From: Peter Gonda <pgonda@google.com>
To: stable@vger.kernel.org
Cc: Peter Gonda <pgonda@google.com>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Christoph Hellwig <hch@lst.de>
Subject: [PATCH 25/30 for 5.4] dma-pool: get rid of dma_in_atomic_pool()
Date: Fri, 25 Sep 2020 09:19:11 -0700 [thread overview]
Message-ID: <20200925161916.204667-26-pgonda@google.com> (raw)
In-Reply-To: <20200925161916.204667-1-pgonda@google.com>
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
upstream 23e469be6239d9cf3d921fc3e38545491df56534 commit.
The function is only used once and can be simplified to a one-liner.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Peter Gonda <pgonda@google.com>
---
kernel/dma/pool.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c
index 39ca26fa41b5..318035e093fb 100644
--- a/kernel/dma/pool.c
+++ b/kernel/dma/pool.c
@@ -217,15 +217,6 @@ static inline struct gen_pool *dev_to_pool(struct device *dev)
return atomic_pool_kernel;
}
-static bool dma_in_atomic_pool(struct device *dev, void *start, size_t size)
-{
- struct gen_pool *pool = dev_to_pool(dev);
-
- if (unlikely(!pool))
- return false;
- return gen_pool_has_addr(pool, (unsigned long)start, size);
-}
-
void *dma_alloc_from_pool(struct device *dev, size_t size,
struct page **ret_page, gfp_t flags)
{
@@ -260,7 +251,7 @@ bool dma_free_from_pool(struct device *dev, void *start, size_t size)
{
struct gen_pool *pool = dev_to_pool(dev);
- if (!dma_in_atomic_pool(dev, start, size))
+ if (!pool || !gen_pool_has_addr(pool, (unsigned long)start, size))
return false;
gen_pool_free(pool, (unsigned long)start, size);
return true;
--
2.28.0.618.gf4bc123cb7-goog
next prev parent reply other threads:[~2020-09-25 16:20 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 16:18 [PATCH 00/30 for 5.4] Backport unencrypted non-blocking DMA allocations Peter Gonda
2020-09-25 16:18 ` [PATCH 01/30 for 5.4] dma-direct: remove __dma_direct_free_pages Peter Gonda
2020-09-25 16:18 ` [PATCH 02/30 for 5.4] dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages Peter Gonda
2020-09-25 16:18 ` [PATCH 03/30 for 5.4] dma-direct: provide mmap and get_sgtable method overrides Peter Gonda
2020-09-25 16:18 ` [PATCH 04/30 for 5.4] dma-mapping: merge the generic remapping helpers into dma-direct Peter Gonda
2020-09-25 16:18 ` [PATCH 05/30 for 5.4] lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr Peter Gonda
2020-09-25 16:18 ` [PATCH 06/30 for 5.4] dma-remap: separate DMA atomic pools from direct remap code Peter Gonda
2020-09-25 16:18 ` [PATCH 07/30 for 5.4] dma-pool: add additional coherent pools to map to gfp mask Peter Gonda
2020-09-25 16:18 ` [PATCH 08/30 for 5.4] dma-pool: dynamically expanding atomic pools Peter Gonda
2020-09-25 16:18 ` [PATCH 09/30 for 5.4] dma-direct: atomic allocations must come from atomic coherent pools Peter Gonda
2020-09-25 16:18 ` [PATCH 10/30 for 5.4] dma-pool: add pool sizes to debugfs Peter Gonda
2020-09-25 16:18 ` [PATCH 11/30 for 5.4] x86/mm: unencrypted non-blocking DMA allocations use coherent pools Peter Gonda
2020-09-25 16:18 ` [PATCH 12/30 for 5.4] dma-pool: scale the default DMA coherent pool size with memory capacity Peter Gonda
2020-09-25 16:18 ` [PATCH 13/30 for 5.4] dma-pool: fix too large DMA pools on medium memory size systems Peter Gonda
2020-09-25 16:19 ` [PATCH 14/30 for 5.4] dma-pool: decouple DMA_REMAP from DMA_COHERENT_POOL Peter Gonda
2020-09-25 16:19 ` [PATCH 15/30 for 5.4] dma-direct: consolidate the error handling in dma_direct_alloc_pages Peter Gonda
2020-09-25 16:19 ` [PATCH 16/30 for 5.4] xtensa: use the generic uncached segment support Peter Gonda
2020-09-25 16:19 ` [PATCH 17/30 for 5.4] dma-direct: make uncached_kernel_address more general Peter Gonda
2020-09-25 16:19 ` [PATCH 18/30 for 5.4] dma-direct: always align allocation size in dma_direct_alloc_pages() Peter Gonda
2020-09-25 16:19 ` [PATCH 19/30 for 5.4] dma-direct: re-encrypt memory if dma_direct_alloc_pages() fails Peter Gonda
2020-09-25 16:19 ` [PATCH 20/30 for 5.4] dma-direct: check return value when encrypting or decrypting memory Peter Gonda
2020-09-25 16:19 ` [PATCH 21/30 for 5.4] dma-direct: add missing set_memory_decrypted() for coherent mapping Peter Gonda
2020-09-25 16:19 ` [PATCH 22/30 for 5.4] dma-mapping: DMA_COHERENT_POOL should select GENERIC_ALLOCATOR Peter Gonda
2020-09-25 16:19 ` [PATCH 23/30 for 5.4] dma-mapping: warn when coherent pool is depleted Peter Gonda
2020-09-25 16:19 ` [PATCH 24/30 for 5.4] dma-direct: provide function to check physical memory area validity Peter Gonda
2020-09-25 16:19 ` Peter Gonda [this message]
2020-09-25 16:19 ` [PATCH 26/30 for 5.4] dma-pool: introduce dma_guess_pool() Peter Gonda
2020-09-25 16:19 ` [PATCH 27/30 for 5.4] dma-pool: make sure atomic pool suits device Peter Gonda
2020-09-25 16:19 ` [PATCH 28/30 for 5.4] dma-pool: do not allocate pool memory from CMA Peter Gonda
2020-09-25 16:19 ` [PATCH 29/30 for 5.4] dma-pool: fix coherent pool allocations for IOMMU mappings Peter Gonda
2020-09-25 16:19 ` [PATCH 30/30 for 5.4] dma/direct: turn ARCH_ZONE_DMA_BITS into a variable Peter Gonda
2020-10-05 13:07 ` [PATCH 00/30 for 5.4] Backport unencrypted non-blocking DMA allocations Greg KH
2020-10-06 15:26 ` Peter Gonda
2020-10-06 18:10 ` David Rientjes
2021-01-04 13:00 ` Greg KH
2021-01-04 22:37 ` David Rientjes
2021-01-05 5:58 ` Greg KH
2021-01-05 6:38 ` David Rientjes
2021-05-12 19:06 ` Peter Gonda
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