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crypto: scatterwalk - Remove obsolete PageSlab check 

As it is now legal to call flush_dcache_page on slab pages we
no longer need to do the check in the Crypto API.

Reported-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2021-06-24 14:32:15 +08:00
parent cd5c91fe62
commit b0d2193ba6
1 changed files with 1 additions and 6 deletions
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7
include/crypto/scatterwalk.h
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@ -81,12 +81,7 @@ static inline void scatterwalk_pagedone(struct scatter_walk *walk, int out,
struct page *page;
page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);
/* Test ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE first as
* PageSlab cannot be optimised away per se due to
* use of volatile pointer.
*/
if (ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE && !PageSlab(page))
flush_dcache_page(page);
flush_dcache_page(page);
}
if (more && walk->offset >= walk->sg->offset + walk->sg->length)