Commit 3114bc89 authored by Fuqian Huang's avatar Fuqian Huang Committed by Greg Kroah-Hartman
Browse files

usb: host: Remove call to memset after dma_alloc_coherent 



In commit 518a2f19
("dma-mapping: zero memory returned from dma_alloc_*"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: default avatarFuqian Huang <huangfq.daxian@gmail.com>
Link: https://lore.kernel.org/r/20190715032010.7258-1-huangfq.daxian@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6443c671

drivers/usb/host/xhci-dbgcap.c

+0 −1
Original line number Diff line number Diff line
@@ -22,7 +22,6 @@ dbc_dma_alloc_coherent(struct xhci_hcd *xhci, size_t size, 


	vaddr = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev,

				   size, dma_handle, flags);

	memset(vaddr, 0, size);

	return vaddr;

}

drivers/usb/host/xhci-mem.c

+0 −1
Original line number Diff line number Diff line
@@ -2399,7 +2399,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) 
			flags);

	if (!xhci->dcbaa)

		goto fail;

	memset(xhci->dcbaa, 0, sizeof *(xhci->dcbaa));

	xhci->dcbaa->dma = dma;

	xhci_dbg_trace(xhci, trace_xhci_dbg_init,

			"// Device context base array address = 0x%llx (DMA), %p (virt)",

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