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seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro

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The DEFINE_SHOW_ATTRIBUTE() helper macro would be useful for current
users, which are many of them, and for new comers to decrease code
duplication.

Acked-by: Lee Jones <[email protected]>
Acked-by: Darren Hart (VMware) <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
This commit is contained in:
Andy Shevchenko 2018-01-22 18:05:43 +02:00
commit a08f06bb7a
4 changed files with 14 additions and 41 deletions
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14
drivers/mfd/ab8500-debugfs.c
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@ -1258,20 +1258,6 @@ static struct ab8500_prcmu_ranges ab8540_debug_ranges[AB8500_NUM_BANKS] = {
},
};
#define DEFINE_SHOW_ATTRIBUTE(__name) \
static int __name ## _open(struct inode *inode, struct file *file) \
{ \
return single_open(file, __name ## _show, inode->i_private); \
} \
\
static const struct file_operations __name ## _fops = { \
.owner = THIS_MODULE, \
.open = __name ## _open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
} \
static irqreturn_t ab8500_debug_handler(int irq, void *data)
{
char buf[16];