| Message ID | 20240412-zve-detection-v4-8-e0c45bb6b253@sifive.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 5ea6764d9095e234b024054f75ebbccc4f0eb146 |
| Headers | show |
| Series | Support Zve32[xf] and Zve64[xfd] Vector subextensions | expand |
diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/uapi/asm/hwprobe.h index b9a0876e969f..dfa7bdbcce92 100644 --- 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)
(1 << 31) is a signed negative integer, and it was sign-extended when being or'ed into the "missing" variable. This casues hwprobe not reflecing extensions named after RISCV_HWPROBE_EXT_ZVFHMIN. Fix it by defining it as a unsigend long long. Fixes: 5dadda5e6a59 ("riscv: hwprobe: export Zvfh[min] ISA extensions") Signed-off-by: Andy Chiu <andy.chiu@sifive.com> --- Changelog v4: - new patch since v4 --- arch/riscv/include/uapi/asm/hwprobe.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)