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| author |   Arnd Bergmann <arnd@arndb.de> | 2016-09-19 13:57:26 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-12-12 16:31:45 -0500 |
| commit | a0fa72683e78979ef1123d679b1c40ae28bd9096 (patch) | |
| tree | 5222fc413b272f38aa61ca3c7811c04f05444087 /drivers/infiniband/sw/rxe/rxe_net.c | |
| parent | net/mlx5e: Add tc support for FWD rule with counter (diff) | |
| download | linux-dev-a0fa72683e78979ef1123d679b1c40ae28bd9096.tar.xz linux-dev-a0fa72683e78979ef1123d679b1c40ae28bd9096.zip | |
IB/rxe: avoid putting a large struct rxe_qp on stack
A race condition fix added an rxe_qp structure to the stack in order
to be able to perform rollback in rxe_requester(), but the structure
is large enough to trigger the warning for possible stack overflow:
drivers/infiniband/sw/rxe/rxe_req.c: In function 'rxe_requester':
drivers/infiniband/sw/rxe/rxe_req.c:757:1: error: the frame size of 2064 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
This changes the rollback function to only save the psn inside
the qp, which is the only field we access in the rollback_qp
anyway.
Fixes: 3050b9985024 ("IB/rxe: Fix race condition between requester and completer")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_net.c')
0 files changed, 0 insertions, 0 deletions