw’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1281:1: warning: no previous prototype for ‘bfad_iocmd_adapter_cfg_mode’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1304:1: warning: no previous prototype for ‘bfad_iocmd_port_cfg_mode’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1328:1: warning: no previous prototype for ‘bfad_iocmd_ablk_optrom’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1354:1: warning: no previous prototype for ‘bfad_iocmd_faa_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1377:1: warning: no previous prototype for ‘bfad_iocmd_cee_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1413:1: warning: no previous prototype for ‘bfad_iocmd_cee_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1450:1: warning: no previous prototype for ‘bfad_iocmd_cee_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1464:1: warning: no previous prototype for ‘bfad_iocmd_sfp_media’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1486:1: warning: no previous prototype for ‘bfad_iocmd_sfp_speed’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1507:1: warning: no previous prototype for ‘bfad_iocmd_flash_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1528:1: warning: no previous prototype for ‘bfad_iocmd_flash_erase_part’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1548:1: warning: no previous prototype for ‘bfad_iocmd_flash_update_part’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1580:1: warning: no previous prototype for ‘bfad_iocmd_flash_read_part’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1612:1: warning: no previous prototype for ‘bfad_iocmd_diag_temp’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1634:1: warning: no previous prototype for ‘bfad_iocmd_diag_memtest’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1657:1: warning: no previous prototype for ‘bfad_iocmd_diag_loopback’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1680:1: warning: no previous prototype for ‘bfad_iocmd_diag_fwping’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1704:1: warning: no previous prototype for ‘bfad_iocmd_diag_queuetest’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1725:1: warning: no previous prototype for ‘bfad_iocmd_diag_sfp’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1748:1: warning: no previous prototype for ‘bfad_iocmd_diag_led’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1761:1: warning: no previous prototype for ‘bfad_iocmd_diag_beacon_lport’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1776:1: warning: no previous prototype for ‘bfad_iocmd_diag_lb_stat’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1791:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1813:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1833:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_start’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1858:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_show’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1873:1: warning: no previous prototype for ‘bfad_iocmd_phy_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1894:1: warning: no previous prototype for ‘bfad_iocmd_phy_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1915:1: warning: no previous prototype for ‘bfad_iocmd_phy_read’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1947:1: warning: no previous prototype for ‘bfad_iocmd_vhba_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1966:1: warning: no previous prototype for ‘bfad_iocmd_phy_update’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1996:1: warning: no previous prototype for ‘bfad_iocmd_porglog_get’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2016:1: warning: no previous prototype for ‘bfad_iocmd_debug_fw_core’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2050:1: warning: no previous prototype for ‘bfad_iocmd_debug_ctl’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2071:1: warning: no previous prototype for ‘bfad_iocmd_porglog_ctl’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2085:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_cfg_profile’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2129:1: warning: no previous prototype for ‘bfad_iocmd_fcport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2154:1: warning: no previous prototype for ‘bfad_iocmd_fcport_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2178:1: warning: no previous prototype for ‘bfad_iocmd_boot_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2200:1: warning: no previous prototype for ‘bfad_iocmd_boot_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2222:1: warning: no previous prototype for ‘bfad_iocmd_preboot_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2241:1: warning: no previous prototype for ‘bfad_iocmd_ethboot_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2264:1: warning: no previous prototype for ‘bfad_iocmd_ethboot_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2287:1: warning: no previous prototype for ‘bfad_iocmd_cfg_trunk’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2327:1: warning: no previous prototype for ‘bfad_iocmd_trunk_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2350:1: warning: no previous prototype for ‘bfad_iocmd_qos’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2378:1: warning: no previous prototype for ‘bfad_iocmd_qos_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2404:1: warning: no previous prototype for ‘bfad_iocmd_qos_get_vc_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2436:1: warning: no previous prototype for ‘bfad_iocmd_qos_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2468:1: warning: no previous prototype for ‘bfad_iocmd_qos_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2499:1: warning: no previous prototype for ‘bfad_iocmd_vf_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2522:1: warning: no previous prototype for ‘bfad_iocmd_vf_clr_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2559:1: warning: no previous prototype for ‘bfad_iocmd_lunmask’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2582:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_lunmask_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2596:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_cfg_lunmask’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2615:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_throttle_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2630:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_throttle_set’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2645:1: warning: no previous prototype for ‘bfad_iocmd_tfru_read’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2667:1: warning: no previous prototype for ‘bfad_iocmd_tfru_write’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2689:1: warning: no previous prototype for ‘bfad_iocmd_fruvpd_read’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2711:1: warning: no previous prototype for ‘bfad_iocmd_fruvpd_update’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2733:1: warning: no previous prototype for ‘bfad_iocmd_fruvpd_get_max_size’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3181:1: warning: no previous prototype for ‘bfad_fcxp_get_req_sgaddr_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3193:1: warning: no previous prototype for ‘bfad_fcxp_get_req_sglen_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3203:1: warning: no previous prototype for ‘bfad_fcxp_get_rsp_sgaddr_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3215:1: warning: no previous prototype for ‘bfad_fcxp_get_rsp_sglen_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3225:1: warning: no previous prototype for ‘bfad_send_fcpt_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3240:1: warning: no previous prototype for ‘bfad_fcxp_map_sg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3284:1: warning: no previous prototype for ‘bfad_fcxp_free_mem’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3302:1: warning: no previous prototype for ‘bfad_fcxp_bsg_send’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3342:1: warning: no previous prototype for ‘bfad_im_bsg_els_ct_request’ [-Wmissing-prototypes]

