diff options
| author | Roland Dreier <roland@topspin.com> | 2005-04-18 21:57:33 -0700 |
|---|---|---|
| committer | Greg KH <greg@press.kroah.org> | 2005-04-18 21:57:33 -0700 |
| commit | a7a76cefc4b12bb6508afa4c77f11c2752cc365d (patch) | |
| tree | d9051a989583e172d662c15695906dc9fcb536f2 /include | |
| parent | 1694145854a309bebd12a5cce63c9b398304e3bb (diff) | |
| download | linux-rt-a7a76cefc4b12bb6508afa4c77f11c2752cc365d.tar.gz | |
[PATCH] debugfs: Reduce <linux/debugfs.h> dependencies
The current <linux/debugfs.h> include file is a little fragile in that
it is not self-contained and hence may cause compile warnings or
errors depending on the files included before it, the kernel config
and the architecture. This patch makes things a little more robust by:
- including <linux/types.h> to get definitions of u32, mode_t, and so on.
- forward declaring struct file_operations.
- including <linux/err.h> when CONFIG_DEBUG_FS is not set
The last change is particularly useful, as a kernel developer is
likely to build with debugfs always enabled and never see the build
breakage cased if debugfs is disabled.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/debugfs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index f7a7b86f6eef..dcf847cdb5ce 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -17,6 +17,10 @@ #include <linux/fs.h> +#include <linux/types.h> + +struct file_operations; + #if defined(CONFIG_DEBUG_FS) struct dentry *debugfs_create_file(const char *name, mode_t mode, struct dentry *parent, void *data, @@ -36,6 +40,9 @@ struct dentry *debugfs_create_bool(const char *name, mode_t mode, struct dentry *parent, u32 *value); #else + +#include <linux/err.h> + /* * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled * so users have a chance to detect if there was a real error or not. We don't |