diff options
Diffstat (limited to 'features/rt/printk-relocate-printk_delay-and-vprintk_default.patch')
| -rw-r--r-- | features/rt/printk-relocate-printk_delay-and-vprintk_default.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/features/rt/printk-relocate-printk_delay-and-vprintk_default.patch b/features/rt/printk-relocate-printk_delay-and-vprintk_default.patch new file mode 100644 index 00000000..3e26bd6f --- /dev/null +++ b/features/rt/printk-relocate-printk_delay-and-vprintk_default.patch @@ -0,0 +1,88 @@ +From d517c77fcda22109a0cfd3bd55312c4404eb3206 Mon Sep 17 00:00:00 2001 +From: John Ogness <john.ogness@linutronix.de> +Date: Mon, 30 Nov 2020 01:42:03 +0106 +Subject: [PATCH 026/191] printk: relocate printk_delay() and vprintk_default() + +Move printk_delay() and vprintk_default() "as is" further up so that +they can be used by new functions in an upcoming commit. + +Signed-off-by: John Ogness <john.ogness@linutronix.de> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + kernel/printk/printk.c | 40 ++++++++++++++++++++-------------------- + 1 file changed, 20 insertions(+), 20 deletions(-) + +diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c +index 5af6f757818f..84fae4f08634 100644 +--- a/kernel/printk/printk.c ++++ b/kernel/printk/printk.c +@@ -1725,6 +1725,20 @@ SYSCALL_DEFINE3(syslog, int, type, char __user *, buf, int, len) + return do_syslog(type, buf, len, SYSLOG_FROM_READER); + } + ++int printk_delay_msec __read_mostly; ++ ++static inline void printk_delay(void) ++{ ++ if (unlikely(printk_delay_msec)) { ++ int m = printk_delay_msec; ++ ++ while (m--) { ++ mdelay(1); ++ touch_nmi_watchdog(); ++ } ++ } ++} ++ + /* + * Special console_lock variants that help to reduce the risk of soft-lockups. + * They allow to pass console_lock to another printk() call using a busy wait. +@@ -1968,20 +1982,6 @@ static void printk_exit_irqrestore(unsigned long flags) + local_irq_restore(flags); + } + +-int printk_delay_msec __read_mostly; +- +-static inline void printk_delay(void) +-{ +- if (unlikely(printk_delay_msec)) { +- int m = printk_delay_msec; +- +- while (m--) { +- mdelay(1); +- touch_nmi_watchdog(); +- } +- } +-} +- + static inline u32 printk_caller_id(void) + { + return in_task() ? task_pid_nr(current) : +@@ -2214,18 +2214,18 @@ asmlinkage int vprintk_emit(int facility, int level, + } + EXPORT_SYMBOL(vprintk_emit); + +-asmlinkage int vprintk(const char *fmt, va_list args) +-{ +- return vprintk_func(fmt, args); +-} +-EXPORT_SYMBOL(vprintk); +- + int vprintk_default(const char *fmt, va_list args) + { + return vprintk_emit(0, LOGLEVEL_DEFAULT, NULL, fmt, args); + } + EXPORT_SYMBOL_GPL(vprintk_default); + ++asmlinkage int vprintk(const char *fmt, va_list args) ++{ ++ return vprintk_func(fmt, args); ++} ++EXPORT_SYMBOL(vprintk); ++ + /** + * printk - print a kernel message + * @fmt: format string +-- +2.19.1 + |