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-rw-r--r--kernel/printk.c31
1 files changed, 22 insertions, 9 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index 5052b5497c67..a87770ce73a2 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -687,20 +687,33 @@ asmlinkage int vprintk(const char *fmt, va_list args)
687 sizeof(printk_buf) - printed_len, fmt, args); 687 sizeof(printk_buf) - printed_len, fmt, args);
688 688
689 689
690 p = printk_buf;
691
692 /* Do we have a loglevel in the string? */
693 if (p[0] == '<') {
694 unsigned char c = p[1];
695 if (c && p[2] == '>') {
696 switch (c) {
697 case '0' ... '7': /* loglevel */
698 current_log_level = c - '0';
699 if (!new_text_line) {
700 emit_log_char('\n');
701 new_text_line = 1;
702 }
703 /* Fallthrough - skip the loglevel */
704 case 'c': /* KERN_CONT */
705 p += 3;
706 break;
707 }
708 }
709 }
710
690 /* 711 /*
691 * Copy the output into log_buf. If the caller didn't provide 712 * Copy the output into log_buf. If the caller didn't provide
692 * appropriate log level tags, we insert them here 713 * appropriate log level tags, we insert them here
693 */ 714 */
694 for (p = printk_buf; *p; p++) { 715 for ( ; *p; p++) {
695 if (new_text_line) { 716 if (new_text_line) {
696 /* If a token, set current_log_level and skip over */
697 if (p[0] == '<' && p[1] >= '0' && p[1] <= '7' &&
698 p[2] == '>') {
699 current_log_level = p[1] - '0';
700 p += 3;
701 printed_len -= 3;
702 }
703
704 /* Always output the token */ 717 /* Always output the token */
705 emit_log_char('<'); 718 emit_log_char('<');
706 emit_log_char(current_log_level + '0'); 719 emit_log_char(current_log_level + '0');