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| author | Arnd Bergmann <arnd@arndb.de> | 2015-11-20 19:41:36 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-12-08 00:42:33 +0300 |
| commit | 2c63d1072ad7cf1059333ef5cfa06075bead4a39 (patch) | |
| tree | d4d2d40ca9d67e97ef9296bc878de62bc3e3aff1 /drivers/infiniband/ulp | |
| parent | d144da8c6f51f48ec39d891ea9dff80169c45f3b (diff) | |
| download | linux-2c63d1072ad7cf1059333ef5cfa06075bead4a39.tar.xz | |
IB/iser: use sector_div instead of do_div
do_div is the wrong way to divide a sector_t, as it is less
efficient when sector_t is 32-bit wide. With the upcoming
do_div optimizations, the kernel starts warning about this:
drivers/infiniband/ulp/iser/iser_verbs.c:1296:4: note: in expansion of macro 'do_div'
include/asm-generic/div64.h:224:22: warning: passing argument 1 of '__div64_32' from incompatible pointer type
This changes the code to use sector_div instead, which always
produces optimal code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/ulp')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index a93070210109..42f4da620f2e 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -1293,7 +1293,7 @@ u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task, if (mr_status.fail_status & IB_MR_CHECK_SIG_STATUS) { sector_t sector_off = mr_status.sig_err.sig_err_offset; - do_div(sector_off, sector_size + 8); + sector_div(sector_off, sector_size + 8); *sector = scsi_get_lba(iser_task->sc) + sector_off; pr_err("PI error found type %d at sector %llx " |