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arm64: __clean_dcache_area_pop to take end parameter instead of size

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To be consistent with other functions with similar names and
functionality in cacheflush.h, cache.S, and cachetlb.rst, change
to specify the range in terms of start and end, as opposed to
start and size.

No functional change intended.

Reported-by: Will Deacon <will@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210524083001.2586635-15-tabba@google.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Fuad Tabba
2021-05-24 09:29:57 +01:00
committed by Will Deacon
parent 1f42faf1d2
commit f749448edb
4 changed files with 8 additions and 9 deletions
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4
arch/arm64/lib/uaccess_flushcache.c
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@@ -15,7 +15,7 @@ void memcpy_flushcache(void *dst, const void *src, size_t cnt)
* barrier to order the cache maintenance against the memcpy.
*/
memcpy(dst, src, cnt);
__clean_dcache_area_pop(dst, cnt);
__clean_dcache_area_pop((unsigned long)dst, (unsigned long)dst + cnt);
}
EXPORT_SYMBOL_GPL(memcpy_flushcache);
@@ -33,6 +33,6 @@ unsigned long __copy_user_flushcache(void *to, const void __user *from,
rc = raw_copy_from_user(to, from, n);
/* See above */
__clean_dcache_area_pop(to, n - rc);
__clean_dcache_area_pop((unsigned long)to, (unsigned long)to + n - rc);
return rc;
}