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Message-ID: <20081206092812.7753125d@pedra.chehab.org> Date: Sat, 6 Dec 2008 09:28:12 -0200 From: Mauro Carvalho Chehab <mchehab@...radead.org> To: Randy Dunlap <randy.dunlap@...cle.com> Cc: Stephen Rothwell <sfr@...b.auug.org.au>, linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, v4l-dvb-maintainer@...uxtv.org, video4linux-list@...hat.com Subject: Re: linux-next: Tree for December 3 (media/video/cx88) Hi Randy, On Wed, 03 Dec 2008 13:16:08 -0800 Randy Dunlap <randy.dunlap@...cle.com> wrote: > Stephen Rothwell wrote: > > Hi all, > > > > Changes since 20081202: > > > > Today's tree fails the powerpc allyesconfig build. > > > drivers/built-in.o: In function `cx88_call_i2c_clients': > (.text+0xbafc7): undefined reference to `videobuf_dvb_get_frontend' > drivers/built-in.o: In function `cx8802_probe': > cx88-mpeg.c:(.devinit.text+0x61b3): undefined reference to `videobuf_dvb_alloc_frontend' > cx88-mpeg.c:(.devinit.text+0x61d9): undefined reference to `videobuf_dvb_dealloc_frontends' > make[1]: *** [.tmp_vmlinux1] Error 1 > > > config attached. It required some tricks to fix this one ;) Patch is attached. On my tests, all combinations worked properly. Cheers, Mauro -- cx88: fix compilation when cx8800=y and cx88-dvb=m The current Kconfig rules allow having the core cx88 driver (cx8800) compiled in-kernel, and cx88 sub-drivers (cx88-alsa, cx88-blackbird, cx88-dvb) to be compiled as modules. However, if you select cx88-dvb as a module, it will select videobuf_dvb as a module also. As pointed by Randy Dunlap <randy.dunlap@...cle.com>, using those .config entries: CONFIG_VIDEO_CX88=y # CONFIG_VIDEO_CX88_BLACKBIRD is not set CONFIG_VIDEO_CX88_DVB=m CONFIG_VIDEOBUF_GEN=y CONFIG_VIDEOBUF_DMA_SG=y CONFIG_VIDEOBUF_VMALLOC=y CONFIG_VIDEOBUF_DVB=m Will produce those errors: drivers/built-in.o: In function `cx88_call_i2c_clients': (.text+0xbafc7): undefined reference to `videobuf_dvb_get_frontend' drivers/built-in.o: In function `cx8802_probe': cx88-mpeg.c:(.devinit.text+0x61b3): undefined reference to `videobuf_dvb_alloc_frontend' cx88-mpeg.c:(.devinit.text+0x61d9): undefined reference to `videobuf_dvb_dealloc_frontends' make[1]: *** [.tmp_vmlinux1] Error 1 A simple fix would be just to make cx88-mpeg to be depend on VIDEO_CX88_DVB || VIDEO_CX88_BLACKBIRD. However, cx88-i2c has a conditional test to call videobuf_dvb_get_frontend() if VIDEO_CX88_DVB. As cx88-i2c is part of cx88 (compiled with Y) and videobuf_dvb_get_frontend is part of videobuf_dvb (compiled with M), this will cause another error. So, it is needed also to deny having cx88=y and cx88_dvb=m. This patch also fixes a minor issue where cx8802 helper module were inconditionally compiled, even on setups where it would never be used. Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com> diff --git a/drivers/media/video/cx88/Kconfig b/drivers/media/video/cx88/Kconfig index 0b9e5fa..96242ad 100644 --- a/drivers/media/video/cx88/Kconfig +++ b/drivers/media/video/cx88/Kconfig @@ -1,5 +1,5 @@ config VIDEO_CX88 - tristate "Conexant 2388x (bt878 successor) support" + tristate "Conexant 2388x (bt878 successor) support (cx88)" depends on VIDEO_DEV && PCI && I2C && INPUT select I2C_ALGOBIT select VIDEO_BTCX @@ -43,9 +43,21 @@ config VIDEO_CX88_BLACKBIRD To compile this driver as a module, choose M here: the module will be called cx88-blackbird. -config VIDEO_CX88_DVB - tristate "DVB/ATSC Support for cx2388x based TV cards" +config VIDEO_CX88_ALLOW_DVB + boolean "DVB/ATSC Support for cx2388x based TV cards" depends on VIDEO_CX88 && DVB_CORE + + ---help--- + This adds support for DVB/ATSC cards based on the + Conexant 2388x chip. + + if cx88 driver is compiled as a module, the + dvb support module will be called cx88-dvb. + +config VIDEO_CX88_DVB + tristate + default y + depends on VIDEO_CX88 && DVB_CORE && VIDEO_CX88_ALLOW_DVB select VIDEOBUF_DVB select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_MT352 if !DVB_FE_CUSTOMISE @@ -62,12 +74,11 @@ config VIDEO_CX88_DVB select DVB_STV0299 if !DVB_FE_CUSTOMISE select DVB_STV0288 if !DVB_FE_CUSTOMISE select DVB_STB6000 if !DVB_FE_CUSTOMISE - ---help--- - This adds support for DVB/ATSC cards based on the - Conexant 2388x chip. - To compile this driver as a module, choose M here: the - module will be called cx88-dvb. +config VIDEO_CX88_MPEG + tristate + default y + depends on VIDEO_CX88_DVB || VIDEO_CX88_BLACKBIRD config VIDEO_CX88_VP3054 tristate "VP-3054 Secondary I2C Bus Support" diff --git a/drivers/media/video/cx88/Makefile b/drivers/media/video/cx88/Makefile index 6ec30f2..b06b127 100644 --- a/drivers/media/video/cx88/Makefile +++ b/drivers/media/video/cx88/Makefile @@ -3,7 +3,8 @@ cx88xx-objs := cx88-cards.o cx88-core.o cx88-i2c.o cx88-tvaudio.o \ cx8800-objs := cx88-video.o cx88-vbi.o cx8802-objs := cx88-mpeg.o -obj-$(CONFIG_VIDEO_CX88) += cx88xx.o cx8800.o cx8802.o +obj-$(CONFIG_VIDEO_CX88) += cx88xx.o cx8800.o +obj-$(CONFIG_VIDEO_CX88_MPEG) += cx8802.o obj-$(CONFIG_VIDEO_CX88_ALSA) += cx88-alsa.o obj-$(CONFIG_VIDEO_CX88_BLACKBIRD) += cx88-blackbird.o obj-$(CONFIG_VIDEO_CX88_DVB) += cx88-dvb.o -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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