diff mbox series

[v3,3/3] pinctrl: intel: simplify exit path of ->gpio_request_enable() hook

Message ID 20230613085054.10976-4-raag.jadav@intel.com
State New
Headers show
Series Minor improvements for Intel pinctrl | expand

Commit Message

Raag Jadav June 13, 2023, 8:50 a.m. UTC 
Simplify exit path of ->gpio_request_enable() hook and save a few bytes.

add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-36 (-36)
Function                                     old     new   delta
intel_gpio_request_enable                    186     150     -36
Total: Before=10453, After=10417, chg -0.34%

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

Comments

Andy Shevchenko June 13, 2023, 3:38 p.m. UTC | #1 
On Tue, Jun 13, 2023 at 02:20:54PM +0530, Raag Jadav wrote:
> Simplify exit path of ->gpio_request_enable() hook and save a few bytes.
> 
> add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-36 (-36)
> Function                                     old     new   delta
> intel_gpio_request_enable                    186     150     -36
> Total: Before=10453, After=10417, chg -0.34%

I believe Mika's comment against patch 3 of v2 of this series applies here
as well, meaning this patch won't be accepted.

But let Mika express himself.
Andy Shevchenko June 19, 2023, 1:53 p.m. UTC | #2 
On Tue, Jun 13, 2023 at 02:20:54PM +0530, Raag Jadav wrote:
> Simplify exit path of ->gpio_request_enable() hook and save a few bytes.

> add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-36 (-36)
> Function                                     old     new   delta
> intel_gpio_request_enable                    186     150     -36
> Total: Before=10453, After=10417, chg -0.34%

While it seems a good footprint improvement, it looks like we do not use goto
in entire drivers/pinctrl/intel. So, I would keep it that way.
diff mbox series

Patch

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 3f78066b1837..43e17bc177d0 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -485,20 +485,19 @@  static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
 	struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
 	void __iomem *padcfg0;
 	unsigned long flags;
+	int ret = 0;
 
 	padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0);
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
 	if (!intel_pad_owned_by_host(pctrl, pin)) {
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
-		return -EBUSY;
+		ret = -EBUSY;
+		goto out_unlock;
 	}
 
-	if (!intel_pad_is_unlocked(pctrl, pin)) {
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
-		return 0;
-	}
+	if (!intel_pad_is_unlocked(pctrl, pin))
+		goto out_unlock;
 
 	/*
 	 * If pin is already configured in GPIO mode, we assume that
@@ -506,16 +505,15 @@  static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
 	 * potential glitches on the pin. Otherwise, for the pin in
 	 * alternative mode, consumer has to supply respective flags.
 	 */
-	if (intel_gpio_get_gpio_mode(padcfg0) == PADCFG0_PMODE_GPIO) {
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
-		return 0;
-	}
+	if (intel_gpio_get_gpio_mode(padcfg0) == PADCFG0_PMODE_GPIO)
+		goto out_unlock;
 
 	intel_gpio_set_gpio_mode(padcfg0);
 
+out_unlock:
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
-	return 0;
+	return ret;
 }
 
 static int intel_gpio_set_direction(struct pinctrl_dev *pctldev,