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SubjectRE: [EXT] Re: [PATCH] wifi: mwifiex: added delay after firmware downloaded.
Date

> From: Francesco Dolcini <francesco@dolcini.it>
> Sent: Saturday, October 21, 2023 8:56 PM
> To: David Lin <yu-hao.lin@nxp.com>
> Cc: linux-wireless@vger.kernel.org; linux-kernel@vger.kernel.org;
> briannorris@chromium.org; kvalo@kernel.org; francesco@dolcini.it; Sharvari
> Harisangam <sharvari.harisangam@nxp.com>; Pete Hsieh
> <tsung-hsien.hsieh@nxp.com>
> Subject: [EXT] Re: [PATCH] wifi: mwifiex: added delay after firmware
> downloaded.
>
> Caution: This is an external email. Please take care when clicking links or
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>
> Hello David,
> thanks for your patch.
>
> On Fri, Oct 20, 2023 at 03:35:34AM +0000, David Lin wrote:
> > Added 100 ms delayed after firmware is downloaded and active in order
> > to avoid command timeout for the first command sent to firmware.
>
> Please have a look at Documentation/process/submitting-patches.rst.
> In very brief:
> - you should use imperative mood to describe your changes
> - this is fixing a real issue, I believe this is worth a more complete commit
> message, including a log of the failure this is solving.
>
> I am also inclined to think that this change should be backported and it likely
> would need a Fixes: tag.
>
> > ---
> > drivers/net/wireless/marvell/mwifiex/main.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/net/wireless/marvell/mwifiex/main.c
> > b/drivers/net/wireless/marvell/mwifiex/main.c
> > index d99127dc466e..a25e8bb8daec 100644
> > --- a/drivers/net/wireless/marvell/mwifiex/main.c
> > +++ b/drivers/net/wireless/marvell/mwifiex/main.c
> > @@ -570,6 +570,7 @@ static int _mwifiex_fw_dpc(const struct firmware
> *firmware, void *context)
> > goto err_dnld_fw;
> >
> > mwifiex_dbg(adapter, MSG, "WLAN FW is active\n");
> > + mdelay(100);
>
> from my understanding there is already a function polling for the firmware to
> be active, e.g. mwifiex_check_fw_status(). Maybe is that function that needs
> to be fixed instead of adding an additional delay here?
>

O.K. I will check the function to see if I can add this modification to the function.

> Francesco

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