Andreas Schwab 599c44cd21 riscv/futex: sign extend compare value in atomic cmpxchg ... Make sure the compare value in the lr/sc loop is sign extended to match what lr.w does. Fortunately, due to the compiler keeping the register contents sign extended anyway the lack of the explicit extension didn't result in wrong code so far, but this cannot be relied upon. Fixes: b90edb3301 ("RISC-V: Add futex support.") Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Björn Töpel <bjorn@rivosinc.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/mvmfrkv2vhz.fsf@suse.de Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2025-02-14 13:06:31 -08:00
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asm	riscv/futex: sign extend compare value in atomic cmpxchg	2025-02-14 13:06:31 -08:00
uapi/asm	RISC-V Patches for the 6.14 Merge Window, Part 1	2025-01-31 15:13:25 -08:00