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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-16 13:35:08 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-18 15:04:58 +0300 |
| commit | a41231d52ff755597d67ce83bb36e16c47dfec91 (patch) | |
| tree | 260275d0ad83390d1fd76972273d9e7c70842346 /include/media/v4l2-common.h | |
| parent | 680d87c0a9e3aa4a13ac54aa968173c8623c0f47 (diff) | |
| download | linux-a41231d52ff755597d67ce83bb36e16c47dfec91.tar.xz | |
[media] v4l2-common: add a debug macro to be used with dev_foo()
Currently, there's a mess at the V4L2 printk macros: some drivers
use their own macros, others use pr_foo() or v4l_foo() macros,
while more modern drivers use dev_foo() macros.
The best is to get rid of v4l_foo() macros, as they can be
replaced by either dev_foo() or pr_foo(). Yet, such change can
be disruptive, as dev_foo() cannot use KERN_CONT. So, the best
is to do such change driver by driver.
There are replacements for most v4l_foo() macros, but it lacks
a way to enable debug messages per level. So, add such macro,
in order to make the conversion easier.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'include/media/v4l2-common.h')
| -rw-r--r-- | include/media/v4l2-common.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 350cbf9fb10e..aac8b7b6e691 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -55,6 +55,13 @@ v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \ } while (0) +/* Add a version of v4l_dbg to be used on drivers using dev_foo() macros */ +#define dev_dbg_lvl(__dev, __level, __debug, __fmt, __arg...) \ + do { \ + if (__debug >= (__level)) \ + dev_printk(KERN_DEBUG, __dev, __fmt, ##__arg); \ + } while (0) + /* ------------------------------------------------------------------------- */ /* These printk constructs can be used with v4l2_device and v4l2_subdev */ |