This simplify code for generating sdio config attributes and allows easily
define new sdio attributes.
Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
---
drivers/mmc/core/sdio_bus.c | 20 ++++++--------------
1 file changed, 6 insertions(+), 14 deletions(-)
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 3cc928282af7..2384829c8fb2 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -28,29 +28,21 @@
#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
/* show configuration fields */
-#define sdio_config_attr(field, format_string) \
+#define sdio_config_attr(field, format_string, args...) \
static ssize_t \
field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct sdio_func *func; \
\
func = dev_to_sdio_func (dev); \
- return sprintf (buf, format_string, func->field); \
+ return sprintf(buf, format_string, args); \
} \
static DEVICE_ATTR_RO(field)
-sdio_config_attr(class, "0x%02x\n");
-sdio_config_attr(vendor, "0x%04x\n");
-sdio_config_attr(device, "0x%04x\n");
-
-static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct sdio_func *func = dev_to_sdio_func (dev);
-
- return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n",
- func->class, func->vendor, func->device);
-}
-static DEVICE_ATTR_RO(modalias);
+sdio_config_attr(class, "0x%02x\n", func->class);
+sdio_config_attr(vendor, "0x%04x\n", func->vendor);
+sdio_config_attr(device, "0x%04x\n", func->device);
+sdio_config_attr(modalias, "sdio:c%02Xv%04Xd%04X\n", func->class, func->vendor, func->device);
static struct attribute *sdio_dev_attrs[] = {
&dev_attr_class.attr,
--
2.20.1
