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author | Eric Biggers <ebiggers@google.com> | 2020-05-02 11:24:22 -0700 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-08 15:32:16 +1000 |
commit | 1c4b3c409998a7d63ed9b590e3601cf7c4d102b5 (patch) | |
tree | 449afb2538bd58f833b5d0ccfa7ece0efd7dce9d /tools/perf/scripts/python/exported-sql-viewer.py | |
parent | ac0ad93df7136e27d2a9c5ec554547695f581d0e (diff) |
crypto: powerpc/sha1 - remove unused temporary workspace
The PowerPC implementation of SHA-1 doesn't actually use the 16-word
temporary array that's passed to the assembly code. This was probably
meant to correspond to the 'W' array that lib/sha1.c uses. However, in
sha1-powerpc-asm.S these values are actually stored in GPRs 16-31.
Referencing SHA_WORKSPACE_WORDS from this code also isn't appropriate,
since it's an implementation detail of lib/sha1.c.
Therefore, just remove this unneeded array.
Tested with:
export ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu-
make mpc85xx_defconfig
cat >> .config << EOF
# CONFIG_MODULES is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y
CONFIG_CRYPTO_SHA1_PPC=y
EOF
make olddefconfig
make -j32
qemu-system-ppc -M mpc8544ds -cpu e500 -nographic \
-kernel arch/powerpc/boot/zImage \
-append "cryptomgr.fuzz_iterations=1000 cryptomgr.panic_on_fail=1"
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions