IB/iser: use sector_div instead of do_div
authorArnd Bergmann <arnd@arndb.de>
Fri, 20 Nov 2015 16:41:36 +0000 (17:41 +0100)
committerDoug Ledford <dledford@redhat.com>
Mon, 7 Dec 2015 21:42:33 +0000 (16:42 -0500)
commit2c63d1072ad7cf1059333ef5cfa06075bead4a39
treed4d2d40ca9d67e97ef9296bc878de62bc3e3aff1
parentd144da8c6f51f48ec39d891ea9dff80169c45f3b
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>
drivers/infiniband/ulp/iser/iser_verbs.c