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x86/Kconfig: Fix an unused variable error in dell-smm-hwmon

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commit ef775a0e36 upstream.

When CONFIG_PROC_FS is not set, there is a build warning (turned
into an error):

  ../drivers/hwmon/dell-smm-hwmon.c: In function 'i8k_init_procfs':
  ../drivers/hwmon/dell-smm-hwmon.c:624:24: error: unused variable 'data' [-Werror=unused-variable]
    struct dell_smm_data *data = dev_get_drvdata(dev);

Make I8K depend on PROC_FS and HWMON (instead of selecting HWMON -- it
is strongly preferred to not select entire subsystems).

Build tested in all possible combinations of SENSORS_DELL_SMM, I8K, and
PROC_FS.

Fixes: 039ae58503 ("hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lkml.kernel.org/r/20210910071921.16777-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Randy Dunlap
2021-09-10 00:19:21 -07:00
committed by Greg Kroah-Hartman
parent 2ec78af152
commit b3ef5051a7
1 changed files with 2 additions and 1 deletions
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3
arch/x86/Kconfig
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@@ -1266,7 +1266,8 @@ config TOSHIBA
config I8K
tristate "Dell i8k legacy laptop support"
select HWMON
depends on HWMON
depends on PROC_FS
select SENSORS_DELL_SMM
help
This option enables legacy /proc/i8k userspace interface in hwmon