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authorMatt Fleming <matt.fleming@intel.com>2014-10-03 13:06:33 +0100
committerMatt Fleming <matt.fleming@intel.com>2014-10-03 21:24:17 +0100
commit7efe665903d0d963b0ebf4cab25cc3ae32c62600 (patch)
tree333c56315d4d087469a963a5c68303c60434de06 /drivers/rtc
parent3f71f6da7791a5feae0ff07e718431d1df01273a (diff)
rtc: Disable EFI rtc for x86
commit da167ad7638759 ("rtc: ia64: allow other architectures to use EFI RTC") inadvertently introduced a regression for x86 because we've been careful not to enable the EFI rtc driver due to the generally buggy implementations of the time-related EFI runtime services. In fact, since the above commit was merged we've seen reports of crashes on 32-bit tablets, https://bugzilla.kernel.org/show_bug.cgi?id=84241#c21 Disable it explicitly for x86 so that we don't give users false hope that this driver will work - it won't, and your machine is likely to crash. Acked-by: Mark Salter <msalter@redhat.com> Cc: Dave Young <dyoung@redhat.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> # v3.17 Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index a168e96142b9..54ef393b0def 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -806,7 +806,7 @@ config RTC_DRV_DA9063
config RTC_DRV_EFI
tristate "EFI RTC"
- depends on EFI
+ depends on EFI && !X86
help
If you say yes here you will get support for the EFI
Real Time Clock.