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-rw-r--r--drivers/tty/vt/vt.c6
-rw-r--r--include/linux/kern_levels.h2
-rw-r--r--include/linux/printk.h1
-rw-r--r--kernel/printk/printk.c29
-rw-r--r--security/selinux/ss/policydb.c4
5 files changed, 19 insertions, 23 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 2705ca960e92..145a75864e44 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3182,11 +3182,11 @@ static int do_bind_con_driver(const struct consw *csw, int first, int last,
pr_info("Console: switching ");
if (!deflt)
- printk("consoles %d-%d ", first+1, last+1);
+ printk(KERN_CONT "consoles %d-%d ", first+1, last+1);
if (j >= 0) {
struct vc_data *vc = vc_cons[j].d;
- printk("to %s %s %dx%d\n",
+ printk(KERN_CONT "to %s %s %dx%d\n",
vc->vc_can_do_color ? "colour" : "mono",
desc, vc->vc_cols, vc->vc_rows);
@@ -3195,7 +3195,7 @@ static int do_bind_con_driver(const struct consw *csw, int first, int last,
update_screen(vc);
}
} else
- printk("to %s\n", desc);
+ printk(KERN_CONT "to %s\n", desc);
retval = 0;
err:
diff --git a/include/linux/kern_levels.h b/include/linux/kern_levels.h
index c2ce155d83cc..f282d4e87258 100644
--- a/include/linux/kern_levels.h
+++ b/include/linux/kern_levels.h
@@ -20,7 +20,7 @@
* line that had no enclosing \n). Only to be used by core/arch code
* during early bootup (a continued line is not SMP-safe otherwise).
*/
-#define KERN_CONT ""
+#define KERN_CONT KERN_SOH "c"
/* integer equivalents of KERN_<LEVEL> */
#define LOGLEVEL_SCHED -2 /* Deferred messages from sched code
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 696a56be7d3e..eac1af8502bb 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -16,6 +16,7 @@ static inline int printk_get_level(const char *buffer)
switch (buffer[1]) {
case '0' ... '7':
case 'd': /* KERN_DEFAULT */
+ case 'c': /* KERN_CONT */
return buffer[1];
}
}
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index eea6dbc2d8cf..7b449802089a 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -655,11 +655,8 @@ static ssize_t msg_print_ext_header(char *buf, size_t size,
* better readable output. 'c' in the record flags mark the first
* fragment of a line, '+' the following.
*/
- if (msg->flags & LOG_CONT && !(prev_flags & LOG_CONT))
- cont = 'c';
- else if ((msg->flags & LOG_CONT) ||
- ((prev_flags & LOG_CONT) && !(msg->flags & LOG_PREFIX)))
- cont = '+';
+ if (msg->flags & LOG_CONT)
+ cont = (prev_flags & LOG_CONT) ? '+' : 'c';
return scnprintf(buf, size, "%u,%llu,%llu,%c;",
(msg->facility << 3) | msg->level, seq, ts_usec, cont);
@@ -1819,10 +1816,9 @@ asmlinkage int vprintk_emit(int facility, int level,
/* strip kernel syslog prefix and extract log level or control flags */
if (facility == 0) {
- int kern_level = printk_get_level(text);
+ int kern_level;
- if (kern_level) {
- const char *end_of_header = printk_skip_level(text);
+ while ((kern_level = printk_get_level(text)) != 0) {
switch (kern_level) {
case '0' ... '7':
if (level == LOGLEVEL_DEFAULT)
@@ -1830,14 +1826,13 @@ asmlinkage int vprintk_emit(int facility, int level,
/* fallthrough */
case 'd': /* KERN_DEFAULT */
lflags |= LOG_PREFIX;
+ break;
+ case 'c': /* KERN_CONT */
+ lflags |= LOG_CONT;
}
- /*
- * No need to check length here because vscnprintf
- * put '\0' at the end of the string. Only valid and
- * newly printed level is detected.
- */
- text_len -= end_of_header - text;
- text = (char *)end_of_header;
+
+ text_len -= 2;
+ text += 2;
}
}
@@ -1852,7 +1847,7 @@ asmlinkage int vprintk_emit(int facility, int level,
* Flush the conflicting buffer. An earlier newline was missing,
* or another task also prints continuation lines.
*/
- if (cont.len && (lflags & LOG_PREFIX || cont.owner != current))
+ if (cont.len && (!(lflags & LOG_CONT) || cont.owner != current))
cont_flush(LOG_NEWLINE);
/* buffer line if possible, otherwise store it right away */
@@ -1874,7 +1869,7 @@ asmlinkage int vprintk_emit(int facility, int level,
* a newline, flush and append the newline.
*/
if (cont.len) {
- if (cont.owner == current && !(lflags & LOG_PREFIX))
+ if (cont.owner == current && (lflags & LOG_CONT))
stored = cont_add(facility, level, text,
text_len);
cont_flush(LOG_NEWLINE);
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 992a31530825..bb9720b96c30 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -527,9 +527,9 @@ static int policydb_index(struct policydb *p)
printk(KERN_DEBUG "SELinux: %d users, %d roles, %d types, %d bools",
p->p_users.nprim, p->p_roles.nprim, p->p_types.nprim, p->p_bools.nprim);
if (p->mls_enabled)
- printk(", %d sens, %d cats", p->p_levels.nprim,
+ printk(KERN_CONT ", %d sens, %d cats", p->p_levels.nprim,
p->p_cats.nprim);
- printk("\n");
+ printk(KERN_CONT "\n");
printk(KERN_DEBUG "SELinux: %d classes, %d rules\n",
p->p_classes.nprim, p->te_avtab.nel);