linux-kernel - [PATCH 0/6] dell-smm-hwmon fixes

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Date:	Sat, 18 Jun 2016 00:54:43 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Jan C Peters <jcpeters89@...il.com>,
	Thorsten Leemhuis <fedora@...mhuis.info>,
	David Santamaría Rogado <howl.nsp@...il.com>,
	Peter Saunderson <peteasa@...il.com>,
	Tolga Cakir <cevelnet@...il.com>,
	"Austin S. Hemmelgarn" <ahferroin7@...il.com>,
	Mario_Limonciello@...l.com,
	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Michał Kępień <kernel@...pniu.pl>,
	Dakota Whipple <dakotajaywhipple@...il.com>,
	Leon Yu <leon@...nyu.net>
Cc:	linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
	Pali Rohár <pali.rohar@...il.com>
Subject: [PATCH 0/6] dell-smm-hwmon fixes

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 Rohár (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(-)

-- 
1.7.9.5