diff options
| author | Joe Perches <joe@perches.com> | 2014-12-10 15:45:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 17:41:10 -0800 |
| commit | 1dc6244bd6d4f62239487fb0befc41c63e117290 (patch) | |
| tree | e4297d59fc7ee4130059ad082ac7cf206195d408 /kernel | |
| parent | 9e3961a0979817c612b10b2da4f3045ec9faa779 (diff) | |
printk: remove used-once early_vprintk
Eliminate the unlikely possibility of message interleaving for
early_printk/early_vprintk use.
early_vprintk can be done via the %pV extension so remove this
unnecessary function and change early_printk to have the equivalent
vprintk code.
All uses of early_printk already end with a newline so also remove the
unnecessary newline from the early_printk function.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/printk/printk.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index ced2b84b1cb7..4815c98ae175 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1881,23 +1881,20 @@ static size_t cont_print_text(char *text, size_t size) { return 0; } #ifdef CONFIG_EARLY_PRINTK struct console *early_console; -void early_vprintk(const char *fmt, va_list ap) -{ - if (early_console) { - char buf[512]; - int n = vscnprintf(buf, sizeof(buf), fmt, ap); - - early_console->write(early_console, buf, n); - } -} - asmlinkage __visible void early_printk(const char *fmt, ...) { va_list ap; + char buf[512]; + int n; + + if (!early_console) + return; va_start(ap, fmt); - early_vprintk(fmt, ap); + n = vscnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); + + early_console->write(early_console, buf, n); } #endif |