diff options
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/alternative-macros.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/alternative-macros.h b/arch/arm64/include/asm/alternative-macros.h index 966767debaa3..b5ac0b85c9bb 100644 --- a/arch/arm64/include/asm/alternative-macros.h +++ b/arch/arm64/include/asm/alternative-macros.h @@ -2,12 +2,18 @@ #ifndef __ASM_ALTERNATIVE_MACROS_H #define __ASM_ALTERNATIVE_MACROS_H +#include <linux/bits.h> #include <linux/const.h> #include <asm/cpucaps.h> #include <asm/insn-def.h> -#define ARM64_CB_BIT (UL(1) << 15) +/* + * Binutils 2.27.0 can't handle a 'UL' suffix on constants, so for the assembly + * macros below we must use we must use `(1 << ARM64_CB_SHIFT)`. + */ +#define ARM64_CB_SHIFT 15 +#define ARM64_CB_BIT BIT(ARM64_CB_SHIFT) #if ARM64_NCAPS >= ARM64_CB_BIT #error "cpucaps have overflown ARM64_CB_BIT" @@ -80,7 +86,7 @@ __ALTERNATIVE_CFG(oldinstr, newinstr, feature, IS_ENABLED(cfg)) #define ALTERNATIVE_CB(oldinstr, feature, cb) \ - __ALTERNATIVE_CFG_CB(oldinstr, ARM64_CB_BIT | (feature), 1, cb) + __ALTERNATIVE_CFG_CB(oldinstr, (1 << ARM64_CB_SHIFT) | (feature), 1, cb) #else #include <asm/assembler.h> @@ -150,7 +156,7 @@ .macro alternative_cb cap, cb .set .Lasm_alt_mode, 0 .pushsection .altinstructions, "a" - altinstruction_entry 661f, \cb, ARM64_CB_BIT | \cap, 662f-661f, 0 + altinstruction_entry 661f, \cb, (1 << ARM64_CB_SHIFT) | \cap, 662f-661f, 0 .popsection 661: .endm |