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authorIngo Molnar <mingo@elte.hu>2008-05-20 19:34:09 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-06-05 06:35:53 -0300
commit6637dea60ec93916ea0623a0e9bcc2b1769cbc11 (patch)
tree427a5f49390e5237d2635c06ccb125f57ad6db1a /drivers
parent18dcd55a8bf8aa7009c647725b5234c9589c6985 (diff)
V4L/DVB (7974): fix MEDIA_TUNER && FW_LOADER build error
-tip testing found the following build failure: LD .tmp_vmlinux1 drivers/built-in.o: In function `generic_set_freq': tuner-xc2028.c:(.text+0xbd896): undefined reference to `request_firmware' tuner-xc2028.c:(.text+0xbdd7a): undefined reference to `release_firmware' drivers/built-in.o: In function `xc_load_fw_and_init_tuner': xc5000.c:(.text+0xc68e6): undefined reference to `request_firmware' xc5000.c:(.text+0xc6abe): undefined reference to `release_firmware' with this config: http://redhat.com/~mingo/misc/config-Tue_May_20_18_11_34_CEST_2008.bad the reason is another kconfig tool bug that has to be worked around in the driver's Kconfig file: if FW_LOADER is selected in a second dependency, that is not properly propagated up the dependencies. in this case, FW_LOADER is selected from MEDIA_TUNER_XC2028: config MEDIA_TUNER_XC2028 tristate "XCeive xc2028/xc3028 tuners" depends on VIDEO_MEDIA && I2C depends on HOTPLUG select FW_LOADER which got selected by MEDIA_TUNER: config MEDIA_TUNER tristate default VIDEO_MEDIA && I2C depends on VIDEO_MEDIA && I2C select FW_LOADER if !MEDIA_TUNER_CUSTOMIZE && HOTPLUG but the kconfig tool did not pick up this second-order dependency and allowed CONFIG_FW_LOADER=m to be selected - in which case the build fails. the workaround i found was to move the select of FW_LOADER one level up, so that the buggy kconfig tool can notice it and can act appropriately. This problem can probably be worked around in other ways as well, i went for the minimal fix. Obviously, the kconfig tool should be fixed, it is not reasonable to expect driver authors to do manual dependency resolution (that kconfig itself already does) and uglify the Kconfig files. The kconfig tool did nothing to warn about this situation and did not prevent this faulty .config from being constructed. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/common/tuners/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig
index d6206540476b..85482960d012 100644
--- a/drivers/media/common/tuners/Kconfig
+++ b/drivers/media/common/tuners/Kconfig
@@ -21,6 +21,7 @@ config MEDIA_TUNER
tristate
default VIDEO_MEDIA && I2C
depends on VIDEO_MEDIA && I2C
+ select FW_LOADER if !MEDIA_TUNER_CUSTOMIZE && HOTPLUG
select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMIZE && HOTPLUG
select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMIZE && HOTPLUG
select MEDIA_TUNER_MT20XX if !MEDIA_TUNER_CUSTOMIZE

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