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| author | Ravi Bangoria <ravi.bangoria@linux.ibm.com> | 2021-01-29 10:17:45 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-01-30 14:23:26 +0300 |
| commit | 344717a14cd7272f88346022a77742323346299e (patch) | |
| tree | fffc93e2ce9a766d8b6e7d4a708adf9434a2e161 /arch/powerpc/kernel/vdso64_wrapper.S | |
| parent | 4025c784c573cab7e3f84746cc82b8033923ec62 (diff) | |
| download | linux-344717a14cd7272f88346022a77742323346299e.tar.xz | |
powerpc/sstep: Fix array out of bound warning
Compiling kernel with -Warray-bounds throws below warning:
In function 'emulate_vsx_store':
warning: array subscript is above array bounds [-Warray-bounds]
buf.d[2] = byterev_8(reg->d[1]);
~~~~~^~~
buf.d[3] = byterev_8(reg->d[0]);
~~~~~^~~
Fix it by using temporary array variable 'union vsx_reg buf32[]' in
that code block. Also, with element_size = 32, 'union vsx_reg *reg'
is an array of size 2. So, use 'reg' as an array instead of pointer
in the same code block.
Fixes: af99da74333b ("powerpc/sstep: Support VSX vector paired storage access instructions")
Suggested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210129071745.111466-1-ravi.bangoria@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kernel/vdso64_wrapper.S')
0 files changed, 0 insertions, 0 deletions