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: 5dadda5e6a59 ("riscv: hwprobe: export Zvfh[min] ISA extensions")
Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20240409143839.558784-1-cleger@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/uapi/asm/hwprobe.h
index 9f2a8e3ff2048e78201e188a5fc832a67429a06c..2902f68dc913aa620996da70d9b9bad39a133c2c 100644 (file)
--- a/arch/riscv/include/uapi/asm/hwprobe.h
+++ b/arch/riscv/include/uapi/asm/hwprobe.h
@@ -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)