Re: [PATCH 0/6] dell-smm-hwmon fixes

From: MichaÅ KÄpieÅ
Date: Wed Jun 22 2016 - 04:03:18 EST


> I'm sending all my dell-smm-hwmon patches in one series, because due to
> changes in code other patches depends on previous.
>
> First two patches fixes problem with old /proc/i8k file. Second is security
> fix and should be backported to all stable kernels (that problem was there
> always). I tested i8kctl tool (from i8kutils package) that it still works
> with these patches. Without root access for those security operations just
> showes '?' or '-1'.
>
> Third and fourth patches try to fix problem on machines with broken
> SMM/BIOS when calling function fan_type().
>
> Fifth is new feature and last sixth useful for debugging.
>
> Pali RohÃr (6):
> hwmon: (dell-smm) Fail in ioctl I8K_BIOS_VERSION when bios version is
> not a number
> hwmon: (dell-smm) Restrict fan control and serial number to
> CAP_SYS_ADMIN by default
> hwmon: (dell-smm) Disallow fan_type() calls on broken machines
> hwmon: (dell-smm) Cache fan_type() calls and change fan detection
> hwmon: (dell-smm) Detect fan with index=2
> hwmon: (dell-smm) In debug mode log duration of SMM calls
>
> drivers/hwmon/dell-smm-hwmon.c | 122 ++++++++++++++++++++++++++++++++--------
> 1 file changed, 99 insertions(+), 23 deletions(-)

On a Vostro V131 (BIOS A04):

Tested-by: MichaÅ KÄpieÅ <kernel@xxxxxxxxxx>

--
Best regards,
MichaÅ KÄpieÅ