diff options
Diffstat (limited to 'arch/powerpc/perf/callchain.c')
| -rw-r--r-- | arch/powerpc/perf/callchain.c | 23 |
1 files changed, 2 insertions, 21 deletions
diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c index 0af051a1974e..35d542515faf 100644 --- a/arch/powerpc/perf/callchain.c +++ b/arch/powerpc/perf/callchain.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Performance counter callchain support - powerpc architecture code * * Copyright © 2009 Paul Mackerras, IBM Corporation. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> #include <linux/sched.h> @@ -288,16 +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 @@ -325,11 +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) @@ -490,7 +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); |
