diff options
| author | Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-07-06 13:15:19 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-07-25 17:45:40 +0200 |
| commit | 39ade048a32ea653b94dcfbf816b0b13a6be8a33 (patch) | |
| tree | 3f6c7688ede853fc018a122564a0430d2a221df4 /arch/parisc/kernel/cache.c | |
| parent | ac5e666951507ceb1da2ed85c4f5c7bb88bec06e (diff) | |
| download | linux-39ade048a32ea653b94dcfbf816b0b13a6be8a33.tar.bz2 | |
highmem: Make __kunmap_{local,atomic}() take const void pointer
__kunmap_ {local,atomic}() currently take pointers to void. However, this
is semantically incorrect, since these functions do not change the memory
their arguments point to.
Therefore, make this semantics explicit by modifying the
__kunmap_{local,atomic}() prototypes to take pointers to const void.
As a side effect, compilers may produce more efficient code.
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Suggested-by: David Sterba <dsterba@suse.cz>
Suggested-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'arch/parisc/kernel/cache.c')
| -rw-r--r-- | arch/parisc/kernel/cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index a9bc578e4c52..993999a65e54 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -549,7 +549,7 @@ extern void purge_kernel_dcache_page_asm(unsigned long); extern void clear_user_page_asm(void *, unsigned long); extern void copy_user_page_asm(void *, void *, unsigned long); -void flush_kernel_dcache_page_addr(void *addr) +void flush_kernel_dcache_page_addr(const void *addr) { unsigned long flags; |