Link: https://lore.kernel.org/r/20200721164148.2617584-36-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:02 -04:00
Jason Yan 102026483d scsi: bfa: Make bfad_iocmd_ioc_get_stats() static
Fix the following sparse warning:

drivers/scsi/bfa/bfad_bsg.c:140:1: warning: symbol
'bfad_iocmd_ioc_get_stats' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200505073807.40332-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 22:22:07 -04:00
Jason Yan f71ded01cc scsi: bfa: Remove unneeded semicolon in bfa_fcs_rport.c
Fix the following coccicheck warning:

drivers/scsi/bfa/bfa_fcs_rport.c:2452:2-3: Unneeded semicolon
drivers/scsi/bfa/bfa_fcs_rport.c:1578:3-4: Unneeded semicolon

Link: https://lore.kernel.org/r/20200421033957.27783-1-yanaijie@huawei.com
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-24 18:21:15 -04:00
YueHaibing 0745c834f7 scsi: bfa: Remove set but not used variable 'fchs'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/bfa/bfa_svc.c: In function 'uf_recv':
drivers/scsi/bfa/bfa_svc.c:5520:17: warning:
 variable 'fchs' set but not used [-Wunused-but-set-variable]
  struct fchs_s *fchs;
                 ^

Link: https://lore.kernel.org/r/20200418071057.96699-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-24 18:21:15 -04:00
Jason Yan f166021c0f scsi: bfa: Remove unneeded semicolon in bfa_fcs_lport_ns_sm_online()
Fix the following coccicheck warning:

drivers/scsi/bfa/bfa_fcs_lport.c:4361:3-4: Unneeded semicolon

Link: https://lore.kernel.org/r/20200418070553.11262-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-24 18:21:15 -04:00
Jason Yan 4d5956fb51 scsi: bfa: bfad.c: make max_rport_logins static
Fix the following sparse warning:

drivers/scsi/bfa/bfad.c:53:17: warning: symbol 'max_rport_logins' was
not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-8-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:53 -04:00
Jason Yan 938b18462e scsi: bfa: bfad_attr.c: make two funcitons static
Fix the following sparse warning:

drivers/scsi/bfa/bfad_attr.c:441:1: warning: symbol
'bfad_im_issue_fc_host_lip' was not declared. Should it be static?
drivers/scsi/bfa/bfad_attr.c:566:1: warning: symbol
'bfad_im_vport_set_symbolic_name' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-7-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:52 -04:00
Jason Yan eae9b1788a scsi: bfa: bfa_ioc_ct.c: make two funcitons static
Fix the following sparse warning:

