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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2019-06-13 13:18:48 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-20 14:23:24 +0200
commit743344a952fcebee9ca4d783807cf1f03f933baf (patch)
treed556f09ff7d66327f4eb06ba3edc5aa426893f85
parentUSB: core: correct a spelling mistake in the comment (diff)
downloadlinux-743344a952fcebee9ca4d783807cf1f03f933baf.tar.xz
linux-743344a952fcebee9ca4d783807cf1f03f933baf.zip
usb: renesas_usbhs: Use struct assignment instead of memcpy()
To avoid the error-proneness of calls to sizeof() in the memcpy, this patch uses struct assignment instead of memcpy. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au>--- This patch is based on Greg's linux-usb.git / usb-next branch. Note that mod_host.c also has memcpy but we cannot use struct assignment for it because the type of urb->setup_patcket is just "unsigned char *". drivers/usb/renesas_usbhs/common.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/renesas_usbhs/common.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index a501ea609019..ebbe322182bd 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -651,9 +651,8 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
return NULL;
dparam = &info->driver_param;
- memcpy(dparam, &data->param, sizeof(data->param));
- memcpy(&info->platform_callback, data->platform_callback,
- sizeof(*data->platform_callback));
+ *dparam = data->param;
+ info->platform_callback = *data->platform_callback;
if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp))
dparam->buswait_bwait = tmp;
@@ -714,17 +713,13 @@ static int usbhs_probe(struct platform_device *pdev)
* care platform info
*/
- memcpy(&priv->dparam,
- &info->driver_param,
- sizeof(struct renesas_usbhs_driver_param));
+ priv->dparam = info->driver_param;
if (!info->platform_callback.get_id) {
dev_err(&pdev->dev, "no platform callbacks");
return -EINVAL;
}
- memcpy(&priv->pfunc,
- &info->platform_callback,
- sizeof(struct renesas_usbhs_platform_callback));
+ priv->pfunc = info->platform_callback;
/* set driver callback functions for platform */
dfunc = &info->driver_callback;