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| author | Joe Perches <joe@perches.com> | 2012-07-30 14:40:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-30 17:25:14 -0700 |
| commit | 088a52aac810655c1db1e40331e4936946701e9c (patch) | |
| tree | 51ad8938a70c0bd3a08c74379dbec3107037d602 | |
| parent | 04d2c8c83d0e3ac5f78aeede51babb3236200112 (diff) | |
| download | linux-088a52aac810655c1db1e40331e4936946701e9c.tar.gz linux-088a52aac810655c1db1e40331e4936946701e9c.tar.bz2 linux-088a52aac810655c1db1e40331e4936946701e9c.zip | |
printk: only look for prefix levels in kernel messages
vprintk_emit() prefix parsing should only be done for internal kernel
messages. This allows existing behavior to be kept in all cases.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | kernel/printk.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/kernel/printk.c b/kernel/printk.c index 0d882a2f231e..6a76ab9d4476 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1487,7 +1487,6 @@ asmlinkage int vprintk_emit(int facility, int level, size_t text_len; enum log_flags lflags = 0; unsigned long flags; - int kern_level; int this_cpu; int printed_len = 0; @@ -1543,21 +1542,24 @@ asmlinkage int vprintk_emit(int facility, int level, lflags |= LOG_NEWLINE; } - /* strip syslog prefix and extract log level or control flags */ - kern_level = printk_get_level(text); - if (kern_level) { - const char *end_of_header = printk_skip_level(text); - switch (kern_level) { - case '0' ... '7': - if (level == -1) - level = kern_level - '0'; - case 'd': /* KERN_DEFAULT */ - lflags |= LOG_PREFIX; - case 'c': /* KERN_CONT */ - break; + /* strip kernel syslog prefix and extract log level or control flags */ + if (facility == 0) { + int kern_level = printk_get_level(text); + + if (kern_level) { + const char *end_of_header = printk_skip_level(text); + switch (kern_level) { + case '0' ... '7': + if (level == -1) + level = kern_level - '0'; + case 'd': /* KERN_DEFAULT */ + lflags |= LOG_PREFIX; + case 'c': /* KERN_CONT */ + break; + } + text_len -= end_of_header - text; + text = (char *)end_of_header; } - text_len -= end_of_header - text; - text = (char *)end_of_header; } if (level == -1) |