diff options
| author | Clément Léger <cleger@rivosinc.com> | 2025-02-10 16:56:14 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-07 18:27:14 +0100 |
| commit | 80aca44bf5aef32dbec6a3a36b2eb3cf5569ab4c (patch) | |
| tree | 4fc4c22b20622074fa6d0d77f3fcdea6370cb35c | |
| parent | 87ba35b7a35382438c591249e9e824e5a1336075 (diff) | |
riscv: cpufeature: use bitmap_equal() instead of memcmp()
commit c6ec1e1b078d8e2ecd075e46db6197a14930a3fc upstream.
Comparison of bitmaps should be done using bitmap_equal(), not memcmp(),
use the former one to compare isa bitmaps.
Signed-off-by: Clément Léger <cleger@rivosinc.com>
Fixes: 625034abd52a8c ("riscv: add ISA extensions validation callback")
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250210155615.1545738-1-cleger@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/riscv/kernel/cpufeature.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index c0916ed318c2..aaf5fa57591b 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -475,7 +475,7 @@ static void __init riscv_resolve_isa(unsigned long *source_isa, if (bit < RISCV_ISA_EXT_BASE) *this_hwcap |= isa2hwcap[bit]; } - } while (loop && memcmp(prev_resolved_isa, resolved_isa, sizeof(prev_resolved_isa))); + } while (loop && !bitmap_equal(prev_resolved_isa, resolved_isa, RISCV_ISA_EXT_MAX)); } static void __init match_isa_ext(const char *name, const char *name_end, unsigned long *bitmap) |