# git rev-parse -q --verify 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9^{commit}
47307c31d90ae7d52cebbbc7c1d4ff213213d4e9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9
# git clean -qxdf
# < git log -1
# commit 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9
# Author: Kees Cook <keescook@chromium.org>
# Date:   Wed Jan 12 12:38:11 2022 -0800
# 
#     crypto: octeontx2 - Avoid stack variable overflow
#     
#     Building with -Warray-bounds showed a stack variable array index
#     overflow. Increase the expected size of the array to avoid the warning:
#     
#     In file included from ./include/linux/printk.h:555,
#                      from ./include/asm-generic/bug.h:22,
#                      from ./arch/x86/include/asm/bug.h:84,
#                      from ./include/linux/bug.h:5,
#                      from ./include/linux/mmdebug.h:5,
#                      from ./include/linux/gfp.h:5,
#                      from ./include/linux/firmware.h:7,
#                      from drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c:5:
#     drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c: In function 'otx2_cpt_print_uc_dbg_info':
#     ./include/linux/dynamic_debug.h:162:33: warning: array subscript 4 is above array bounds of 'u32[4]' {aka 'unsigned int[4]'} [-Warray-bounds]
#       162 |         _dynamic_func_call(fmt, __dynamic_pr_debug,             \
#           |                                 ^
#     ./include/linux/dynamic_debug.h:134:17: note: in definition of macro '__dynamic_func_call'
#       134 |                 func(&id, ##__VA_ARGS__);               \
#           |                 ^~~~
#     ./include/linux/dynamic_debug.h:162:9: note: in expansion of macro '_dynamic_func_call'
#       162 |         _dynamic_func_call(fmt, __dynamic_pr_debug,             \
#           |         ^~~~~~~~~~~~~~~~~~
#     ./include/linux/printk.h:570:9: note: in expansion of macro 'dynamic_pr_debug'
#       570 |         dynamic_pr_debug(fmt, ##__VA_ARGS__)
#           |         ^~~~~~~~~~~~~~~~
#     drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c:1807:41: note: in expansion of macro 'pr_debug'
#      1807 |                                         pr_debug("Mask: %8.8x %8.8x %8.8x %8.8x %8.8x",
#           |                                         ^~~~~~~~
#     drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c:1765:13: note: while referencing 'mask'
#      1765 |         u32 mask[4];
#           |             ^~~~
#     
#     This is justified because the mask size (eng_grps->engs_num) can be at
#     most 144 (OTX2_CPT_MAX_ENGINES bits), which is larger than available
#     storage. 4 * 32 == 128, so this must be 5: 5 * 32bit = 160.
#     
#     Additionally clear the mask before conversion so trailing bits are zero.
#     
#     Cc: Herbert Xu <herbert@gondor.apana.org.au>
#     Cc: Boris Brezillon <bbrezillon@kernel.org>
#     Cc: Arnaud Ebalard <arno@natisbad.org>
#     Cc: Srujana Challa <schalla@marvell.com>
#     Cc: "David S. Miller" <davem@davemloft.net>
#     Cc: Suheil Chandran <schandran@marvell.com>
#     Cc: Shijith Thotton <sthotton@marvell.com>
#     Cc: Lukasz Bartosik <lbartosik@marvell.com>
#     Cc: linux-crypto@vger.kernel.org
#     Fixes: d9d7749773e8 ("crypto: octeontx2 - add apis for custom engine groups")
#     Acked-by: Ard Biesheuvel <ardb@kernel.org>
#     Signed-off-by: Kees Cook <keescook@chromium.org>
#     Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# Added to kconfig CONFIG_PERF_EVENTS=n
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 8 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/crypto_powernv_defconfig+NO_PERF_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/crypto_powernv_defconfig+NO_PERF_powerpc-gcc5
# Build took: 0:05:20.335080