This is a note to let you know that I've just added the patch titled
net: cdc_ncm: initialize drvflags before usage
to the 4.4-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:
net-cdc_ncm-initialize-drvflags-before-usage.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From matthias.dev@xxxxxx Tue Feb 6 12:26:56 2018
From: Matthias <matthias.dev@xxxxxx>
Date: Tue, 6 Feb 2018 20:59:01 +0100
Subject: net: cdc_ncm: initialize drvflags before usage
To: stable@xxxxxxxxxxxxxxx
Cc: mrkiko.rs@xxxxxxxxx
Message-ID: <20180206205901.79d22fef@xxxxxxxxxxxxxxxx>
From: Matthias Hintzmann <matthias.dev@xxxxxx>
ctx->drvflags is checked in the if clause before beeing initialized.
Move initialization before first usage.
Note, that the if clause was backported with commit 75f82a703b30
("cdc_ncm: Set NTB format again after altsetting switch for Huawei
devices") from mainline (upstream commit 2b02c20ce0c2 ("cdc_ncm: Set NTB
format again after altsetting switch for Huawei devices"). In mainline,
the initialization is at the right place before the if clause.
[mrkiko.rs@xxxxxxxxx: commit message tweaks]
Fixes: 75f82a703b30 ("cdc_ncm: Set NTB format again after altsetting switch for Huawei devices")
Signed-off-by: Matthias Hintzmann <matthias.dev@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/usb/cdc_ncm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -825,6 +825,9 @@ int cdc_ncm_bind_common(struct usbnet *d
goto error2;
}
+ /* Device-specific flags */
+ ctx->drvflags = drvflags;
+
/*
* Some Huawei devices have been observed to come out of reset in NDP32 mode.
* Let's check if this is the case, and set the device to NDP16 mode again if
@@ -873,9 +876,6 @@ int cdc_ncm_bind_common(struct usbnet *d
/* finish setting up the device specific data */
cdc_ncm_setup(dev);
- /* Device-specific flags */
- ctx->drvflags = drvflags;
-
/* Allocate the delayed NDP if needed. */
if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) {
ctx->delayed_ndp16 = kzalloc(ctx->max_ndp_size, GFP_KERNEL);
Patches currently in stable-queue which might be from matthias.dev@xxxxxx are
queue-4.4/net-cdc_ncm-initialize-drvflags-before-usage.patch