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[Qemu-devel] [PATCH/RFC v2 1/5] gpio: Export gpiod_{request, free}() to


From: Geert Uytterhoeven
Subject: [Qemu-devel] [PATCH/RFC v2 1/5] gpio: Export gpiod_{request, free}() to modular GPIO code
Date: Wed, 11 Sep 2019 16:38:54 +0200

Export the gpiod_request() and gpiod_free() symbols, so modular GPIO
library code can make use of these functions.

Signed-off-by: Geert Uytterhoeven <address@hidden>
---
ERROR: "gpiod_free" [drivers/gpio/gpiolib-fwd.ko] undefined!
ERROR: "gpiod_request" [drivers/gpio/gpiolib-fwd.ko] undefined!

Alternatives:
  - Force gpiolib-fwd builtin,
  - Call gpio_{,request,free}(desc_to_gpio(...)) instead, as the legacy
    functions are exported,
  - Call gpiod_put() instead of gpiod_free(), as the former is a simple
    exported wrapper around the latter.  Unfortunately there's no such
    alternative for gpiod_request().
---
 drivers/gpio/gpiolib.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index f1c1b5d4b00b40a7..dbecf266be5a5a2a 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2733,6 +2733,7 @@ int gpiod_request(struct gpio_desc *desc, const char 
*label)
 
        return ret;
 }
+EXPORT_SYMBOL_GPL(gpiod_request);
 
 static bool gpiod_free_commit(struct gpio_desc *desc)
 {
@@ -2777,6 +2778,7 @@ void gpiod_free(struct gpio_desc *desc)
                WARN_ON(extra_checks);
        }
 }
+EXPORT_SYMBOL_GPL(gpiod_free);
 
 /**
  * gpiochip_is_requested - return string iff signal was requested
-- 
2.17.1




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