diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/011-cross-tree-phase-out-dma_zalloc_coherent.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/011-cross-tree-phase-out-dma_zalloc_coherent.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/011-cross-tree-phase-out-dma_zalloc_coherent.patch b/package/kernel/mac80211/patches/rt2x00/011-cross-tree-phase-out-dma_zalloc_coherent.patch new file mode 100644 index 0000000000..8100eb063b --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/011-cross-tree-phase-out-dma_zalloc_coherent.patch @@ -0,0 +1,40 @@ +From 750afb08ca71310fcf0c4e2cb1565c63b8235b60 Mon Sep 17 00:00:00 2001 +From: Luis Chamberlain <mcgrof@kernel.org> +Date: Fri, 4 Jan 2019 09:23:09 +0100 +Subject: [PATCH 11/28] cross-tree: phase out dma_zalloc_coherent() + +We already need to zero out memory for dma_alloc_coherent(), as such +using dma_zalloc_coherent() is superflous. Phase it out. + +This change was generated with the following Coccinelle SmPL patch: + +@ replace_dma_zalloc_coherent @ +expression dev, size, data, handle, flags; +@@ + +-dma_zalloc_coherent(dev, size, handle, flags) ++dma_alloc_coherent(dev, size, handle, flags) + +Suggested-by: Christoph Hellwig <hch@lst.de> +Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> +[hch: re-ran the script on the latest tree] +Signed-off-by: Christoph Hellwig <hch@lst.de> +--- + drivers/net/wireless/ralink/rt2x00/rt2x00mmio.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mmio.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mmio.c +@@ -119,9 +119,9 @@ static int rt2x00mmio_alloc_queue_dma(st + /* + * Allocate DMA memory for descriptor and buffer. + */ +- addr = dma_zalloc_coherent(rt2x00dev->dev, +- queue->limit * queue->desc_size, &dma, +- GFP_KERNEL); ++ addr = dma_alloc_coherent(rt2x00dev->dev, ++ queue->limit * queue->desc_size, &dma, ++ GFP_KERNEL); + if (!addr) + return -ENOMEM; + |