# git rev-parse -q --verify 46d8c4b28652d35dc6cfb5adf7f54e102fc04384^{commit}
46d8c4b28652d35dc6cfb5adf7f54e102fc04384
already have revision, skipping fetch
# git checkout -q -f -B kisskb 46d8c4b28652d35dc6cfb5adf7f54e102fc04384
# git clean -qxdf
# < git log -1
# commit 46d8c4b28652d35dc6cfb5adf7f54e102fc04384
# Author: Herbert Xu <herbert@gondor.apana.org.au>
# Date:   Fri Jul 13 16:12:32 2018 +0800
# 
#     crypto: padlock-aes - Fix Nano workaround data corruption
#     
#     This was detected by the self-test thanks to Ard's chunking patch.
#     
#     I finally got around to testing this out on my ancient Via box.  It
#     turns out that the workaround got the assembly wrong and we end up
#     doing count + initial cycles of the loop instead of just count.
#     
#     This obviously causes corruption, either by overwriting the source
#     that is yet to be processed, or writing over the end of the buffer.
#     
#     On CPUs that don't require the workaround only ECB is affected.
#     On Nano CPUs both ECB and CBC are affected.
#     
#     This patch fixes it by doing the subtraction prior to the assembly.
#     
#     Fixes: a76c1c23d0c3 ("crypto: padlock-aes - work around Nano CPU...")
#     Cc: <stable@vger.kernel.org>
#     Reported-by: Jamie Heilman <jamie@audible.transient.net>
#     Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
# < /opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version
# < git log --format=%s --max-count=1 46d8c4b28652d35dc6cfb5adf7f54e102fc04384
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  powernv_defconfig
# Added to kconfig CONFIG_PERF_EVENTS=n
# yes \n | make -s -j 10 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 10 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
WARNING: modpost: Found 2 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
Completed OK
# rm -rf /kisskb/build/crypto_powernv_defconfig+NO_PERF_ppc64le
# Build took: 0:02:54.673068