From: He Zhe <[email protected]>
A hunk of code that was already removed from RT upstream was introduced by
the merger of v5.4.22 and cause the following build failures. Remove it.
kernel/printk/printk.c: In function 'register_console':
kernel/printk/printk.c:2530:3: error: implicit declaration of function
'logbuf_lock_irqsave'; did you mean 'xa_lock_irqsave'?
[-Werror=implicit-function-declaration]
2530 | logbuf_lock_irqsave(flags);
| ^~~~~~~~~~~~~~~~~~~
| xa_lock_irqsave
kernel/printk/printk.c:2530:23: error: 'flags' undeclared (first use in this
function)
2530 | logbuf_lock_irqsave(flags);
| ^~~~~
kernel/printk/printk.c:2530:23: note: each undeclared identifier is reported
only once for each function it appears in
CC arch/x86/entry/syscall_32.o
kernel/printk/printk.c:2540:3: error: 'exclusive_console' undeclared (first use
in this function)
2540 | exclusive_console = newcon;
| ^~~~~~~~~~~~~~~~~
kernel/printk/printk.c:2541:3: error: 'exclusive_console_stop_seq' undeclared
(first use in this function)
2541 | exclusive_console_stop_seq = console_seq;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/printk/printk.c:2541:32: error: 'console_seq' undeclared (first use in
this function); did you mean 'console_sem'?
2541 | exclusive_console_stop_seq = console_seq;
| ^~~~~~~~~~~
| console_sem
kernel/printk/printk.c:2543:3: error: 'console_idx' undeclared (first use in
this function); did you mean 'console_sem'?
2543 | console_idx = syslog_idx;
| ^~~~~~~~~~~
| console_sem
kernel/printk/printk.c:2543:17: error: 'syslog_idx' undeclared (first use in
this function); did you mean 'syslog_time'?
2543 | console_idx = syslog_idx;
| ^~~~~~~~~~
Signed-off-by: He Zhe <[email protected]>
---
kernel/printk/printk.c | 21 ---------------------
1 file changed, 21 deletions(-)
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 49e9e5450b51..0605a74ad76b 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2522,27 +2522,6 @@ void register_console(struct console *newcon)
if (newcon->flags & CON_EXTENDED)
nr_ext_console_drivers++;
- if (newcon->flags & CON_PRINTBUFFER) {
- /*
- * console_unlock(); will print out the buffered messages
- * for us.
- */
- logbuf_lock_irqsave(flags);
- /*
- * We're about to replay the log buffer. Only do this to the
- * just-registered console to avoid excessive message spam to
- * the already-registered consoles.
- *
- * Set exclusive_console with disabled interrupts to reduce
- * race window with eventual console_flush_on_panic() that
- * ignores console_lock.
- */
- exclusive_console = newcon;
- exclusive_console_stop_seq = console_seq;
- console_seq = syslog_seq;
- console_idx = syslog_idx;
- logbuf_unlock_irqrestore(flags);
- }
console_unlock();
console_sysfs_notify();
--
2.24.1
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