From mboxrd@z Thu Jan 1 00:00:00 1970 From: Enrico Mioso Subject: [PATCH RFC] 1/2 cdc_ncm: export cdc_ncm_align_tail Date: Tue, 23 Jun 2015 00:32:14 +0200 Message-ID: <1435012335-6055-2-git-send-email-mrkiko.rs@gmail.com> References: <1435012335-6055-1-git-send-email-mrkiko.rs@gmail.com> Cc: Oliver Neukum , Enrico Mioso To: linux-usb@vger.kernel.org, netdev@vger.kernel.org Return-path: Received: from mail-wi0-f176.google.com ([209.85.212.176]:35393 "EHLO mail-wi0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751880AbbFVWdQ (ORCPT ); Mon, 22 Jun 2015 18:33:16 -0400 In-Reply-To: <1435012335-6055-1-git-send-email-mrkiko.rs@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: Export this function to allow for reusing it in other drivers needing NCM frames alignment, such as the huawei_cdc_ncm one. Signed-off-by: Enrico Mioso --- drivers/net/usb/cdc_ncm.c | 3 ++- include/linux/usb/cdc_ncm.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 8067b8f..1a8b619 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -967,7 +967,7 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) return ret; } -static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max) +void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max) { size_t align = ALIGN(skb->len, modulus) - skb->len + remainder; @@ -976,6 +976,7 @@ static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remai if (align && skb_tailroom(skb) >= align) memset(skb_put(skb, align), 0, align); } +EXPORT_SYMBOL_GPL(cdc_ncm_align_tail); /* return a pointer to a valid struct usb_cdc_ncm_ndp16 of type sign, possibly * allocating a new one within skb diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h index 7c9b484..8fe7ef0 100644 --- a/include/linux/usb/cdc_ncm.h +++ b/include/linux/usb/cdc_ncm.h @@ -141,5 +141,6 @@ int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset); struct sk_buff * cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags); int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in); +void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max); #endif /* __LINUX_USB_CDC_NCM_H */ -- 2.4.4