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linux/arch/mips/mm
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Paul Burton d411da06ab
MIPS: dma-noncoherent: Remove bogus condition in dma_sync_phys() 
Commit e36863a550 ("MIPS: HIGHMEM DMA on noncoherent MIPS32
processors") introduced code which:

  1) Calculates an offset within a page, by ANDing an address
     with ~PAGE_MASK.

  2) Checks whether that offset is >= PAGE_SIZE.

This check can never evaluate true, making the code it guards
unreachable. smatch spots bogus arithmetic resulting from the
impossible condition, resulting in the following warning:

  arch/mips/mm/dma-noncoherent.c:125
    dma_sync_phys() warn: mask and shift to zero

Fix this by removing the impossible to satisfy condition & the
unreachable code it guards.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
2019-02-19 12:17:43 -08:00
..
c-octeon.c MIPS: Delete unused flush_cache_sigtramp() 2019-02-07 12:59:45 -08:00
c-r3k.c MIPS: Delete unused flush_cache_sigtramp() 2019-02-07 12:59:45 -08:00
c-r4k.c MIPS: Delete unused flush_cache_sigtramp() 2019-02-07 12:59:45 -08:00
c-tx39.c MIPS: Delete unused flush_cache_sigtramp() 2019-02-07 12:59:45 -08:00
cache.c MIPS: Delete unused flush_cache_sigtramp() 2019-02-07 12:59:45 -08:00
cerr-sb1.c MIPS: Sibyte: Fix build for SIBYTE_BW_TRACE on BCM1x55 and BCM1x80. 2013-06-21 18:07:02 +02:00
cex-gen.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cex-oct.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cex-sb1.S mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
context.c MIPS: Export mm switching functions used by KVM 2019-02-05 11:44:44 -08:00
dma-noncoherent.c MIPS: dma-noncoherent: Remove bogus condition in dma_sync_phys() 2019-02-19 12:17:43 -08:00
extable.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fault.c mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
gup.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
highmem.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlbpage.c mm/hugetlb: add size parameter to huge_pte_offset() 2017-07-06 16:24:34 -07:00
init.c MIPS: MemoryMapID (MMID) Support 2019-02-04 10:56:41 -08:00
ioremap.c MIPS: Fix ioremap() RAM check 2018-07-05 14:43:21 -07:00
Makefile MIPS: mm: Un-inline get_new_mmu_context 2019-02-04 10:56:28 -08:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
page-funcs.S MIPS: Export {copy, clear}_page functions alongside their definitions 2017-01-03 16:48:39 +01:00
page.c arch: mips: mm: page: Remove unused function 2018-06-24 09:27:27 -07:00
pgtable-32.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
pgtable-64.c MIPS: Add 48-bit VA space (and 4-level page tables) for 4K pages. 2017-04-10 11:56:06 +02:00
pgtable.c MIPS: Move pgd_alloc() out of header 2017-02-02 15:06:26 +00:00
sc-debugfs.c mips: mm: no need to check return value of debugfs_create functions 2019-01-22 11:17:20 -08:00
sc-ip22.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sc-mips.c MIPS: JZ4770: Work around config2 misreporting associativity 2018-01-18 22:07:44 +00:00
sc-r5k.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sc-rm7k.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tlb-funcs.S MIPS: Consistently declare TLB functions 2018-08-10 17:27:53 -07:00
tlb-r3k.c MIPS: mm: Remove local_flush_tlb_mm() 2019-02-04 10:56:24 -08:00
tlb-r4k.c MIPS: MemoryMapID (MMID) Support 2019-02-04 10:56:41 -08:00
tlb-r8k.c MIPS: mm: Remove local_flush_tlb_mm() 2019-02-04 10:56:24 -08:00
tlbex-fault.S MIPS: Add DWARF unwinding to assembly 2017-09-06 11:01:52 +02:00
tlbex.c mips: annotate implicit fall throughs 2018-12-03 13:42:38 -08:00
uasm-micromips.c mips: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_X 2018-12-07 13:30:48 -08:00
uasm-mips.c mips: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_X 2018-12-07 13:30:48 -08:00
uasm.c mips: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_X 2018-12-07 13:30:48 -08:00