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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 | 160544075f2a4028209721723a51f16add7b08b9 (patch) | |
| tree | 06a0f03134acaf222ed0b23a47d2a1e40cdd7808 /Documentation/nfc | |
| parent | b7c89d9e2fef1c9f4c9d8bacf0c1459e30561289 (diff) | |
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 'Documentation/nfc')
0 files changed, 0 insertions, 0 deletions