system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-03 09:48:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

s390/qdio: clarify size of the QIB parm area

Browse source 
The QIB parm area is 128 bytes long. Current code consistently misuses
an _entirely unrelated_ QDIO constant, merely because it has the same
value. Stop doing so.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Julian Wiedmann 2019-09-20 10:17:09 +02:00 committed by Vasily Gorbik
parent e14e59c125
commit 9f494438d4
3 changed files with 3 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/s390/include/asm/qdio.h
View file

@ -111,7 +111,7 @@ struct qib {
/* private: */
u8 res[88];
/* public: */
u8 parm[QDIO_MAX_BUFFERS_PER_Q];
u8 parm[128];
} __attribute__ ((packed, aligned(256)));
/**

2
drivers/s390/cio/qdio_setup.c
View file

@ -113,7 +113,7 @@ static void set_impl_params(struct qdio_irq *irq_ptr,
irq_ptr->qib.pfmt = qib_param_field_format;
if (qib_param_field)
memcpy(irq_ptr->qib.parm, qib_param_field,
QDIO_MAX_BUFFERS_PER_Q);
sizeof(irq_ptr->qib.parm));
if (!input_slib_elements)
goto output;

3
drivers/s390/net/qeth_core_main.c
View file

@ -4715,8 +4715,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
QETH_CARD_TEXT(card, 2, "qdioest");
qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q,
GFP_KERNEL);
qib_param_field = kzalloc(FIELD_SIZEOF(struct qib, parm), GFP_KERNEL);
if (!qib_param_field) {
rc = -ENOMEM;
goto out_free_nothing;