Re: FAILED: patch "[PATCH] rtlwifi: Fix kernel oops introduced with commit e49656147359" failed to apply to 4.9-stable tree

[Larry Finger <Larry.Finger@lwfinger.net>]

On 01/09/2017 08:40 AM, Kalle Valo wrote:
> <gregkh@linuxfoundation.org> writes:
>
>> The patch below does not apply to the 4.9-stable tree.
>> If someone wants it applied there, or to any other stable or longterm
>> tree, then please email the backport, including the original git commit
>> id to <stable@vger.kernel.org>.
>>
>> thanks,
>>
>> greg k-h
>>
>> ------------------ original commit in Linus's tree ------------------
>>
>> From 22b68b93ae2506bd56ee3bf232a51bc8ab955b56 Mon Sep 17 00:00:00 2001
>> From: Larry Finger <Larry.Finger@lwfinger.net>
>> Date: Mon, 19 Dec 2016 20:38:12 -0600
>> Subject: [PATCH] rtlwifi: Fix kernel oops introduced with commit e49656147359
>>
>> With commit e49656147359 {"rtlwifi: Use dev_kfree_skb_irq instead of
>> kfree_skb"), the method used to free an skb was changed because the
>> kfree_skb() was inside a spinlock. What was forgotten is that kfree_skb()
>> guards against a NULL value for the argument. Routine dev_kfree_skb_irq()
>> does not, and a test is needed to prevent kernel panics.
>>
>> Fixes: e49656147359 ("rtlwifi: Use dev_kfree_skb_irq instead of kfree_skb")
>> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
>> Cc: Stable <stable@vger.kernel.org> # 4.9+
>> Cc: Wei Yongjun <weiyongjun1@huawei.com>
>> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
>
> Larry, are you planning to port this to 4.9?

No. Apparently I got confused again and my use of the Cc to stable was 
incorrect. Commit 49656147359 was not applied until the 4.10 merge. The source 
of the confusion is related to when the various commits appear in the git log 
for mainline. The code, however, has the final word. :)

Dropping this patch in Stable is the correct option.

Larry