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authorLeon Romanovsky <leonro@mellanox.com>2017-05-04 15:36:07 +0300
committerDoug Ledford <dledford@redhat.com>2017-05-05 02:31:46 +0300
commitaf5df5fb59ee01e78fd334c3d6202d9e7bcfddd3 (patch)
treebfae267ecd0f30f91bd9ba9828c07d7ff936c848 /drivers/infiniband
parent62239fc6e5545b2e59f83dfbc5db231a81f37a45 (diff)
downloadlinux-af5df5fb59ee01e78fd334c3d6202d9e7bcfddd3.tar.xz
IB/rxe: Update caller's CRC for RXE_MEM_TYPE_DMA memory type
Callers of rxe_mem_copy() provide pointer to store updated CRC value. That pointer was supposed to be updated, but the commit cee2688e3cd6 ("IB/rxe: Offload CRC calculation when possible") mistakenly removed that assignment for RXE_MEM_TYPE_DMA memory type. The code worked because there are no actual callers with RXE_MEM_TYPE_DMA, who are interested in returned value of crcp. The one caller in read_reply(), who uses the returned crcp didn't set RXE_MEM_TYPE_DMA as mem->type. Fixes: cee2688e3cd6 ("IB/rxe: Offload CRC calculation when possible") Reported-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_mr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
index ced15c4446bd..e37cc89987e1 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -368,7 +368,7 @@ int rxe_mem_copy(struct rxe_mem *mem, u64 iova, void *addr, int length,
((void *)(uintptr_t)iova) : addr;
if (crcp)
- crc = rxe_crc32(to_rdev(mem->pd->ibpd.device),
+ *crcp = rxe_crc32(to_rdev(mem->pd->ibpd.device),
*crcp, src, length);
memcpy(dest, src, length);