diff options
| author | Fuqian Huang <huangfq.daxian@gmail.com> | 2019-07-15 11:20:10 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-25 11:10:54 +0200 |
| commit | 3114bc89c0217254d3df10a42eab6b6ca00f547c (patch) | |
| tree | 2d2ee8f99f913faeba01325f631f09795f5694a5 /drivers/usb/host | |
| parent | 6443c671d5cbc60932b31f19f48091cddb2285eb (diff) | |
usb: host: Remove call to memset after dma_alloc_coherent
In commit 518a2f1925c3
("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>
Link: https://lore.kernel.org/r/20190715032010.7258-1-huangfq.daxian@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-dbgcap.c | 1 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 52e32644a4b2..93e2cca5262d 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -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; } diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index cf5e17962179..e16eda6e2b8b 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -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)", |