linux-kernel - Re: [PATCH v2 1/5] staging: rtl8192e: Remove variable SetWirelessMode

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Date:   Thu, 8 Jun 2023 15:29:38 +0530
From:   Yogesh Hegde <yogi.kernel@...il.com>
To:     Philipp Hortmann <philipp.g.hortmann@...il.com>
Cc:     Dan Carpenter <dan.carpenter@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/5] staging: rtl8192e: Remove variable SetWirelessMode

On Wed, Jun 07, 2023 at 10:18:28PM +0200, Philipp Hortmann wrote:
> My compiler does not compile this patch:
>   LD [M]  drivers/staging/rtl8192e/rtl8192e/r8192e_pci.o
>   MODPOST drivers/staging/rtl8192e/Module.symvers
> ERROR: modpost: "rtl92e_set_wireless_mode"
> [drivers/staging/rtl8192e/rtllib.ko] undefined!
> make[1]: *** [scripts/Makefile.modpost:136:
> drivers/staging/rtl8192e/Module.symvers] Error 1
> make: *** [Makefile:1978: modpost] Error 2
> 
> Did this compile on your system Yogesh?
No, while sending the patch I partially compiled it 
`make drivers/staging/rtl8192e` but when I fully compile it `make all` it gives 
me the same error. It is a mistake on my part. 

> But I think it does not work because this driver is divided into two
> modules.
> 
> To load the driver I am using the following lines:
> sudo insmod drivers/staging/rtl8192e/rtllib.ko
> sudo insmod drivers/staging/rtl8192e/rtl8192e/r8192e_pci.ko 
I was not aware of this and assumed that ideally the driver has only one (PCI) 
interface so all the files should be compiled into one `.ko` file and loaded.

> So this line is required:
> priv->rtllib->SetWirelessMode = rtl92e_set_wireless_mode;
> as one name is used in one module and one in the other module.
Yes, this makes sense now. 

Moving forward, 
Dan, Greg and Philipp what would be the best fix for this issue, 
1.  Patchset to combine both the modules into one module 
2.  Revert back this patchset to v1.

Looking forward for your response. 

Regards 
Yogesh