[PATCH 2/3] pinctrl: remove superfluous optimization in pinctrl_select_state_locked

From: Richard Genoud
Date: Thu Mar 28 2013 - 07:56:17 EST


As Stephen Warren suggested, checking first if the setting->node entry
is the first in the list or not is superfluous, as it is checked again
in the list_for_each_entry bellow.
So, remove it, the code will be simpler and lighter !

Signed-off-by: Richard Genoud <richard.genoud@xxxxxxxxx>
---
If can also be squashed whit commit:
3102a76cfbf9ac4ae0cf54c7452f7ba4292a4760
"pinctrl: disable and free setting in select_state in case of error"
(But there will be a conflict on "if (old_state)" vs "FIXME comment")

drivers/pinctrl/core.c | 10 +---------
1 files changed, 1 insertions(+), 9 deletions(-)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index b98a275..7c34937 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -923,20 +923,12 @@ static int pinctrl_select_state_locked(struct pinctrl *p,
unapply_new_state:
dev_err(p->dev, "Error applying setting, reverse things back\n");

- /*
- * If the loop stopped on the 1st entry, nothing has been enabled,
- * so jump directly to the 2nd phase
- */
- if (list_entry(&setting->node, typeof(*setting), node) ==
- list_first_entry(&state->settings, typeof(*setting), node))
- goto reapply_old_state;
-
list_for_each_entry(setting2, &state->settings, node) {
if (&setting2->node == &setting->node)
break;
pinctrl_free_setting(true, setting2);
}
-reapply_old_state:
+
if (old_state) {
list_for_each_entry(setting, &old_state->settings, node) {
bool found = false;
--
1.7.2.5

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