linux-kernel - Re: [patch, 2.6.26-rc2] dvb: drivers/media/dvb/ttpci/fdump firmware build error fix

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Date:	Mon, 12 May 2008 19:30:10 +0200
From:	Oliver Endriss <o.endriss@....de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Andrew de Quincey <adq_dvb@...skialf.net>,
	Johannes Stezenbach <js@...uxtv.org>
Subject: Re: [patch, 2.6.26-rc2] dvb: drivers/media/dvb/ttpci/fdump firmware build error fix

Ingo Molnar wrote:
> 
> x86.git testing found the following build failure in 2.6.26-rc2:
> 
>   drivers/media/dvb/ttpci/fdump "/usr/lib/hotplug/firmware/dvb-ttpci-01.fw" dvb_ttpci_fw drivers/media/dvb/ttpci/av7110_firm.h
>   firmware file '/usr/lib/hotplug/firmware/dvb-ttpci-01.fw' not found
>   make[4]: *** [drivers/media/dvb/ttpci/av7110_firm.h] Error 255
>   make[3]: *** [drivers/media/dvb/ttpci] Error 2
> 
> in this config:
> 
>   http://redhat.com/~mingo/misc/config-Mon_May_12_11_29_29_CEST_2008.bad
> 
> the reason for the build bug is that the driver's Kconfig ignores the 
> PREVENT_FIRMWARE_BUILD=y config setting and tries to build the firmware 
> which (like other firmware build methods) relies on a non-upstream 
> firmware blob. The fix is to make the firmware build depend on 
> !PREVENT_FIRMWARE_BUILD.
> 
> Signed-off-by: Ingo Molnar <mingo@...e.hu>
> ---
>  drivers/media/dvb/ttpci/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: linux/drivers/media/dvb/ttpci/Kconfig
> ===================================================================
> --- linux.orig/drivers/media/dvb/ttpci/Kconfig
> +++ linux/drivers/media/dvb/ttpci/Kconfig
> @@ -33,7 +33,7 @@ config DVB_AV7110
>  
>  config DVB_AV7110_FIRMWARE
>  	bool "Compile AV7110 firmware into the driver"
> -	depends on DVB_AV7110 && !STANDALONE
> +	depends on DVB_AV7110 && !STANDALONE && !PREVENT_FIRMWARE_BUILD
>  	default y if DVB_AV7110=y
>  	help
>  	  The AV7110 firmware is normally loaded by the firmware hotplug manager.
> 

Nak. because DVB_AV7110_FIRMWARE=y does not build any firmware.

If you set DVB_AV7110_FIRMWARE=y, the firmware file under
DVB_AV7110_FIRMWARE_FILE must exist...

CU
Oliver

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