[PATCH] powerpc/perf: remove current_is_64bit()
From: Michal Suchanek <hidden>
Date: 2019-09-12 19:46:40
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Since commit ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK")
current_is_64bit() is quivalent to !is_32bit_task().
Remove the redundant function.
Link: https://github.com/linuxppc/issues/issues/275
Link: https://lkml.org/lkml/2019/9/12/540
Fixes: linuxppc#275
Suggested-by: Christophe Leroy <redacted>
Signed-off-by: Michal Suchanek <redacted>
---
arch/powerpc/perf/callchain.c | 14 +-------------
1 file changed, 1 insertion(+), 13 deletions(-)
diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c
index 8f30f1b47c78..dd5051015008 100644
--- a/arch/powerpc/perf/callchain.c
+++ b/arch/powerpc/perf/callchain.c@@ -100,22 +100,10 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re } } -static inline int current_is_64bit(void) -{ - if (!IS_ENABLED(CONFIG_COMPAT)) - return IS_ENABLED(CONFIG_PPC64); - /* - * 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); -} - 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);
--
2.23.0