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debugfs: constify argument to debugfs_real_fops()

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seq_file users can only access const version of file pointer,
because the ->file member of struct seq_operations is marked
as such.  Make parameter to debugfs_real_fops() const.

CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: Nicolai Stange <nicstange@gmail.com>
CC: Christian Lamparter <chunkeey@gmail.com>
CC: LKML <linux-kernel@vger.kernel.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2016-11-03 17:12:06 +00:00 committed by David S. Miller
parent 13df4c666c
commit 68f929ff26
1 changed files with 2 additions and 1 deletions
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3
include/linux/debugfs.h
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@ -52,7 +52,8 @@ extern struct srcu_struct debugfs_srcu;
* Must only be called under the protection established by
* debugfs_use_file_start().
*/
static inline const struct file_operations *debugfs_real_fops(struct file *filp)
static inline const struct file_operations *
debugfs_real_fops(const struct file *filp)
__must_hold(&debugfs_srcu)
{
/*