diff options
| author | Michal Suchanek <msuchanek@suse.de> | 2019-09-12 22:46:33 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-11-13 08:58:10 +0300 |
| commit | 42484d2c0f82b666292faf6668c77b49a3a04bc0 (patch) | |
| tree | 3aece2e116c523696ae045f669c8580db701ac86 /arch | |
| parent | de84ffc3ccbeec3678f95a3d898fc188efa0d9c5 (diff) | |
| download | linux-42484d2c0f82b666292faf6668c77b49a3a04bc0.tar.xz | |
powerpc/perf: remove current_is_64bit()
Since commit ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK")
current_is_64bit() is quivalent to !is_32bit_task().
Remove the redundant function.
Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190912194633.12045-1-msuchanek@suse.de
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/perf/callchain.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c index c84bbd4298a0..35d542515faf 100644 --- a/arch/powerpc/perf/callchain.c +++ b/arch/powerpc/perf/callchain.c @@ -284,16 +284,6 @@ static void perf_callchain_user_64(struct perf_callchain_entry_ctx *entry, } } -static inline int current_is_64bit(void) -{ - /* - * We can't use test_thread_flag() here because we may be on an - * interrupt stack, and the thread flags don't get copied over - * from the thread_info on the main stack to the interrupt stack. - */ - return !test_ti_thread_flag(task_thread_info(current), TIF_32BIT); -} - #else /* CONFIG_PPC64 */ /* * On 32-bit we just access the address and let hash_page create a @@ -321,11 +311,6 @@ static inline void perf_callchain_user_64(struct perf_callchain_entry_ctx *entry { } -static inline int current_is_64bit(void) -{ - return 0; -} - static inline int valid_user_sp(unsigned long sp, int is_64) { if (!sp || (sp & 7) || sp > TASK_SIZE - 32) @@ -486,7 +471,7 @@ static void perf_callchain_user_32(struct perf_callchain_entry_ctx *entry, void perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs) { - if (current_is_64bit()) + if (!is_32bit_task()) perf_callchain_user_64(entry, regs); else perf_callchain_user_32(entry, regs); |