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wireless: Remove call to memset after dma_alloc_coherent

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In commit 518a2f1925
("dma-mapping: zero memory returned from dma_alloc_*"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Fuqian Huang 2019-07-15 11:19:41 +08:00 committed by Kalle Valo
parent c3226d93f8
commit 52d4261862
4 changed files with 0 additions and 11 deletions
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5
drivers/net/wireless/ath/ath10k/ce.c
View File

@ -1704,9 +1704,6 @@ ath10k_ce_alloc_dest_ring_64(struct ath10k *ar, unsigned int ce_id,
/* Correctly initialize memory to 0 to prevent garbage
* data crashing system when download firmware
*/
memset(dest_ring->base_addr_owner_space_unaligned, 0,
nentries * sizeof(struct ce_desc_64) + CE_DESC_RING_ALIGN);
dest_ring->base_addr_owner_space =
PTR_ALIGN(dest_ring->base_addr_owner_space_unaligned,
CE_DESC_RING_ALIGN);
@ -2019,8 +2016,6 @@ void ath10k_ce_alloc_rri(struct ath10k *ar)
value |= ar->hw_ce_regs->upd->mask;
ath10k_ce_write32(ar, ce_base_addr + ctrl1_regs, value);
}
memset(ce->vaddr_rri, 0, CE_COUNT * sizeof(u32));
}
EXPORT_SYMBOL(ath10k_ce_alloc_rri);

2
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
View File

@ -1024,8 +1024,6 @@ brcmf_pcie_init_dmabuffer_for_device(struct brcmf_pciedev_info *devinfo,
address & 0xffffffff);
brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr + 4, address >> 32);
memset(ring, 0, size);
return (ring);
}

2
drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c
View File

@ -244,8 +244,6 @@ static int pearl_alloc_bd_table(struct qtnf_pcie_pearl_state *ps)
/* tx bd */
memset(vaddr, 0, len);
ps->bd_table_vaddr = vaddr;
ps->bd_table_paddr = paddr;
ps->bd_table_len = len;

2
drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
View File

@ -199,8 +199,6 @@ static int topaz_alloc_bd_table(struct qtnf_pcie_topaz_state *ts,
if (!vaddr)
return -ENOMEM;
memset(vaddr, 0, len);
/* tx bd */
ts->tx_bd_vbase = vaddr;