APPLIED: [SRU] [Bionic] [PATCH 0/1] Fix iwlwifi's off by one bug in TFD

[Khaled Elmously]

On 2019-01-03 14:42:23 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1801102
> 
> [Impact]
> iwlwifi spews "Too many chunks: 20" in dmesg.
> 
> [Fix]
> From the patch description:
> "
> When we free the TFD, we check its number of valid pointers
> and make sure it doesn't exceed the number of pointers the
> hardware support.
> This check had an off by one bug: it is perfectly valid to
> free the 20 pointers if the TFD has 20 pointers.
> "
> 
> [Test]
> User confirms the patch solves the problem.
> 
> [Regression Potential]
> Low. The fix is limited to iwlwifi, and the patch is in mainline for a
> while.
> 
> Emmanuel Grumbach (1):
>   iwlwifi: pcie: don't warn if we use all the transmit pointers
> 
>  drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c | 2 +-
>  drivers/net/wireless/intel/iwlwifi/pcie/tx.c      | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> -- 
> 2.17.1
> 
> 
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