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[3/4] usb: gadget: f_ncm: add support for no_skb_reserve

Message ID 1471855708-10897-4-git-send-email-yoshihiro.shimoda.uh@renesas.com (mailing list archive)
State Accepted
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Yoshihiro Shimoda Aug. 22, 2016, 8:48 a.m. UTC 
This patch adds to support no_skb_reserve function to improve
performance for some platforms. About the detail, please refer to
the commit log of "quirk_avoids_skb_reserve" in
include/linux/usb/gadget.h.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 drivers/usb/gadget/function/f_ncm.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
index 08cff49..6396037 100644
--- a/drivers/usb/gadget/function/f_ncm.c
+++ b/drivers/usb/gadget/function/f_ncm.c
@@ -924,6 +924,8 @@  static int ncm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 			 */
 			ncm->port.is_zlp_ok =
 				gadget_is_zlp_supported(cdev->gadget);
+			ncm->port.no_skb_reserve =
+				gadget_avoids_skb_reserve(cdev->gadget);
 			ncm->port.cdc_filter = DEFAULT_FILTER;
 			DBG(cdev, "activate ncm\n");
 			net = gether_connect(&ncm->port);