diff options
| author | Eliad Peller <eliad@wizery.com> | 2010-12-12 12:15:35 +0200 |
|---|---|---|
| committer | Luciano Coelho <luciano.coelho@nokia.com> | 2010-12-15 15:41:36 +0200 |
| commit | 17c1755c24d83f9fd0509b64c76cc43fc60cc642 (patch) | |
| tree | 15d4287053529b89f65a7ef75041880efad180c1 /drivers/net/wireless/wl12xx/debugfs.c | |
| parent | ea559b460509b241cc1a3f36eebe0b2b634b3cf2 (diff) | |
| download | kernel_samsung_smdk4412-17c1755c24d83f9fd0509b64c76cc43fc60cc642.zip kernel_samsung_smdk4412-17c1755c24d83f9fd0509b64c76cc43fc60cc642.tar.gz kernel_samsung_smdk4412-17c1755c24d83f9fd0509b64c76cc43fc60cc642.tar.bz2 | |
wl12xx: allow runtime changing of debug_level
Currently, the debug level is set in compilation time (by the DEBUG_LEVEL
const). This method has the advantage of compiling only the relevant
messages, while optimizing out the unused ones.
In order to allow runtime control over the debug_level, while optimizing
out messages when debug messages are not needed, we combine some methods:
1. use dynamic_debug (pr_debug) rather then printk.
2. add debug_level module param in order to set debug level during insmod.
3. add debug_level sysfs file in order to allow dynamic control over the
debug level.
Since patches for pr_debug_hex_dump() implementation haven't been applied yet,
we are still temporarly using print_hex_dump().
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/debugfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c index 8106a6c..c2cd580 100644 --- a/drivers/net/wireless/wl12xx/debugfs.c +++ b/drivers/net/wireless/wl12xx/debugfs.c @@ -401,6 +401,11 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl) DEBUGFS_ADD(gpio_power, wl->rootdir); + entry = debugfs_create_x32("debug_level", 0600, wl->rootdir, + &wl12xx_debug_level); + if (!entry || IS_ERR(entry)) + goto err; + return 0; err: |