diff options
| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-11-17 13:47:54 +0300 |
|---|---|---|
| committer | Conor Dooley <conor.dooley@microchip.com> | 2025-11-18 02:45:45 +0300 |
| commit | f49ae86483c494ddc793d889f6df5ea68d138569 (patch) | |
| tree | d52c2f926bd707c2f0beb2991c19e8170670c087 /include | |
| parent | d52341da4db0cd993d3549aa20cbdf063b412c3b (diff) | |
| download | linux-f49ae86483c494ddc793d889f6df5ea68d138569.tar.xz | |
memregion: Drop unused IORES_DESC_* parameter from cpu_cache_invalidate_memregion()
The res_desc parameter was originally introduced for documentation purposes
and with the idea that with HDM-DB CXL invalidation could be triggered from
the device. That has not come to pass and the continued existence of the
option is confusing when we add a range in the following patch which might
not be a strict subset of the res_desc. So avoid that confusion by dropping
the parameter.
Link: https://lore.kernel.org/linux-mm/686eedb25ed02_24471002e@dwillia2-xfh.jf.intel.com.notmuch/
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memregion.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/include/linux/memregion.h b/include/linux/memregion.h index c01321467789..945646bde825 100644 --- a/include/linux/memregion.h +++ b/include/linux/memregion.h @@ -26,8 +26,7 @@ static inline void memregion_free(int id) /** * cpu_cache_invalidate_memregion - drop any CPU cached data for - * memregions described by @res_desc - * @res_desc: one of the IORES_DESC_* types + * memregion * * Perform cache maintenance after a memory event / operation that * changes the contents of physical memory in a cache-incoherent manner. @@ -46,7 +45,7 @@ static inline void memregion_free(int id) * the cache maintenance. */ #ifdef CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION -int cpu_cache_invalidate_memregion(int res_desc); +int cpu_cache_invalidate_memregion(void); bool cpu_cache_has_invalidate_memregion(void); #else static inline bool cpu_cache_has_invalidate_memregion(void) @@ -54,7 +53,7 @@ static inline bool cpu_cache_has_invalidate_memregion(void) return false; } -static inline int cpu_cache_invalidate_memregion(int res_desc) +static inline int cpu_cache_invalidate_memregion(void) { WARN_ON_ONCE("CPU cache invalidation required"); return -ENXIO; |