linux-kernel - [PATCH] Pinctrl: core: export pinctrl_provide

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Message-ID: <20251028061345.3885632-1-gary.yang@cixtech.com>
Date: Tue, 28 Oct 2025 14:13:45 +0800
From: Gary Yang <gary.yang@...tech.com>
To: linus.walleij@...aro.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: linux-gpio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	cix-kernel-upstream@...tech.com,
	sfr@...b.auug.org.au,
	Gary Yang <gary.yang@...tech.com>
Subject: [PATCH] Pinctrl: core: export pinctrl_provide_dummies() to fix build error

If a pinctrl driver uses pinctrl_provide_dummies() interface, and

is built as a module, then an error occur as follow:

ERROR: modpost: "pinctrl_provide_dummies" [drivers/pinctrl/cix/pinctrl-sky1-base.ko] undefined!
make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1
make[1]: *** [/home/gary/workspace/upstream/kernel_upstream/Makefile:1960: modpost] Error 2
make: *** [Makefile:248: __sub-make] Error 2

Signed-off-by: Gary Yang <gary.yang@...tech.com>
---
 drivers/pinctrl/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index c5dbf4e9db84..acf4a86fb5cd 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -70,6 +70,7 @@ void pinctrl_provide_dummies(void)
 {
 	pinctrl_dummy_state = true;
 }
+EXPORT_SYMBOL_GPL(pinctrl_provide_dummies);
 
 const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev)
 {
-- 
2.49.0