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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2014-03-27 18:14:40 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-04-14 06:50:05 -0700
commitcf0983a4a1db58bb7049af652d3979bf6261f939 (patch)
tree276d188bdeccc64586f9a7c65a0830b7fa86610e /mm/vmscan.c
parent30062756651927f05191b906236ad030a030dc61 (diff)
crypto: ghash-clmulni-intel - use C implementation for setkey()
commit 8ceee72808d1ae3fb191284afc2257a2be964725 upstream. The GHASH setkey() function uses SSE registers but fails to call kernel_fpu_begin()/kernel_fpu_end(). Instead of adding these calls, and then having to deal with the restriction that they cannot be called from interrupt context, move the setkey() implementation to the C domain. Note that setkey() does not use any particular SSE features and is not expected to become a performance bottleneck. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Fixes: 0e1227d356e9b (crypto: ghash - Add PCLMULQDQ accelerated implementation) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/vmscan.c')
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