linux-kernel - Re: [PATCH 2/2] brcmfmac: don't warn user if loading firmware file with NVRAM fails

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Date:   Thu, 16 Feb 2017 03:19:02 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Rafał Miłecki <zajec5@...il.com>
Cc:     Ming Lei <ming.lei@...onical.com>,
        "Luis R . Rodriguez" <mcgrof@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        Arend van Spriel <arend.vanspriel@...adcom.com>,
        "open list:TI WILINK WIRELES..." <linux-wireless@...r.kernel.org>,
        brcm80211-dev-list.pdl@...adcom.com,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 2/2] brcmfmac: don't warn user if loading firmware file
 with NVRAM fails

On Thu, Feb 16, 2017 at 12:29 AM, Rafał Miłecki <zajec5@...il.com> wrote:
> From: Rafał Miłecki <rafal@...ecki.pl>
>
> This isn't critical as we use platform NVRAM as fallback and it's very
> common case of all Broadcom home routers. Thanks for the new firmware
> loading function we can achieve this by simply passing FW_OPT_NO_WARN.
>

What kind of warning you are talking about?

On Intel Edison brcmfmac isn't backed up by NVRAM (there no such) and
the platform is not ACPI-based. The warning might be crucial for
debugging Wi-Fi issues on such platforms.

> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
> ---
> Kalle, Arend: this patch is strictly related to the bigger 1/2. Could you ack
> this change as I expect this patchset to be picked by Ming, Luis or Greg.
> ---
>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
> index c7c1e9906500..26ec445a8d2d 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
> @@ -504,9 +504,9 @@ static void brcmf_fw_request_code_done(const struct firmware *fw, void *ctx)
>                 return;
>         }
>         fwctx->code = fw;
> -       ret = request_firmware_nowait(THIS_MODULE, true, fwctx->nvram_name,
> -                                     fwctx->dev, GFP_KERNEL, fwctx,
> -                                     brcmf_fw_request_nvram_done);
> +       ret = request_firmware_async(THIS_MODULE, FW_OPT_NO_WARN,
> +                                    fwctx->nvram_name, fwctx->dev, GFP_KERNEL,
> +                                    fwctx, brcmf_fw_request_nvram_done);
>
>         if (!ret)
>                 return;
> --
> 2.11.0
>



-- 
With Best Regards,
Andy Shevchenko