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Subject[PATCH 2/5] kernel/time/clocksource.c: Use list_for_each_entry instead of list_for_each
kernel/time/clocksource.c: Convert list_for_each to
list_for_each_entry in clocksource_resume(),
sysfs_override_clocksource() and show_available_clocksources()

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>

--

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 51b6a6a..c8a9d13 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -207,15 +207,12 @@ static inline void clocksource_resume_watchdog(void) { }
*/
void clocksource_resume(void)
{
- struct list_head *tmp;
+ struct clocksource *cs;
unsigned long flags;

spin_lock_irqsave(&clocksource_lock, flags);

- list_for_each(tmp, &clocksource_list) {
- struct clocksource *cs;
-
- cs = list_entry(tmp, struct clocksource, list);
+ list_for_each_entry(cs, &clocksource_list, list) {
if (cs->resume)
cs->resume();
}
@@ -369,7 +366,6 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev,
const char *buf, size_t count)
{
struct clocksource *ovr = NULL;
- struct list_head *tmp;
size_t ret = count;
int len;

@@ -389,12 +385,11 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev,

len = strlen(override_name);
if (len) {
+ struct clocksource *cs;
+
ovr = clocksource_override;
/* try to select it: */
- list_for_each(tmp, &clocksource_list) {
- struct clocksource *cs;
-
- cs = list_entry(tmp, struct clocksource, list);
+ list_for_each_entry(cs, &clocksource_list, list) {
if (strlen(cs->name) == len &&
!strcmp(cs->name, override_name))
ovr = cs;
@@ -422,14 +417,11 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev,
static ssize_t
sysfs_show_available_clocksources(struct sys_device *dev, char *buf)
{
- struct list_head *tmp;
+ struct clocksource *src;
char *curr = buf;

spin_lock_irq(&clocksource_lock);
- list_for_each(tmp, &clocksource_list) {
- struct clocksource *src;
-
- src = list_entry(tmp, struct clocksource, list);
+ list_for_each_entry(src, &clocksource_list, list) {
curr += sprintf(curr, "%s ", src->name);
}
spin_unlock_irq(&clocksource_lock);
--
Matthias Kaehlcke
Linux Application Developer
Barcelona

The assumption that what currently exists must necessarily
exist is the acid that corrodes all visionary thinking
.''`.
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