drivers/scsi/bfa/bfa_ioc_ct.c:368:1: warning: symbol
'bfa_ioc_ct2_lpu_read_stat' was not declared. Should it be static?
drivers/scsi/bfa/bfa_ioc_ct.c:748:1: warning: symbol
'bfa_ioc_ct2_mac_reset' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-6-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:51 -04:00
Jason Yan 901ad27c69 scsi: bfa: bfa_fcs_lport.c: make bfa_fcport_get_loop_attr() static
Fix the following sparse warning:

drivers/scsi/bfa/bfa_fcs_lport.c:1287:1: warning: symbol
'bfa_fcport_get_loop_attr' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-5-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:51 -04:00
Jason Yan 84a2fd236d scsi: bfa: bfa_fcpim.c: make two functions static
Fix the following sparse warning:

drivers/scsi/bfa/bfa_fcpim.c:440:1: warning: symbol
'bfa_ioim_profile_comp' was not declared. Should it be static?
drivers/scsi/bfa/bfa_fcpim.c:457:1: warning: symbol
'bfa_ioim_profile_start' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-4-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:50 -04:00
Jason Yan b9ddee1ee1 scsi: bfa: bfa_core.c: make bfa_isr_rspq() static
Fix the following sparse warning:

drivers/scsi/bfa/bfa_core.c:712:1: warning: symbol 'bfa_isr_rspq' was
not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-3-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:50 -04:00
Jason Yan 037773f3b6 scsi: bfa: bfa_svc.c: make two functions static
Fix the following sparse warning:

drivers/scsi/bfa/bfa_svc.c:4288:1: warning: symbol
'bfa_fcport_ddportenable' was not declared. Should it be static?
drivers/scsi/bfa/bfa_svc.c:4297:1: warning: symbol
'bfa_fcport_ddportdisable' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200407032202.36789-2-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:34:49 -04:00
YueHaibing 7cd4cb94cf scsi: bfa: Make restart_bfa static
Fix sparse warning:

drivers/scsi/bfa/bfad.c:1491:1: warning:
 symbol 'restart_bfa' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20190930094327.46836-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-30 23:59:53 -04:00
Navid Emamdoost 0e62395da2 scsi: bfa: release allocated memory in case of error
In bfad_im_get_stats if bfa_port_get_stats fails, allocated memory needs to
be released.

Link: https://lore.kernel.org/r/20190910234417.22151-1-navid.emamdoost@gmail.com
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-30 22:54:15 -04:00
Colin Ian King 5f6b4e1e09 scsi: bfa: remove redundant assignment to variable error
Variable error is being initialized with a value that is never read and
error is being re-assigned a little later on. The assignment is redundant
and hence can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 17:41:24 -04:00
Thomas Gleixner 52fa7bf9ea treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 292
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license gpl version 2
  as published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 66 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.606369721@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:38 +02:00
Linus Torvalds b4b52b881c Wimplicit-fallthrough patches for 5.2-rc1
Hi Linus,
 
 This is my very first pull-request.  I've been working full-time as
 a kernel developer for more than two years now. During this time I've
 been fixing bugs reported by Coverity all over the tree and, as part
 of my work, I'm also contributing to the KSPP. My work in the kernel
 community has been supervised by Greg KH and Kees Cook.
 
 OK. So, after the quick introduction above, please, pull the following
 patches that mark switch cases where we are expecting to fall through.
 These patches are part of the ongoing efforts to enable -Wimplicit-fallthrough.
 They have been ignored for a long time (most of them more than 3 months,
 even after pinging multiple times), which is the reason why I've created
 this tree. Most of them have been baking in linux-next for a whole development
 cycle. And with Stephen Rothwell's help, we've had linux-next nag-emails
 going out for newly introduced code that triggers -Wimplicit-fallthrough
 to avoid gaining more of these cases while we work to remove the ones
 that are already present.
 
