Document the dma_pool_zalloc() wrapper.
Signed-off-by: Petr Tesarik <ptesarik@xxxxxxxx>
---
Documentation/core-api/mm-api.rst | 2 ++
include/linux/dmapool.h | 8 ++++++++
2 files changed, 10 insertions(+)
diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst
index af8151db88b28..a61766328ac06 100644
--- a/Documentation/core-api/mm-api.rst
+++ b/Documentation/core-api/mm-api.rst
@@ -97,6 +97,8 @@ DMA pools
.. kernel-doc:: mm/dmapool.c
:export:
+.. kernel-doc:: include/linux/dmapool.h
+
More Memory Management Functions
================================
diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h
index 06c4de602b2f3..c0c7717d3ae7b 100644
--- a/include/linux/dmapool.h
+++ b/include/linux/dmapool.h
@@ -60,6 +60,14 @@ static inline struct dma_pool *dma_pool_create(const char *name,
NUMA_NO_NODE);
}
+/**
+ * dma_pool_zalloc - Get a zero-initialized block of DMA coherent memory.
+ * @pool: dma pool that will produce the block
+ * @mem_flags: GFP_* bitmask
+ * @handle: pointer to dma address of block
+ *
+ * Same as @dma_pool_alloc, but the returned memory is zeroed.
+ */
static inline void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
dma_addr_t *handle)
{
--
2.49.0
