On 12.01.2016 02:00, Guenter Roeck wrote:
> Since commit 0f4630f3720e ("gpio: generic: factor into gpio_chip struct"),
> all users of struct bgpio_pdata depend on GPIO_GENERIC.
>
> This results in the following build error.
>
> arch/arm/mach-s3c64xx/mach-crag6410.c:270:3: warning:
> excess elements in struct initializer
> arch/arm/mach-s3c64xx/mach-crag6410.c:270:3: warning:
> (near initialization for '(anonymous)')
> arch/arm/mach-s3c64xx/mach-crag6410.c:271:2: error:
> invalid use of undefined type 'struct bgpio_pdata'
>
> Fixes: 0f4630f3720e ("gpio: generic: factor into gpio_chip struct")
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> I don't know if this is the correct way to fix this problem.
> If not, please consider this to be a bug report.
>
> arch/arm/mach-s3c64xx/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
Thanks for the report! I think that:
1. Other boards using the bgpio_pdata might be also affected:
mach-clps711x/board-autcpu12.c
mach-clps711x/board-p720t.c
mach-imx/mach-mx21ads.c
2. The boards does not directly depend on the GPIO_GENERIC.
If GPIO_GENERIC is not selected then it still might create
a basic-mmio-gpio device. The device of course won't be in
such case supported by any driver.
Instead to solve the error the structure should be
always visible so:
-- >8 --
From: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Date: Tue, 12 Jan 2016 09:46:06 +0900
Subject: [PATCH] gpio: generic: Fix build error of missing bgpio_pdata
declaration
Commit 0f4630f3720e ("gpio: generic: factor into gpio_chip struct")
introduced struct bgpio_pdata along with users but made the declaration
hidden by CONFIG_GPIO_GENERIC.
This results in the following build error:
arch/arm/mach-s3c64xx/mach-crag6410.c:270:3: warning: excess elements in struct initializer
arch/arm/mach-s3c64xx/mach-crag6410.c:270:3: warning: (near initialization for '(anonymous)')
arch/arm/mach-s3c64xx/mach-crag6410.c:271:2: error: invalid use of undefined type 'struct bgpio_pdata'
Fixes: 0f4630f3720e ("gpio: generic: factor into gpio_chip struct")
Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---
include/linux/gpio/driver.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index e2d05fd0e6e3..7b9054366e7a 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -220,14 +220,13 @@ static inline void *gpiochip_get_data(struct gpio_chip *chip)
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
-#if IS_ENABLED(CONFIG_GPIO_GENERIC)
-
struct bgpio_pdata {
const char *label;
int base;
int ngpio;
};
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
int bgpio_init(struct gpio_chip *gc, struct device *dev,
unsigned long sz, void __iomem *dat, void __iomem *set,
void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
--
1.9.1
--
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