linux-kernel - Re: [PATCH] staging: r8188eu: add firmware dependency

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Date:   Tue, 2 Aug 2022 13:03:17 -0500
From:   Larry Finger <Larry.Finger@...inger.net>
To:     Grzegorz Szymaszek <gszymaszek@...rt.pl>, Greg KH <greg@...ah.com>,
        Phillip Potter <phil@...lpotter.co.uk>,
        linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH] staging: r8188eu: add firmware dependency

On 8/2/22 12:18, Grzegorz Szymaszek wrote:
> The old rtl8188eu module, removed in commit 55dfa29b43d2 ("staging:
> rtl8188eu: remove rtl8188eu driver from staging dir") (Linux kernel
> v5.15-rc1), required (through a MODULE_FIRMWARE call()) the
> rtlwifi/rtl8188eufw.bin firmware file, which the new r8188eu driver no
> longer requires.
> 
> I have tested a few RTL8188EUS-based Wi-Fi cards and, while supported by
> both drivers, they do not work when using the new one and the firmware
> wasn't manually loaded. According to Larry Finger, the module
> maintainer, all such cards need the firmware and the driver should
> depend on it (see the linked mails).
> 
> Add a proper MODULE_FIRMWARE() call, like it was done in the old driver.
> 
> Thanks to Greg Kroah-Hartman and Larry Finger for quick responses to my
> questions.
> 
> Link: https://answers.launchpad.net/ubuntu/+source/linux-meta-hwe-5.15/+question/702611
> Link: https://lore.kernel.org/lkml/YukkBu3TNODO3or9@nx64de-df6d00/
> Signed-off-by: Grzegorz Szymaszek <gszymaszek@...rt.pl>
> ---
>   drivers/staging/r8188eu/os_dep/os_intfs.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/staging/r8188eu/os_dep/os_intfs.c b/drivers/staging/r8188eu/os_dep/os_intfs.c
> index 891c85b088ca..5bd3022e4b40 100644
> --- a/drivers/staging/r8188eu/os_dep/os_intfs.c
> +++ b/drivers/staging/r8188eu/os_dep/os_intfs.c
> @@ -18,6 +18,7 @@ MODULE_LICENSE("GPL");
>   MODULE_DESCRIPTION("Realtek Wireless Lan Driver");
>   MODULE_AUTHOR("Realtek Semiconductor Corp.");
>   MODULE_VERSION(DRIVERVERSION);
> +MODULE_FIRMWARE("rtlwifi/rtl8188eufw.bin");
>   
>   #define CONFIG_BR_EXT_BRNAME "br0"
>   #define RTW_NOTCH_FILTER 0 /* 0:Disable, 1:Enable, */

Acked-by: Larry Finger <Larry.Finger@...inger.net>

Thanks,

Larry