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authorMauro Carvalho Chehab <mchehab@redhat.com>2009-01-06 16:06:07 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-01-07 22:18:56 -0200
commite32fadc4c2e5975a8e40541e2ba72a7032ed4cf4 (patch)
tree7718a6d3d28f6e70d8c51e8ef0eef72022935c19 /drivers/media/video/cx88/Kconfig
parent571d864c68d429a82fd61e97404a2de210ffc72d (diff)
V4L/DVB (10190): cx88: Fix some Kbuild troubles
As Randy Dunlap <randy.dunlap@oracle.com> reported, cx88 has some compilation issues: drivers/built-in.o: In function `cx88_call_i2c_clients': (.text+0x20af17): undefined reference to `videobuf_dvb_get_frontend' drivers/built-in.o: In function `cx8802_probe': cx88-mpeg.c:(.devinit.text+0x268c4): undefined reference to `videobuf_dvb_alloc_frontend' cx88-mpeg.c:(.devinit.text+0x268ea): undefined reference to `videobuf_dvb_dealloc_frontends' With those configs: CONFIG_VIDEO_CX88=y CONFIG_VIDEO_CX88_BLACKBIRD=y CONFIG_VIDEO_CX88_DVB=m CONFIG_DVB_CORE=m After carefully examining the code, with the current code, several cx88 drivers (cx8800, cx8802, cx88_dvb and cx88_blackbird) should be compiled as a module, if one of them is marked as such. Just fixing Kconfig could create a very complex set of rules. Also, this hides a problem with the current approach where the dvb functionality weren't confined inside dvb module. What happens is that: - cx88-i2c (part of cx8800) has some special rules if DVB; - cx88-mpeg (cx8802 module) has also part of DVB init code; - cx88-dvb has the rest of the dvb code; - cx88-blackbird can be used with cx88-mpeg, having cx88-dvb or not. So, instead of doing some tricks at Kconfig and wait for a next breakage, this patch moves the dvb code inside cx88-i2c and cx88-mpeg into cx88-dvb. Another problem is that cx8802 were being compiled, even without cx88-dvb and cx88-blackbird modules. While on this code, let's fix also a reported problem: http://www.linuxtv.org/pipermail/linux-dvb/2009-January/031225.html A solution for the issue were proposed here: http://www.mail-archive.com/linux-media@vger.kernel.org/msg00021.html Thanks to Randy, Andy, Gregoire and Thomas for helping us to detect and solve the issues. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx88/Kconfig')
-rw-r--r--drivers/media/video/cx88/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/video/cx88/Kconfig b/drivers/media/video/cx88/Kconfig
index b0f837588e0..2d250a2a7bc 100644
--- a/drivers/media/video/cx88/Kconfig
+++ b/drivers/media/video/cx88/Kconfig
@@ -69,6 +69,11 @@ config VIDEO_CX88_DVB
To compile this driver as a module, choose M here: the
module will be called cx88-dvb.
+config VIDEO_CX88_MPEG
+ tristate
+ depends on VIDEO_CX88_DVB || VIDEO_CX88_BLACKBIRD
+ default y
+
config VIDEO_CX88_VP3054
tristate "VP-3054 Secondary I2C Bus Support"
default m