This is a note to let you know that I've just added the patch titled
usb: gadget: define free_ep_req as universal function
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-gadget-define-free_ep_req-as-universal-function.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 079fe5a6da616891cca1a26e803e1df2a87e9ae5 Mon Sep 17 00:00:00 2001
From: "Felipe F. Tonello" <eu@xxxxxxxxxxxxxxxxx>
Date: Tue, 10 Nov 2015 17:52:05 +0000
Subject: usb: gadget: define free_ep_req as universal function
From: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx>
commit 079fe5a6da616891cca1a26e803e1df2a87e9ae5 upstream.
This function is shared between gadget functions, so this avoid unnecessary
duplicated code and potentially avoid memory leaks.
Reviewed-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
Signed-off-by: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_midi.c | 6 ------
drivers/usb/gadget/function/f_sourcesink.c | 6 ------
drivers/usb/gadget/function/g_zero.h | 1 -
drivers/usb/gadget/u_f.c | 1 -
drivers/usb/gadget/u_f.h | 10 ++++++++--
5 files changed, 8 insertions(+), 16 deletions(-)
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -199,12 +199,6 @@ static inline struct usb_request *midi_a
return alloc_ep_req(ep, length, length);
}
-static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
-{
- kfree(req->buf);
- usb_ep_free_request(ep, req);
-}
-
static const uint8_t f_midi_cin_length[] = {
0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
};
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -435,12 +435,6 @@ static inline struct usb_request *ss_all
return alloc_ep_req(ep, len, buflen);
}
-void free_ep_req(struct usb_ep *ep, struct usb_request *req)
-{
- kfree(req->buf);
- usb_ep_free_request(ep, req);
-}
-
static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
{
int value;
--- a/drivers/usb/gadget/function/g_zero.h
+++ b/drivers/usb/gadget/function/g_zero.h
@@ -69,7 +69,6 @@ void lb_modexit(void);
int lb_modinit(void);
/* common utilities */
-void free_ep_req(struct usb_ep *ep, struct usb_request *req);
void disable_endpoints(struct usb_composite_dev *cdev,
struct usb_ep *in, struct usb_ep *out,
struct usb_ep *iso_in, struct usb_ep *iso_out,
--- a/drivers/usb/gadget/u_f.c
+++ b/drivers/usb/gadget/u_f.c
@@ -11,7 +11,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/usb/gadget.h>
#include "u_f.h"
struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
--- a/drivers/usb/gadget/u_f.h
+++ b/drivers/usb/gadget/u_f.h
@@ -16,6 +16,8 @@
#ifndef __U_F_H__
#define __U_F_H__
+#include <linux/usb/gadget.h>
+
/* Variable Length Array Macros **********************************************/
#define vla_group(groupname) size_t groupname##__next = 0
#define vla_group_size(groupname) groupname##__next
@@ -45,8 +47,12 @@
struct usb_ep;
struct usb_request;
+/* Requests allocated via alloc_ep_req() must be freed by free_ep_req(). */
struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len);
+static inline void free_ep_req(struct usb_ep *ep, struct usb_request *req)
+{
+ kfree(req->buf);
+ usb_ep_free_request(ep, req);
+}
#endif /* __U_F_H__ */
-
-
Patches currently in stable-queue which might be from eu@xxxxxxxxxxxxxxxxx are
queue-3.18/usb-gadget-change-len-to-size_t-on-alloc_ep_req.patch
queue-3.18/usb-gadget-define-free_ep_req-as-universal-function.patch
queue-3.18/usb-gadget-fix-usb_ep_align_maybe-endianness-and-new-usb_ep_align.patch
queue-3.18/usb-gadget-align-buffer-size-when-allocating-for-out-endpoint.patch