On Mon, Feb 01, 2021 at 08:24:17PM +0100, Thomas Gleixner wrote:
> The recent change to validate the RTC turned out to be overly tight.
>
> While it cures the problem on the reporters machine it breaks machines
> with Intel chipsets which use bit 0-5 of the D register. So check only
> for bit 6 being 0 which is the case on these Intel machines as well.
>
> Fixes: 211e5db19d15 ("rtc: mc146818: Detect and handle broken RTCs")
> Reported-by: Serge Belyshev <belyshev@xxxxxxxxxxxxxxxxx>
> Reported-by: Dirk Gouders <dirk@xxxxxxxxxxx>
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> ---
> V2: Provide the actual delta patch. Should have stayed away from
> computers today....
> ---
> drivers/rtc/rtc-cmos.c | 4 ++--
> drivers/rtc/rtc-mc146818-lib.c | 4 ++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
FWIW:
Reported-by: Borislav Petkov <bp@xxxxxxx>
Tested-by: Borislav Petkov <bp@xxxxxxx>
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