 I'm happy to let you know that we are getting close to completing this
 work.  Currently, there are only 32 of 2311 of these cases left to be
 addressed in linux-next.  I'm auditing every case; I take a look into
 the code and analyze it in order to determine if I'm dealing with an
 actual bug or a false positive, as explained here:
 
 https://lore.kernel.org/lkml/c2fad584-1705-a5f2-d63c-824e9b96cf50@embeddedor.com/
 
 While working on this, I've found and fixed the following missing
 break/return bugs, some of them introduced more than 5 years ago:
 
 84242b82d8
 7850b51b6c
 5e420fe635
 09186e5034
 b5be853181
 7264235ee7
 cc5034a5d2
 479826cc86
 5340f23df8
 df997abeeb
 2f10d82373
 307b00c5e6
 5d25ff7a54
 a7ed5b3e7d
 c24bfa8f21
 ad0eaee619
 9ba8376ce1
 dc586a60a1
 a8e9b186f1
 4e57562b48
 60747828ea
 c5b974bee9
 cc44ba9116
 2c930e3d0a
 
 Once this work is finish, we'll be able to universally enable
 "-Wimplicit-fallthrough" to avoid any of these kinds of bugs from
 entering the kernel again.
 
 Thanks
 
 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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Merge tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull Wimplicit-fallthrough updates from Gustavo A. R. Silva:
 "Mark switch cases where we are expecting to fall through.

  This is part of the ongoing efforts to enable -Wimplicit-fallthrough.

  Most of them have been baking in linux-next for a whole development
  cycle. And with Stephen Rothwell's help, we've had linux-next
  nag-emails going out for newly introduced code that triggers
  -Wimplicit-fallthrough to avoid gaining more of these cases while we
  work to remove the ones that are already present.

  We are getting close to completing this work. Currently, there are
  only 32 of 2311 of these cases left to be addressed in linux-next. I'm
  auditing every case; I take a look into the code and analyze it in
  order to determine if I'm dealing with an actual bug or a false
  positive, as explained here:

      https://lore.kernel.org/lkml/c2fad584-1705-a5f2-d63c-824e9b96cf50@embeddedor.com/

  While working on this, I've found and fixed the several missing
  break/return bugs, some of them introduced more than 5 years ago.

  Once this work is finished, we'll be able to universally enable
  "-Wimplicit-fallthrough" to avoid any of these kinds of bugs from
  entering the kernel again"

* tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (27 commits)
  memstick: mark expected switch fall-throughs
  drm/nouveau/nvkm: mark expected switch fall-throughs
  NFC: st21nfca: Fix fall-through warnings
  NFC: pn533: mark expected switch fall-throughs
  block: Mark expected switch fall-throughs
  ASN.1: mark expected switch fall-through
  lib/cmdline.c: mark expected switch fall-throughs
  lib: zstd: Mark expected switch fall-throughs
  scsi: sym53c8xx_2: sym_nvram: Mark expected switch fall-through
  scsi: sym53c8xx_2: sym_hipd: mark expected switch fall-throughs
  scsi: ppa: mark expected switch fall-through
  scsi: osst: mark expected switch fall-throughs
  scsi: lpfc: lpfc_scsi: Mark expected switch fall-throughs
  scsi: lpfc: lpfc_nvme: Mark expected switch fall-through
  scsi: lpfc: lpfc_nportdisc: Mark expected switch fall-through
  scsi: lpfc: lpfc_hbadisc: Mark expected switch fall-throughs
  scsi: lpfc: lpfc_els: Mark expected switch fall-throughs
  scsi: lpfc: lpfc_ct: Mark expected switch fall-throughs
  scsi: imm: mark expected switch fall-throughs
  scsi: csiostor: csio_wr: mark expected switch fall-through
  ...
2019-05-07 12:48:10 -07:00
Gustavo A. R. Silva 8fabc0eb9d scsi: bfa: bfa_fcpim: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that I replaced "Fall through !!!" with a "fall through"
annotation, which is what GCC is expecting to find.

Addresses-Coverity-ID: 114971 ("Missing break in switch")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-04-08 18:37:24 -05:00
Will Deacon fb24ea52f7 drivers: Remove explicit invocations of mmiowb()
mmiowb() is now implied by spin_unlock() on architectures that require
it, so there is no reason to call it from driver code. This patch was
generated using coccinelle:

	@mmiowb@
	@@
	- mmiowb();

and invoked as:

$ for d in drivers include/linux/qed sound; do \
spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done

