diff mbox series

[4.4-stable,06/22] idle: i7300: add PCI dependency

Message ID 20180220115527.1806578-7-arnd@arndb.de
State New
Headers show
Series [4.4-stable,01/22] gpio: xgene: mark PM functions as __maybe_unused | expand

Commit Message

Arnd Bergmann Feb. 20, 2018, 11:54 a.m. UTC 
GCC correctly points out an uninitialized variable use when CONFIG_PCI is disabled.

drivers/idle/i7300_idle.c: In function 'i7300_idle_notifier':
include/asm-generic/bug.h:119:5: error: 'got_ctl' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  if (unlikely(__ret_warn_once && !__warned)) {  \
     ^
drivers/idle/i7300_idle.c:415:5: note: 'got_ctl' was declared here
  u8 got_ctl;
     ^~~~~~~

The driver no longer exists in later kernels, so this patch only appplies to
linux-4.9.y and earlier.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

---
 drivers/idle/Kconfig | 1 +
 1 file changed, 1 insertion(+)

-- 
2.9.0
diff mbox series

Patch

diff --git a/drivers/idle/Kconfig b/drivers/idle/Kconfig
index 4732dfc15447..331adc509f3a 100644
--- a/drivers/idle/Kconfig
+++ b/drivers/idle/Kconfig
@@ -17,6 +17,7 @@  config I7300_IDLE_IOAT_CHANNEL
 
 config I7300_IDLE
 	tristate "Intel chipset idle memory power saving driver"
+	depends on PCI
 	select I7300_IDLE_IOAT_CHANNEL
 	help
 	  Enable memory power savings when idle with certain Intel server