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riscv: cpufeature: use bitmap_equal() instead of memcmp()

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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: 625034abd5 ("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>
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Clément Léger 2025-02-10 16:56:14 +01:00 • committed by Palmer Dabbelt
parent fb8179ce29
commit c6ec1e1b07
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1 changed files with 1 additions and 1 deletions
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arch/riscv/kernel/cpufeature.c
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@ -479,7 +479,7 @@ 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)