diff options
Diffstat (limited to 'debian/patches-rt/preempt-Put-preempt_enable-within-an-instrumentation.patch')
| -rw-r--r-- | debian/patches-rt/preempt-Put-preempt_enable-within-an-instrumentation.patch | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/debian/patches-rt/preempt-Put-preempt_enable-within-an-instrumentation.patch b/debian/patches-rt/preempt-Put-preempt_enable-within-an-instrumentation.patch deleted file mode 100644 index beddd4726..000000000 --- a/debian/patches-rt/preempt-Put-preempt_enable-within-an-instrumentation.patch +++ /dev/null @@ -1,47 +0,0 @@ -From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> -Date: Wed, 8 Mar 2023 16:29:38 +0100 -Subject: [PATCH] preempt: Put preempt_enable() within an instrumentation*() - section. -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz - -Callers of preempt_enable() can be within an noinstr section leading to: -| vmlinux.o: warning: objtool: native_sched_clock+0x97: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section -| vmlinux.o: warning: objtool: kvm_clock_read+0x22: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section -| vmlinux.o: warning: objtool: local_clock+0xb4: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section -| vmlinux.o: warning: objtool: enter_from_user_mode+0xea: call to preempt_schedule_thunk() leaves .noinstr.text section -| vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x140: call to preempt_schedule_thunk() leaves .noinstr.text section -| vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0xf2: call to preempt_schedule_thunk() leaves .noinstr.text section -| vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0xea: call to preempt_schedule_thunk() leaves .noinstr.text section - -Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> -Link: https://lore.kernel.org/r/20230309072724.3F6zRkvw@linutronix.de ---- - include/linux/preempt.h | 10 ++++++++-- - 1 file changed, 8 insertions(+), 2 deletions(-) - ---- a/include/linux/preempt.h -+++ b/include/linux/preempt.h -@@ -230,15 +230,21 @@ do { \ - #define preempt_enable() \ - do { \ - barrier(); \ -- if (unlikely(preempt_count_dec_and_test())) \ -+ if (unlikely(preempt_count_dec_and_test())) { \ -+ instrumentation_begin(); \ - __preempt_schedule(); \ -+ instrumentation_end(); \ -+ } \ - } while (0) - - #define preempt_enable_notrace() \ - do { \ - barrier(); \ -- if (unlikely(__preempt_count_dec_and_test())) \ -+ if (unlikely(__preempt_count_dec_and_test())) { \ -+ instrumentation_begin(); \ - __preempt_schedule_notrace(); \ -+ instrumentation_end(); \ -+ } \ - } while (0) - - #define preempt_check_resched() \ |