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| author | Serge Semin <fancer.lancer@gmail.com> | 2017-12-06 15:31:54 +0100 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2018-01-29 04:17:24 +0100 |
| commit | f1678a4c66a5c2cb43f744f7dc7e048d59690166 (patch) | |
| tree | ab3025b16f95c20f786e988c5eb93feef9f61b57 /drivers/ntb | |
| parent | NTB: Set dma mask and dma coherent mask to NTB devices (diff) | |
| download | linux-f1678a4c66a5c2cb43f744f7dc7e048d59690166.tar.xz linux-f1678a4c66a5c2cb43f744f7dc7e048d59690166.zip | |
NTB: Fix UB/bug in ntb_mw_get_align()
Simple (1 << pidx) operation causes undefined behaviour when
pidx >= 32. It must be casted to u64 to match the actual return
value of ntb_link_is_up() method, so to have all the possible
peer indexes covered and to get rid of undefined behaviour.
Additionally there are special macros in "linux/bitops.h" to perform
the bit-set-shift operations, so it's recommended to have them used
for proper bit setting.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
0 files changed, 0 insertions, 0 deletions