Re: [PATCH] b43: Fix regression in kernel 4.18

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Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote:

> In commit 66cffd6daab7 ("b43: fix transmit failure when VT is switched"),
> a condition is noted where the network controller needs to be reset. Note
> that this situation happens when running the open-source firmware
> (http://netweb.ing.unibs.it/~openfwwf/), plus a number of other special
> conditions.
> 
> for a different card model, it is reported that this change breaks
> operation running the proprietary firmware
> (https://marc.info/?l=linux-wireless&m=153504546924558&w=2). Rather
> than reverting the previous patch, the code is tweaked to avoid the
> reset unless the open-source firmware is being used.
> 
> Fixes: 66cffd6daab7 ("b43: fix transmit failure when VT is switched")
> Cc: Stable <stable@xxxxxxxxxxxxxxx> # 4.18+
> Cc: Taketo Kabe <kabe@xxxxxxxxxxxxxxxx>
> Reported-and-tested-by: D. Prabhu <d.praabhu@xxxxxxxxx>
> Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>

I'll change the title to something more descriptive:

b43: fix DMA error related regression with proprietary firmware

Does that make sense?

-- 
https://patchwork.kernel.org/patch/10577379/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches




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