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| author | Arnd Bergmann <arnd@arndb.de> | 2016-11-24 14:25:38 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-02-03 07:12:59 -0200 |
| commit | 30f895a9e1df6a44cef6e4e0fad70762026b8512 (patch) | |
| tree | ca3789ac7eecc84fe64b6408b7f5f77bf59e989b /drivers/media/common | |
| parent | 6689638025a91bd795204c01b25a561fa93f11e8 (diff) | |
| download | linux-stable-30f895a9e1df6a44cef6e4e0fad70762026b8512.tar.gz linux-stable-30f895a9e1df6a44cef6e4e0fad70762026b8512.tar.bz2 linux-stable-30f895a9e1df6a44cef6e4e0fad70762026b8512.zip | |
[media] b2c2: use IS_REACHABLE() instead of open-coding it
The FE_SUPPORTED() macro is basically the same as IS_REACHABLE, except
that it causes a warning with gcc-7:
common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
Using IS_REACHABLE() to define it avoids the warning.
Fixes: 3785bc170f79 ("[media] b2c2: break it into common/pci/usb directories")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/b2c2/flexcop-fe-tuner.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/media/common/b2c2/flexcop-fe-tuner.c b/drivers/media/common/b2c2/flexcop-fe-tuner.c index f5956402fc69..5f10151ecec9 100644 --- a/drivers/media/common/b2c2/flexcop-fe-tuner.c +++ b/drivers/media/common/b2c2/flexcop-fe-tuner.c @@ -24,8 +24,7 @@ /* Can we use the specified front-end? Remember that if we are compiled * into the kernel we can't call code that's in modules. */ -#define FE_SUPPORTED(fe) (defined(CONFIG_DVB_##fe) || \ - (defined(CONFIG_DVB_##fe##_MODULE) && defined(MODULE))) +#define FE_SUPPORTED(fe) IS_REACHABLE(CONFIG_DVB_ ## fe) #if FE_SUPPORTED(BCM3510) || (FE_SUPPORTED(CX24120) && FE_SUPPORTED(ISL6421)) static int flexcop_fe_request_firmware(struct dvb_frontend *fe, |