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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

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Pull crypto fix from Herbert Xu:
 "This fixes a bug on sparc where we may dereference freed stack memory"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: Work around deallocated stack frame reference gcc bug on sparc.
This commit is contained in:
Linus Torvalds 2017-06-15 17:54:51 +09:00
commit 54ed0f71f0
4 changed files with 16 additions and 5 deletions
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5
drivers/infiniband/sw/rxe/rxe.h
View file

@ -68,6 +68,7 @@
static inline u32 rxe_crc32(struct rxe_dev *rxe,
u32 crc, void *next, size_t len)
{
u32 retval;
int err;
SHASH_DESC_ON_STACK(shash, rxe->tfm);
@ -81,7 +82,9 @@ static inline u32 rxe_crc32(struct rxe_dev *rxe,
return crc32_le(crc, next, len);
}
return *(u32 *)shash_desc_ctx(shash);
retval = *(u32 *)shash_desc_ctx(shash);
barrier_data(shash_desc_ctx(shash));
return retval;
}
int rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);