NOTE: mmiowb() has only ever guaranteed ordering in conjunction with
spin_unlock(). However, pairing each mmiowb() removal in this patch with
the corresponding call to spin_unlock() is not at all trivial, so there
is a small chance that this change may regress any drivers incorrectly
relying on mmiowb() to order MMIO writes between CPUs using lock-free
synchronisation. If you've ended up bisecting to this commit, you can
reintroduce the mmiowb() calls using wmb() instead, which should restore
the old behaviour on all architectures other than some esoteric ia64
systems.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-08 12:01:02 +01:00
Linus Torvalds 92fff53b71 SCSI misc on 20190306
This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
 hisi_sas, target/iscsi and target/core.  Additionally Christoph
 refactored gdth as part of the dma changes.  The major mid-layer
 change this time is the removal of bidi commands and with them the
 whole of the osd/exofs driver and filesystem.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
  hisi_sas, target/iscsi and target/core.

  Additionally Christoph refactored gdth as part of the dma changes. The
  major mid-layer change this time is the removal of bidi commands and
  with them the whole of the osd/exofs driver and filesystem. This is a
  major simplification for block and mq in particular"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits)
  scsi: cxgb4i: validate tcp sequence number only if chip version <= T5
  scsi: cxgb4i: get pf number from lldi->pf
  scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
  scsi: mpt3sas: Add missing breaks in switch statements
  scsi: aacraid: Fix missing break in switch statement
  scsi: kill command serial number
  scsi: csiostor: drop serial_number usage
  scsi: mvumi: use request tag instead of serial_number
  scsi: dpt_i2o: remove serial number usage
  scsi: st: osst: Remove negative constant left-shifts
  scsi: ufs-bsg: Allow reading descriptors
  scsi: ufs: Allow reading descriptor via raw upiu
  scsi: ufs-bsg: Change the calling convention for write descriptor
  scsi: ufs: Remove unused device quirks
  Revert "scsi: ufs: disable vccq if it's not needed by UFS device"
  scsi: megaraid_sas: Remove a bunch of set but not used variables
  scsi: clean obsolete return values of eh_timed_out
  scsi: sd: Optimal I/O size should be a multiple of physical block size
  scsi: MAINTAINERS: SCSI initiator and target tweaks
  scsi: fcoe: make use of fip_mode enum complete
  ...
2019-03-09 16:53:47 -08:00
Linus Torvalds df49fd0ff8 SCSI fixes on 20190302
Nine small fixes.  The resume fix is a cosmetic removal of a warning
 with an incorrect condition causing it to alarm people wrongly.  The
 other eight patches correct a thinko in Christoph Hellwig's DMA
 conversion series.  Without it all these drivers end up with 32 bit
 DMA masks meaning they bounce any page over 4GB before sending it to
 the controller.  Nowadays, even laptops mostly have memory above 4GB,
 so this can lead to significant performance degradation with all the
 bouncing.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Nine small fixes.

  The resume fix is a cosmetic removal of a warning with an incorrect
  condition causing it to alarm people wrongly.

  The other eight patches correct a thinko in Christoph Hellwig's DMA
  conversion series. Without it all these drivers end up with 32 bit DMA
  masks meaning they bounce any page over 4GB before sending it to the
  controller.

  Nowadays, even laptops mostly have memory above 4GB, so this can lead
  to significant performance degradation with all the bouncing"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: core: Avoid that system resume triggers a kernel warning
  scsi: hptiop: fix calls to dma_set_mask()
  scsi: hisi_sas: fix calls to dma_set_mask_and_coherent()
  scsi: csiostor: fix calls to dma_set_mask_and_coherent()
  scsi: bfa: fix calls to dma_set_mask_and_coherent()
  scsi: aic94xx: fix calls to dma_set_mask_and_coherent()
  scsi: 3w-sas: fix calls to dma_set_mask_and_coherent()
  scsi: 3w-9xxx: fix calls to dma_set_mask_and_coherent()
  scsi: lpfc: fix calls to dma_set_mask_and_coherent()
2019-03-02 11:39:54 -08:00
Hannes Reinecke 11ea382414 scsi: bfa: fix calls to dma_set_mask_and_coherent()
The change to use dma_set_mask_and_coherent() incorrectly made a second
call with the 32 bit DMA mask value when the call with the 64 bit DMA mask
value succeeded.

