# git rev-parse -q --verify 0e14ef38669ce4faa80589247fe8ed8a3780f414^{commit}
0e14ef38669ce4faa80589247fe8ed8a3780f414
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0e14ef38669ce4faa80589247fe8ed8a3780f414
# git clean -qxdf
# < git log -1
# commit 0e14ef38669ce4faa80589247fe8ed8a3780f414
# Author: Josh Poimboeuf <jpoimboe@redhat.com>
# Date:   Tue Sep 21 22:40:26 2021 -0700
# 
#     crypto: x86/sm4 - Fix frame pointer stack corruption
#     
#     sm4_aesni_avx_crypt8() sets up the frame pointer (which includes pushing
#     RBP) before doing a conditional sibling call to sm4_aesni_avx_crypt4(),
#     which sets up an additional frame pointer.  Things will not go well when
#     sm4_aesni_avx_crypt4() pops only the innermost single frame pointer and
#     then tries to return to the outermost frame pointer.
#     
#     Sibling calls need to occur with an empty stack frame.  Do the
#     conditional sibling call *before* setting up the stack pointer.
#     
#     This fixes the following warning:
#     
#       arch/x86/crypto/sm4-aesni-avx-asm_64.o: warning: objtool: sm4_aesni_avx_crypt8()+0x8: sibling call from callable instruction with modified stack frame
#     
#     Fixes: a7ee22ee1445 ("crypto: x86/sm4 - add AES-NI/AVX/x86_64 implementation")
#     Reported-by: kernel test robot <lkp@intel.com>
#     Reported-by: Arnd Bergmann <arnd@kernel.org>
#     Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
#     Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
#     Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
#     Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 0e14ef38669ce4faa80589247fe8ed8a3780f414
# < make -s -j 24 ARCH=x86 O=/kisskb/build/crypto_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 24 ARCH=x86 O=/kisskb/build/crypto_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 24 ARCH=x86 O=/kisskb/build/crypto_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 24 ARCH=x86 O=/kisskb/build/crypto_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/crypto_x86-allmodconfig_x86_64-gcc11
# Build took: 0:31:39.723872