summaryrefslogtreecommitdiffstats
path: root/debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:28:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:28:00 +0000
commit3565071f226432336a54d0193d729fa4508a3394 (patch)
tree4cde13f078f84c0a7785d234fd52edce7c90546a /debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch
parentAdding upstream version 6.6.15. (diff)
downloadlinux-3565071f226432336a54d0193d729fa4508a3394.tar.xz
linux-3565071f226432336a54d0193d729fa4508a3394.zip
Adding debian version 6.6.15-2.debian/6.6.15-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch')
-rw-r--r--debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch b/debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch
new file mode 100644
index 0000000000..1fb32b1ace
--- /dev/null
+++ b/debian/patches-rt/0090-printk-For-suppress_panic_printk-check-for-other-CPU.patch
@@ -0,0 +1,34 @@
+From: John Ogness <john.ogness@linutronix.de>
+Date: Fri, 13 Oct 2023 20:13:02 +0000
+Subject: [PATCH 090/134] printk: For @suppress_panic_printk check for other
+ CPU in panic
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz
+
+Currently @suppress_panic_printk is checked along with
+non-matching @panic_cpu and current CPU. This works
+because @suppress_panic_printk is only set when
+panic_in_progress() is true.
+
+Rather than relying on the @suppress_panic_printk semantics,
+use the concise helper function other_cpu_in_progress(). The
+helper function exists to avoid open coding such tests.
+
+Signed-off-by: John Ogness <john.ogness@linutronix.de>
+Reviewed-by: Petr Mladek <pmladek@suse.com>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ kernel/printk/printk.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -2271,8 +2271,7 @@ asmlinkage int vprintk_emit(int facility
+ if (unlikely(suppress_printk))
+ return 0;
+
+- if (unlikely(suppress_panic_printk) &&
+- atomic_read(&panic_cpu) != raw_smp_processor_id())
++ if (unlikely(suppress_panic_printk) && other_cpu_in_panic())
+ return 0;
+
+ if (level == LOGLEVEL_SCHED) {