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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2017-01-12 16:10:00 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-01-12 16:10:00 +0800 |
| commit | 4cf0662888026d5c1b62ed3fa8dc048a2ff2e124 (patch) | |
| tree | a5c92c5024c599a00bfd8d402d2b7b0a619b0259 /arch/arm64/include/asm/current.h | |
| parent | c821f6ab2e47946f35ee2f30781c5185e5d07f65 (diff) | |
| parent | a121103c922847ba5010819a3f250f1f7fc84ab8 (diff) | |
| download | op-kernel-dev-4cf0662888026d5c1b62ed3fa8dc048a2ff2e124.zip op-kernel-dev-4cf0662888026d5c1b62ed3fa8dc048a2ff2e124.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merging 4.10-rc3 so that the cryptodev tree builds on ARM64.
Diffstat (limited to 'arch/arm64/include/asm/current.h')
| -rw-r--r-- | arch/arm64/include/asm/current.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/current.h b/arch/arm64/include/asm/current.h index f2bcbe2..86c4041 100644 --- a/arch/arm64/include/asm/current.h +++ b/arch/arm64/include/asm/current.h @@ -9,9 +9,17 @@ struct task_struct; +/* + * We don't use read_sysreg() as we want the compiler to cache the value where + * possible. + */ static __always_inline struct task_struct *get_current(void) { - return (struct task_struct *)read_sysreg(sp_el0); + unsigned long sp_el0; + + asm ("mrs %0, sp_el0" : "=r" (sp_el0)); + + return (struct task_struct *)sp_el0; } #define current get_current() |
