Unverified Commit 5ea6764d authored by Clément Léger's avatar Clément Léger Committed by Palmer Dabbelt
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riscv: hwprobe: fix invalid sign extension for RISCV_HWPROBE_EXT_ZVFHMIN 



The current definition yields a negative 32bits signed value which
result in a mask with is obviously incorrect. Replace it by using a
1ULL bit shift value to obtain a single set bit mask.

Fixes: 5dadda5e ("riscv: hwprobe: export Zvfh[min] ISA extensions")
Signed-off-by: default avatarClément Léger <cleger@rivosinc.com>
Reviewed-by: default avatarAlexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20240409143839.558784-1-cleger@rivosinc.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent a373a36f

arch/riscv/include/uapi/asm/hwprobe.h

+1 −1
Original line number Diff line number Diff line
@@ -54,7 +54,7 @@ struct riscv_hwprobe { 
#define		RISCV_HWPROBE_EXT_ZFHMIN	(1 << 28)

#define		RISCV_HWPROBE_EXT_ZIHINTNTL	(1 << 29)

#define		RISCV_HWPROBE_EXT_ZVFH		(1 << 30)

#define		RISCV_HWPROBE_EXT_ZVFHMIN	(1 << 31)

#define		RISCV_HWPROBE_EXT_ZVFHMIN	(1ULL << 31)

#define		RISCV_HWPROBE_EXT_ZFA		(1ULL << 32)

#define		RISCV_HWPROBE_EXT_ZTSO		(1ULL << 33)

#define		RISCV_HWPROBE_EXT_ZACAS		(1ULL << 34)