[mkp: fixed commit message]

Fixes: a69b080025 ("scsi: bfa: use dma_set_mask_and_coherent")
Cc: <stable@vger.kernel.org>
Suggested-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-25 21:44:29 -05:00
Greg Kroah-Hartman 8389f1281c scsi: bfa: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the return
value.  The function can work or not, but the code logic should never do
something different based on this.

[mkp: removed unused label]

Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:40 -05:00
Gustavo A. R. Silva f1b1dceedd scsi: bfa: bfa_ioc: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that, in this particular case, I replaced "!!! fall through !!!"
comment with "fall through" annotations, which is what GCC is expecting to
find.

Addresses-Coverity-ID: 146155 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 21:47:47 -05:00
Gustavo A. R. Silva d14e4cd45a scsi: bfa: bfa_fcs_rport: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that I replaced "!! fall through !!" and "!!! fall through !!!"
comments with "fall through" annotations, which is what GCC is expecting to
find.

Addresses-Coverity-ID: 744899 ("Missing break in switch")
Addresses-Coverity-ID: 744900 ("Missing break in switch")
Addresses-Coverity-ID: 744901 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 21:47:47 -05:00
Gustavo A. R. Silva 8425811b8d scsi: bfa: bfa_fcs_lport: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that, in this particular case, I replaced "!!! fall through !!!"
with a "fall through" annotation, which is what GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 21:47:47 -05:00
Luis Chamberlain 750afb08ca cross-tree: phase out dma_zalloc_coherent()
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-08 07:58:37 -05:00
Colin Ian King 009b715614 scsi: bfa: clean up a couple of indentation issues
There is a break statement with an extra space that needs removed and a
call to bfa_trc that is indented one level too much. Fix these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-19 21:54:58 -05:00
Christoph Hellwig 2a3d4eb8e2 scsi: flip the default on use_clustering
Most SCSI drivers want to enable "clustering", that is merging of
segments so that they might span more than a single page.  Remove the
ENABLE_CLUSTERING define, and require drivers to explicitly set
DISABLE_CLUSTERING to disable this feature.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-18 23:13:12 -05:00
Christoph Hellwig a69b080025 scsi: bfa: use dma_set_mask_and_coherent
The driver currently uses pci_set_dma_mask despite otherwise using the
generic DMA API.  Switch it over to the better generic DMA API helper and
also ensure we set the coherent mask as well in the resume path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:27:07 -05:00
Linus Torvalds d49f8a52b1 SCSI misc on 20181024
This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
 qla2xxx, lpfc, libsas, hisi_sas.  In addition there's a set of mostly
 small updates to the target subsystem a set of conversions to the
 generic DMA API, which do have some potential for issues in the older
 drivers but we'll handle those as case by case fixes. A new myrs for
 the DAC960/mylex raid controllers to replace the block based DAC960
 which is also being removed by Jens in this merge window. Plus the
 usual slew of trivial changes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
  qla2xxx, lpfc, libsas, hisi_sas.

  In addition there's a set of mostly small updates to the target
  subsystem a set of conversions to the generic DMA API, which do have
  some potential for issues in the older drivers but we'll handle those
  as case by case fixes.

  A new myrs driver for the DAC960/mylex raid controllers to replace the
  block based DAC960 which is also being removed by Jens in this merge
  window.

  Plus the usual slew of trivial changes"

[ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even
  wonder. There's also a "myrb" driver, where the 'b' stands for
  'block'. Truly, somebody has got mad naming skillz. - Linus ]

