Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-18 10:01:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

IB/iser: Simplify prot_caps setting

Browse Source 
Reduce the number of instructions made for setting protection caps. No
need to do bitwise OR with 0 since we can zero the return value in the
beginning of the function.

Link: https://lore.kernel.org/r/20210111145754.56727-5-mgurtovoy@nvidia.com
Reviewed-by: Israel Rukshin <israelr@nvidia.com>
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Max Gurtovoy 2021-01-11 14:57:54 +00:00 committed by Jason Gunthorpe
parent 6bd898baf2
commit 877745b477
1 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/infiniband/ulp/iser/iscsi_iser.c
View File

@ -590,13 +590,20 @@ iscsi_iser_session_destroy(struct iscsi_cls_session *cls_session)
static inline unsigned int
iser_dif_prot_caps(int prot_caps)
{
return ((prot_caps & IB_PROT_T10DIF_TYPE_1) ?
SHOST_DIF_TYPE1_PROTECTION | SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION : 0) |
((prot_caps & IB_PROT_T10DIF_TYPE_2) ?
SHOST_DIF_TYPE2_PROTECTION | SHOST_DIX_TYPE2_PROTECTION : 0) |
((prot_caps & IB_PROT_T10DIF_TYPE_3) ?
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE3_PROTECTION : 0);
int ret = 0;
if (prot_caps & IB_PROT_T10DIF_TYPE_1)
ret |= SHOST_DIF_TYPE1_PROTECTION |
SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION;
if (prot_caps & IB_PROT_T10DIF_TYPE_2)
ret |= SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIX_TYPE2_PROTECTION;
if (prot_caps & IB_PROT_T10DIF_TYPE_3)
ret |= SHOST_DIF_TYPE3_PROTECTION |
SHOST_DIX_TYPE3_PROTECTION;
return ret;
}
/**