On 11/06/2015 13:55, walter harms wrote:
Am 11.06.2015 10:03, schrieb Quentin Lambert:
The dev_attrs field of struct bus_type is going away, use dev_groups instead.
This converts the soundbus code to use the correct field.
Given that all other usages of the macro define the struct attribute
*xxx_attrs[] in the same file they assign the .dev_groups field, this patch
merges sysfs.c into core.c.
These modifications were made using Coccinelle.
Signed-off-by: Quentin Lambert <lambert.quentin@xxxxxxxxx>
---
Changes since v1:
- Fix the commit message to actually talk about soundbus rather than MDIO
- This version attempt to fix a problem resulting from the macro
ATTRIBUTE_GROUPS declaring the structure as static by merging sysfs.c into
core.c. I understand that this may not be the prefered solution since
Takashi suggested that adding a comment line to the previous version could
be acceptable.
sound/aoa/soundbus/Makefile | 2 -
sound/aoa/soundbus/core.c | 44 +++++++++++++++++++++++++++++++++++++++++-
sound/aoa/soundbus/soundbus.h | 2 -
sound/aoa/soundbus/sysfs.c | 42 ----------------------------------------
4 files changed, 44 insertions(+), 46 deletions(-)
--- a/sound/aoa/soundbus/Makefile
+++ b/sound/aoa/soundbus/Makefile
@@ -1,3 +1,3 @@
obj-$(CONFIG_SND_AOA_SOUNDBUS) += snd-aoa-soundbus.o
-snd-aoa-soundbus-objs := core.o sysfs.o
+snd-aoa-soundbus-objs := core.o
obj-$(CONFIG_SND_AOA_SOUNDBUS_I2S) += i2sbus/
--- a/sound/aoa/soundbus/core.c
+++ b/sound/aoa/soundbus/core.c
@@ -150,6 +150,48 @@ static int soundbus_device_resume(struct
#endif /* CONFIG_PM */
+#define soundbus_config_of_attr(field, format_string) \
+static ssize_t \
+field##_show (struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct soundbus_dev *mdev = to_soundbus_device (dev); \
+ return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
+}
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct soundbus_dev *sdev = to_soundbus_device(dev);
+ struct platform_device *of = &sdev->ofdev;
+ int length;
+
+ if (*sdev->modalias) {
+ strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1);
+ strcat(buf, "\n");
+ length = strlen(buf);
for my curiosity:
why not sprintf() ? almost any other code seems to use sprintf().
I wouldn't be able to justify that as this is part is simply a copy
paste from sysfs.c to core.c
Quentin
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