diff options
Diffstat (limited to 'package/kernel/mac80211/patches/317-v4.16-0001-brcmfmac-Use-zeroing-memory-allocator-than-allocator.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/317-v4.16-0001-brcmfmac-Use-zeroing-memory-allocator-than-allocator.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/317-v4.16-0001-brcmfmac-Use-zeroing-memory-allocator-than-allocator.patch b/package/kernel/mac80211/patches/317-v4.16-0001-brcmfmac-Use-zeroing-memory-allocator-than-allocator.patch new file mode 100644 index 0000000..b60c81a --- /dev/null +++ b/package/kernel/mac80211/patches/317-v4.16-0001-brcmfmac-Use-zeroing-memory-allocator-than-allocator.patch @@ -0,0 +1,59 @@ +From b7acadaf038740c43515dc1548f43d01cc92823a Mon Sep 17 00:00:00 2001 +From: Himanshu Jha <himanshujha199640@gmail.com> +Date: Tue, 9 Jan 2018 02:15:31 +0530 +Subject: [PATCH] brcmfmac: Use zeroing memory allocator than allocator/memset + +Use dma_zalloc_coherent for allocating zeroed +memory and remove unnecessary memset function. + +Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci + +Suggested-by: Luis R. Rodriguez <mcgrof@kernel.org> +Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + .../net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 20 ++++++++++---------- + 1 file changed, 10 insertions(+), 10 deletions(-) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +@@ -1251,14 +1251,14 @@ static int brcmf_pcie_init_scratchbuffer + u64 address; + u32 addr; + +- devinfo->shared.scratch = dma_alloc_coherent(&devinfo->pdev->dev, +- BRCMF_DMA_D2H_SCRATCH_BUF_LEN, +- &devinfo->shared.scratch_dmahandle, GFP_KERNEL); ++ devinfo->shared.scratch = ++ dma_zalloc_coherent(&devinfo->pdev->dev, ++ BRCMF_DMA_D2H_SCRATCH_BUF_LEN, ++ &devinfo->shared.scratch_dmahandle, ++ GFP_KERNEL); + if (!devinfo->shared.scratch) + goto fail; + +- memset(devinfo->shared.scratch, 0, BRCMF_DMA_D2H_SCRATCH_BUF_LEN); +- + addr = devinfo->shared.tcm_base_address + + BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET; + address = (u64)devinfo->shared.scratch_dmahandle; +@@ -1268,14 +1268,14 @@ static int brcmf_pcie_init_scratchbuffer + BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET; + brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_SCRATCH_BUF_LEN); + +- devinfo->shared.ringupd = dma_alloc_coherent(&devinfo->pdev->dev, +- BRCMF_DMA_D2H_RINGUPD_BUF_LEN, +- &devinfo->shared.ringupd_dmahandle, GFP_KERNEL); ++ devinfo->shared.ringupd = ++ dma_zalloc_coherent(&devinfo->pdev->dev, ++ BRCMF_DMA_D2H_RINGUPD_BUF_LEN, ++ &devinfo->shared.ringupd_dmahandle, ++ GFP_KERNEL); + if (!devinfo->shared.ringupd) + goto fail; + +- memset(devinfo->shared.ringupd, 0, BRCMF_DMA_D2H_RINGUPD_BUF_LEN); +- + addr = devinfo->shared.tcm_base_address + + BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET; + address = (u64)devinfo->shared.ringupd_dmahandle; |