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| author | Rob Ward <robert.ward114@googlemail.com> | 2014-12-07 15:40:34 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-12 05:04:11 -0800 |
| commit | a8c912522b547b3512cd25ccb8d507cd75264c84 (patch) | |
| tree | 51d178c9873a7f17779c06339f49b87d61a96f2d /drivers/char/mem.c | |
| parent | 73f0718e74e25ac7381450a7a21257b8f26f43f0 (diff) | |
| download | linux-a8c912522b547b3512cd25ccb8d507cd75264c84.tar.gz linux-a8c912522b547b3512cd25ccb8d507cd75264c84.tar.bz2 linux-a8c912522b547b3512cd25ccb8d507cd75264c84.zip | |
drivers: char: mem: Simplify DEVKMEM configuration
Simplify the use of CONFIG_DEVKMEM by making the kmem_fops
so that it is __maybe_unused.
This enabled the multiple #ifdef's used for this structure
to be removed and brings it in line with the use of CONFIG_DEVMEM
This change should introduce no functional changes.
Signed-off-by: Rob Ward <robert.ward114@googlemail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/mem.c')
| -rw-r--r-- | drivers/char/mem.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 7d6778437be0..17b21396e7f9 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -341,7 +341,6 @@ static int mmap_mem(struct file *file, struct vm_area_struct *vma) return 0; } -#ifdef CONFIG_DEVKMEM static int mmap_kmem(struct file *file, struct vm_area_struct *vma) { unsigned long pfn; @@ -362,9 +361,7 @@ static int mmap_kmem(struct file *file, struct vm_area_struct *vma) vma->vm_pgoff = pfn; return mmap_mem(file, vma); } -#endif -#ifdef CONFIG_DEVKMEM /* * This function reads the *virtual* memory as seen by the kernel. */ @@ -544,7 +541,6 @@ static ssize_t write_kmem(struct file *file, const char __user *buf, *ppos = p; return virtr + wrote ? : err; } -#endif #ifdef CONFIG_DEVPORT static ssize_t read_port(struct file *file, char __user *buf, @@ -724,8 +720,7 @@ static const struct file_operations __maybe_unused mem_fops = { .get_unmapped_area = get_unmapped_area_mem, }; -#ifdef CONFIG_DEVKMEM -static const struct file_operations kmem_fops = { +static const struct file_operations __maybe_unused kmem_fops = { .llseek = memory_lseek, .read = read_kmem, .write = write_kmem, @@ -733,7 +728,6 @@ static const struct file_operations kmem_fops = { .open = open_kmem, .get_unmapped_area = get_unmapped_area_mem, }; -#endif static const struct file_operations null_fops = { .llseek = null_lseek, |