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Re: [PATCH v2] brcmfmac: expose firmware config files through modinfo

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20.11.2020 12:52, matthias.bgg@xxxxxxxxxx пишет:
> From: Matthias Brugger <mbrugger@xxxxxxxx>
> 
> Apart from a firmware binary the chip needs a config file used by the
> FW. Add the config files to modinfo so that they can be read by
> userspace.
> 
> Signed-off-by: Matthias Brugger <mbrugger@xxxxxxxx>
> 
> ---
> 
> Changes in v2:
> In comparison to first version [0] we use wildcards to enumerate the
> firmware configuration files. Wildcard support was added to dracut
> recently [1].
> [0] https://lore.kernel.org/linux-wireless/20200701153123.25602-1-matthias.bgg@xxxxxxxxxx/
> [1] https://github.com/dracutdevs/dracut/pull/860
> 
>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> index 99987a789e7e..dd6d287b1b00 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> @@ -625,6 +625,15 @@ BRCMF_FW_DEF(4359, "brcmfmac4359-sdio");
>  BRCMF_FW_DEF(4373, "brcmfmac4373-sdio");
>  BRCMF_FW_DEF(43012, "brcmfmac43012-sdio");
>  
> +/* firmware config files */
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac4330-sdio.*.txt");
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac43340-sdio.*.txt");
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac43362-sdio.*.txt");
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac43430a0-sdio.*.txt");
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac43430-sdio.*.txt");
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac43455-sdio.*.txt");
> +MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac4356-pcie.*.txt");

This doesn't cover all hardware models. Note that the upstream
linux-firmware has files only for a few hardware models.

I suppose that the correct mask should be "brcm/brcmfmac*-sdio.*.txt".



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