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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-06-01 16:22:03 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-06-03 10:51:25 +0800 |
| commit | 0cf71a16fe0e984647c56ce9177522dfc4ebaff7 (patch) | |
| tree | 3266a3e487deca6bea340bce0dfe1b946b0c6bf4 /crypto/sha256_generic.c | |
| parent | 329ed874da6960a17a8defd0944646277052e7e0 (diff) | |
| download | linux-crypto-0cf71a16fe0e984647c56ce9177522dfc4ebaff7.tar.gz linux-crypto-0cf71a16fe0e984647c56ce9177522dfc4ebaff7.zip | |
crypto: scatterwalk - Hide PageSlab call to optimise away flush_dcache_page
On architectures where flush_dcache_page is not needed, we will
end up generating all the code up to the PageSlab call. This is
because PageSlab operates on a volatile pointer and thus cannot
be optimised away.
This patch works around this by checking whether flush_dcache_page
is needed before we call PageSlab which then allows PageSlab to be
compiled awy.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/sha256_generic.c')
0 files changed, 0 insertions, 0 deletions