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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-05-22 00:34:11 -0700 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-05-23 09:57:04 +0200 |
| commit | ce3c754e7374cd83be1b88b386da1e9fb6b606f4 (patch) | |
| tree | 2cf32247a6550649c56d31cf0596f448269c1165 /drivers/usb | |
| parent | b8b5289562908352cdbfaaee9867f562c4746ad7 (diff) | |
| download | barebox-ce3c754e7374cd83be1b88b386da1e9fb6b606f4.tar.gz barebox-ce3c754e7374cd83be1b88b386da1e9fb6b606f4.tar.xz | |
usb: host: ehci: Drop explicit memset() in ehci_init()
Memory allocated by dma_alloc_coherent() is already zeroed out,
ehci->qh_list[0] never changes during the operation of the driver and
ehci->qh_list[1] will be explicitly initialized by ehci_submit_async()
so this additional memset() shouldn't be necessary.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 050a3166e3..11c34d8a26 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -839,8 +839,6 @@ static int ehci_init(struct usb_host *host) return ret; } - memset(ehci->qh_list, 0, sizeof(struct QH) * NUM_TD); - ehci->qh_list->qh_link = cpu_to_hc32((uint32_t)ehci->qh_list | QH_LINK_TYPE_QH); ehci->qh_list->qh_endpt1 = cpu_to_hc32(QH_ENDPT1_H(1) | QH_ENDPT1_EPS(USB_SPEED_HIGH)); |