diff options
| author | Palmer Dabbelt <palmer@rivosinc.com> | 2023-02-03 02:38:32 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-02-22 04:21:14 +0300 |
| commit | 2350bd192fa2d9ffa7a0dc7db12699c0f71af7f8 (patch) | |
| tree | 4582ab7b2521d02bb3204962d6e4362690c34bfb /arch/riscv/include/asm/hwcap.h | |
| parent | b49f700668fff7565b945dce823def79bff59bb0 (diff) | |
| download | linux-2350bd192fa2d9ffa7a0dc7db12699c0f71af7f8.tar.xz | |
RISC-V: Only provide the single-letter extensions in HWCAP
The recent refactoring led to us leaking some HWCAP bits to userspace
that didn't make much sense. With any luck we'll have a better scheme
soon, but for now just mask off those bits to avoid polluting userspace.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230202233832.11036-1-palmer@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/hwcap.h')
| -rw-r--r-- | arch/riscv/include/asm/hwcap.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index ee9c80fe0062..831bebacb7fb 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -52,18 +52,10 @@ #include <linux/jump_label.h> -/* - * This yields a mask that user programs can use to figure out what - * instruction set this cpu supports. - */ -#define ELF_HWCAP (elf_hwcap) - enum { CAP_HWCAP = 1, }; -extern unsigned long elf_hwcap; - struct riscv_isa_ext_data { /* Name of the extension displayed to userspace via /proc/cpuinfo */ char uprop[RISCV_ISA_EXT_NAME_LEN_MAX]; |