This patch removes the driver attribute add_link. It is not needed, because
the link management is now done via configfs.
Signed-off-by: Christian Gromm <christian.gr...@microchip.com>
---
v2:
v3:
drivers/staging/most/core.c | 61 ---------------------------------------------
1 file changed, 61 deletions(-)
diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c
index e0a6806..df1d774 100644
--- a/drivers/staging/most/core.c
+++ b/drivers/staging/most/core.c
@@ -616,65 +616,6 @@ inline int link_channel_to_component(struct most_channel
*c,
return 0;
}
-/**
- * add_link_store - store function for add_link attribute
- * @drv: device driver
- * @buf: buffer
- * @len: buffer length
- *
- * This parses the string given by buf and splits it into
- * four substrings. Note: last substring is optional. In case a cdev
- * component is loaded the optional 4th substring will make up the name of
- * device node in the /dev directory. If omitted, the device node will
- * inherit the channel's name within sysfs.
- *
- * Searches for (device, channel) pair and probes the component
- *
- * Example:
- * (1) echo "mdev0:ch6:cdev:my_rxchannel" >add_link
- * (2) echo "mdev1:ep81:cdev" >add_link
- *
- * (1) would create the device node /dev/my_rxchannel
- * (2) would create the device node /dev/mdev1-ep81
- */
-static ssize_t add_link_store(struct device_driver *drv,
- const char *buf,
- size_t len)
-{
- struct most_channel *c;
- struct core_component *comp;
- char buffer[STRING_SIZE];
- char *mdev;
- char *mdev_ch;
- char *comp_name;
- char *comp_param;
- char devnod_buf[STRING_SIZE];
- int ret;
- size_t max_len = min_t(size_t, len + 1, STRING_SIZE);
-
- strlcpy(buffer, buf, max_len);
- ret = split_string(buffer, &mdev, &mdev_ch, &comp_name, &comp_param);
- if (ret)
- return ret;
- comp = match_component(comp_name);
- if (!comp)
- return -ENODEV;
- if (!comp_param || *comp_param == 0) {
- snprintf(devnod_buf, sizeof(devnod_buf), "%s-%s", mdev,
- mdev_ch);
- comp_param = devnod_buf;
- }
-
- c = get_channel(mdev, mdev_ch);
- if (!c)
- return -ENODEV;
-
- ret = link_channel_to_component(c, comp, "name", comp_param);
- if (ret)
- return ret;
- return len;
-}
-
int most_set_cfg_buffer_size(char *mdev, char *mdev_ch, u16 val)
{
struct most_channel *c = get_channel(mdev, mdev_ch);
@@ -863,13 +804,11 @@ int most_remove_link(char *mdev, char *mdev_ch, char
*comp_name)
static DRIVER_ATTR_RO(links);
static DRIVER_ATTR_RO(components);
-static DRIVER_ATTR_WO(add_link);
static DRIVER_ATTR_WO(remove_link);
static struct attribute *mc_attrs[] = {
DRV_ATTR(links),
DRV_ATTR(components),
- DRV_ATTR(add_link),
DRV_ATTR(remove_link),
NULL,
};
--
2.7.4
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