Re: [PATCH] staging: sm750: Fix missing config in Kconfig

[Greg Kroah-Hartman]

On Sat, Sep 21, 2024 at 03:06:09PM -0300, Fabricio Gasperin wrote:
> Fixes the following compilation error:
> 
> ERROR: modpost: "fb_io_read" [drivers/staging/sm750fb/sm750fb.ko] undefined!
> ERROR: modpost: "fb_io_write" [drivers/staging/sm750fb/sm750fb.ko] undefined!
> ERROR: modpost: "fb_io_mmap" [drivers/staging/sm750fb/sm750fb.ko] undefined!
> 
> Signed-off-by: Fabricio Gasperin <fgasperin@xxxxxxxxxx>
> ---
>  drivers/staging/sm750fb/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/staging/sm750fb/Kconfig b/drivers/staging/sm750fb/Kconfig
> index 08bcccdd0f1c..eca1aa43d725 100644
> --- a/drivers/staging/sm750fb/Kconfig
> +++ b/drivers/staging/sm750fb/Kconfig
> @@ -3,6 +3,7 @@ config FB_SM750
>  	tristate "Silicon Motion SM750 framebuffer support"
>  	depends on FB && PCI && HAS_IOPORT
>  	select FB_MODE_HELPERS
> +	select FB_IOMEM_FOPS
>  	select FB_CFB_FILLRECT
>  	select FB_CFB_COPYAREA
>  	select FB_CFB_IMAGEBLIT
> -- 
> 2.46.1
> 
> 

What is causing this error?  What commit created the problem, and why
has no one reported it yet?

confused,

greg k-h