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits)
  scsi: myrs: Fix the processor absent message in processor_show()
  scsi: myrs: Fix a logical vs bitwise bug
  scsi: hisi_sas: Fix NULL pointer dereference
  scsi: myrs: fix build failure on 32 bit
  scsi: fnic: replace gross legacy tag hack with blk-mq hack
  scsi: mesh: switch to generic DMA API
  scsi: ips: switch to generic DMA API
  scsi: smartpqi: fully convert to the generic DMA API
  scsi: vmw_pscsi: switch to generic DMA API
  scsi: snic: switch to generic DMA API
  scsi: qla4xxx: fully convert to the generic DMA API
  scsi: qla2xxx: fully convert to the generic DMA API
  scsi: qla1280: switch to generic DMA API
  scsi: qedi: fully convert to the generic DMA API
  scsi: qedf: fully convert to the generic DMA API
  scsi: pm8001: switch to generic DMA API
  scsi: nsp32: switch to generic DMA API
  scsi: mvsas: fully convert to the generic DMA API
  scsi: mvumi: switch to generic DMA API
  scsi: mpt3sas: switch to generic DMA API
  ...
2018-10-25 07:40:30 -07:00
Nathan Chancellor 761c830ec7 scsi: bfa: Avoid implicit enum conversion in bfad_im_post_vendor_event
Clang warns when one enumerated type is implicitly converted to another.

drivers/scsi/bfa/bfa_fcs_lport.c:379:26: warning: implicit conversion
from enumeration type 'enum bfa_lport_aen_event' to different
enumeration type 'enum bfa_ioc_aen_event' [-Wenum-conversion]
                                  BFA_AEN_CAT_LPORT, event);
                                                     ^~~~~

The root cause of these warnings is the bfad_im_post_vendor_event
function, which expects a value from enum bfa_ioc_aen_event but there
are multiple instances of values from enums bfa_port_aen_event,
bfa_audit_aen_event, and bfa_lport_aen_event being used in this
function.

Given that this doesn't appear to be a problem since cat helps with
differentiating the events, just change evt's type to int so that no
conversion needs to happen and Clang won't warn. Update aen_type's type
in bfa_aen_entry_s as members that hold enumerated types should be int.

Link: https://github.com/ClangBuiltLinux/linux/issues/147
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-16 21:45:12 -04:00
Nathan Chancellor 6498cbc57f scsi: bfa: Remove unused functions
Clang warns when a variable is assigned to itself.

drivers/scsi/bfa/bfa_fcbuild.c:199:6: warning: explicitly assigning
value of variable of type 'int' to itself [-Wself-assign]
        len = len;
        ~~~ ^ ~~~
drivers/scsi/bfa/bfa_fcbuild.c:838:6: warning: explicitly assigning
value of variable of type 'int' to itself [-Wself-assign]
        len = len;
        ~~~ ^ ~~~
drivers/scsi/bfa/bfa_fcbuild.c:917:6: warning: explicitly assigning
value of variable of type 'int' to itself [-Wself-assign]
        len = len;
        ~~~ ^ ~~~
drivers/scsi/bfa/bfa_fcbuild.c:981:6: warning: explicitly assigning
value of variable of type 'int' to itself [-Wself-assign]
        len = len;
        ~~~ ^ ~~~
drivers/scsi/bfa/bfa_fcbuild.c:1008:6: warning: explicitly assigning
value of variable of type 'int' to itself [-Wself-assign]
        len = len;
        ~~~ ^ ~~~
5 warnings generated.

This construct is usually used to avoid unused variable warnings, which
I assume is the case here. -Wunused-parameter is hidden behind -Wextra
with GCC 4.6, which is the minimum version to compile the kernel as of
commit cafa0010cd ("Raise the minimum required gcc version to 4.6").

However, upon further inspection, these functions aren't actually used
anywhere; they're just defined. Rather than just removing the self
assignments, remove all of this dead code.

Link: https://github.com/ClangBuiltLinux/linux/issues/148
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-16 18:21:01 -04:00
Oza Pawandeep 62b36c3ea6 PCI/AER: Remove pci_cleanup_aer_uncorrect_error_status() calls
After bfcb79fca1 ("PCI/ERR: Run error recovery callbacks for all affected
devices"), AER errors are always cleared by the PCI core and drivers don't
need to do it themselves.

Remove calls to pci_cleanup_aer_uncorrect_error_status() from device
driver error recovery functions.

Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
[bhelgaas: changelog, remove PCI core changes, remove unused variables]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-02 16:04:40 -05:00
Johannes Thumshirn 55c9d37165 scsi: bfa: remove ScsiResult macro
Remove the ScsiResult macro and open code it on all call sites.

This will make subsequent refactoring in this area easier.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10 22:42:47 -04:00
Kees Cook 6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00