The patch titled
Use WARN() in lib/
has been added to the -mm tree. Its filename is
use-warn-in-lib.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: Use WARN() in lib/
From: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes
part of the warning section for better reporting/collection. In addition, one
of the if() clauses collapes into the WARN() entirely now.
Signed-off-by: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/debugobjects.c | 15 +++++----------
lib/iomap.c | 3 +--
lib/kobject_uevent.c | 6 ++----
lib/plist.c | 13 +++++++------
4 files changed, 15 insertions(+), 22 deletions(-)
diff -puN lib/debugobjects.c~use-warn-in-lib lib/debugobjects.c
--- a/lib/debugobjects.c~use-warn-in-lib
+++ a/lib/debugobjects.c
@@ -205,9 +205,8 @@ static void debug_print_object(struct de
if (limit < 5 && obj->descr != descr_test) {
limit++;
- printk(KERN_ERR "ODEBUG: %s %s object type: %s\n", msg,
+ WARN(1, KERN_ERR "ODEBUG: %s %s object type: %s\n", msg,
obj_states[obj->state], obj->descr->name);
- WARN_ON(1);
}
debug_objects_warnings++;
}
@@ -733,26 +732,22 @@ check_results(void *addr, enum debug_obj
obj = lookup_object(addr, db);
if (!obj && state != ODEBUG_STATE_NONE) {
- printk(KERN_ERR "ODEBUG: selftest object not found\n");
- WARN_ON(1);
+ WARN(1, KERN_ERR "ODEBUG: selftest object not found\n");
goto out;
}
if (obj && obj->state != state) {
- printk(KERN_ERR "ODEBUG: selftest wrong state: %d != %d\n",
+ WARN(1, KERN_ERR "ODEBUG: selftest wrong state: %d != %d\n",
obj->state, state);
- WARN_ON(1);
goto out;
}
if (fixups != debug_objects_fixups) {
- printk(KERN_ERR "ODEBUG: selftest fixups failed %d != %d\n",
+ WARN(1, KERN_ERR "ODEBUG: selftest fixups failed %d != %d\n",
fixups, debug_objects_fixups);
- WARN_ON(1);
goto out;
}
if (warnings != debug_objects_warnings) {
- printk(KERN_ERR "ODEBUG: selftest warnings failed %d != %d\n",
+ WARN(1, KERN_ERR "ODEBUG: selftest warnings failed %d != %d\n",
warnings, debug_objects_warnings);
- WARN_ON(1);
goto out;
}
res = 0;
diff -puN lib/iomap.c~use-warn-in-lib lib/iomap.c
--- a/lib/iomap.c~use-warn-in-lib
+++ a/lib/iomap.c
@@ -40,8 +40,7 @@ static void bad_io_access(unsigned long
static int count = 10;
if (count) {
count--;
- printk(KERN_ERR "Bad IO access at port %#lx (%s)\n", port, access);
- WARN_ON(1);
+ WARN(1, KERN_ERR "Bad IO access at port %#lx (%s)\n", port, access);
}
}
diff -puN lib/kobject_uevent.c~use-warn-in-lib lib/kobject_uevent.c
--- a/lib/kobject_uevent.c~use-warn-in-lib
+++ a/lib/kobject_uevent.c
@@ -285,8 +285,7 @@ int add_uevent_var(struct kobj_uevent_en
int len;
if (env->envp_idx >= ARRAY_SIZE(env->envp)) {
- printk(KERN_ERR "add_uevent_var: too many keys\n");
- WARN_ON(1);
+ WARN(1, KERN_ERR "add_uevent_var: too many keys\n");
return -ENOMEM;
}
@@ -297,8 +296,7 @@ int add_uevent_var(struct kobj_uevent_en
va_end(args);
if (len >= (sizeof(env->buf) - env->buflen)) {
- printk(KERN_ERR "add_uevent_var: buffer size too small\n");
- WARN_ON(1);
+ WARN(1, KERN_ERR "add_uevent_var: buffer size too small\n");
return -ENOMEM;
}
diff -puN lib/plist.c~use-warn-in-lib lib/plist.c
--- a/lib/plist.c~use-warn-in-lib
+++ a/lib/plist.c
@@ -31,12 +31,13 @@
static void plist_check_prev_next(struct list_head *t, struct list_head *p,
struct list_head *n)
{
- if (n->prev != p || p->next != n) {
- printk("top: %p, n: %p, p: %p\n", t, t->next, t->prev);
- printk("prev: %p, n: %p, p: %p\n", p, p->next, p->prev);
- printk("next: %p, n: %p, p: %p\n", n, n->next, n->prev);
- WARN_ON(1);
- }
+ WARN(n->prev != p || p->next != n,
+ "top: %p, n: %p, p: %p\n"
+ "prev: %p, n: %p, p: %p\n"
+ "next: %p, n: %p, p: %p\n",
+ t, t->next, t->prev,
+ p, p->next, p->prev,
+ n, n->next, n->prev);
}
static void plist_check_list(struct list_head *top)
_
Patches currently in -mm which might be from arjan@xxxxxxxxxxxxxxx are
linux-next.patch
via-velocity-fix-sleep-with-spinlock-bug-during-mtu-change.patch
rename-warn-to-warning-to-clear-the-namespace.patch
add-a-warn-macro-this-is-warn_on-printk-arguments.patch
kernel-irq-managec-replace-a-printk-warn_on-to-a-warn.patch
example-use-of-warn.patch
use-warn-in-kernel-irq-managec.patch
use-warn-in-kernel-panicc.patch
use-warn-in-mm-vmallocc.patch
use-warn-in-kernel-lockdepc.patch
use-warn-in-kernel-irq-chipc.patch
use-warn-in-arch-x86-mm-ioremapc.patch
use-warn-in-arch-x86-mm-pageattrc.patch
use-warn-in-arch-x86-kernel.patch
use-warn-in-block.patch
use-warn-in-drivers-base.patch
use-warn-in-lib.patch
use-warn-in-fs.patch
usr-warn-in-fs-sysfs.patch
use-warn-in-fs-proc.patch
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