linux-toradex.git/Documentation, branch v4.1.5

hwmon: (nct7904) Rename pwm attributes to match hwmon ABI

2015-08-10T19:21:58+00:00

commit 0d6aaffc3a6db642e0a165ba4d17d6d7bbaf5201 upstream.

pwm attributes have well defined names, which should be used.

Cc: Vadim V. Vlasov 
Signed-off-by: Guenter Roeck 
Signed-off-by: Greg Kroah-Hartman

kbuild: Allow arch Makefiles to override {cpp,ld,c}flags

2015-08-10T19:21:52+00:00

commit 61754c18752ffb78145671e94f053fb202fff041 upstream.

Since commit a1c48bb1 (Makefile: Fix unrecognized cross-compiler command
line options), the arch Makefile is included earlier by the main
Makefile, preventing the arc architecture to set its -O3 compiler
option. Since there might be more use cases for an arch Makefile to
fine-tune the options, add support for ARCH_CPPFLAGS, ARCH_AFLAGS and
ARCH_CFLAGS variables that are appended to the respective kbuild
variables. The user still has the final say via the KCPPFLAGS, KAFLAGS
and KCFLAGS variables.

Reported-by: Vineet Gupta 
Signed-off-by: Michal Marek 
Signed-off-by: Greg Kroah-Hartman

ima: update builtin policies

2015-08-03T16:29:12+00:00

commit 24fd03c87695a76f0517df42a37e51b1597d2c8a upstream.

This patch defines a builtin measurement policy "tcb", similar to the
existing "ima_tcb", but with additional rules to also measure files
based on the effective uid and to measure files opened with the "read"
mode bit set (eg. read, read-write).

Changing the builtin "ima_tcb" policy could potentially break existing
users.  Instead of defining a new separate boot command line option each
time the builtin measurement policy is modified, this patch defines a
single generic boot command line option "ima_policy=" to specify the
builtin policy and deprecates the use of the builtin ima_tcb policy.

[The "ima_policy=" boot command line option is based on Roberto Sassu's
"ima: added new policy type exec" patch.]

Signed-off-by: Mimi Zohar 
Signed-off-by: Dr. Greg Wettstein 
Signed-off-by: Greg Kroah-Hartman

ima: extend "mask" policy matching support

2015-08-03T16:29:12+00:00

commit 4351c294b8c1028077280f761e158d167b592974 upstream.

The current "mask" policy option matches files opened as MAY_READ,
MAY_WRITE, MAY_APPEND or MAY_EXEC.  This patch extends the "mask"
option to match files opened containing one of these modes.  For
example, "mask=^MAY_READ" would match files opened read-write.

Signed-off-by: Mimi Zohar 
Signed-off-by: Dr. Greg Wettstein 
Signed-off-by: Greg Kroah-Hartman

ima: add support for new "euid" policy condition

2015-08-03T16:29:12+00:00

commit 139069eff7388407f19794384c42a534d618ccd7 upstream.

The new "euid" policy condition measures files with the specified
effective uid (euid).  In addition, for CAP_SETUID files it measures
files with the specified uid or suid.

Changelog:
- fixed checkpatch.pl warnings
- fixed avc denied {setuid} messages - based on Roberto's feedback

Signed-off-by: Mimi Zohar 
Signed-off-by: Dr. Greg Wettstein 
Signed-off-by: Greg Kroah-Hartman

ima: do not measure or appraise the NSFS filesystem

2015-08-03T16:29:12+00:00

commit cd025f7f94108995383edddfb61fc8afea6c66a9 upstream.

Include don't appraise or measure rules for the NSFS filesystem
in the builtin ima_tcb and ima_appraise_tcb policies.

Changelog:
- Update documentation

Signed-off-by: Mimi Zohar 
Signed-off-by: Greg Kroah-Hartman

ima: skip measurement of cgroupfs files and update documentation

2015-08-03T16:29:11+00:00

commit 6438de9f3fb5180d78a0422695d0b88c687757d3 upstream.

This patch adds a rule in the default measurement policy to skip inodes
in the cgroupfs filesystem. Measurements for this filesystem can be
avoided, as all the digests collected have the same value of the digest of
an empty file.

Furthermore, this patch updates the documentation of IMA policies in
Documentation/ABI/testing/ima_policy to make it consistent with
the policies set in security/integrity/ima/ima_policy.c.

Signed-off-by: Roberto Sassu 
Signed-off-by: Mimi Zohar 
Signed-off-by: Greg Kroah-Hartman

ARM: at91/dt: trivial: fix USB udc compatible string

2015-08-03T16:29:07+00:00

commit 50f0a44991516b5b9744ecb2c080c2ec6ad21b25 upstream.

To please checkpatch and the tiresome reader, add the "atmel," prefix to the
USB udc compatible string.

Signed-off-by: Nicolas Ferre 
Signed-off-by: Kevin Hilman 
Signed-off-by: Greg Kroah-Hartman

libata: Expose TRIM capability in sysfs

2015-08-03T16:29:04+00:00

commit f303074160d3401970ccae082014e1ee5a9a52c5 upstream.

Create a sysfs "trim" attribute for each ata_device that displays
whether DSM TRIM is "unsupported", "unqueued", "forced_unqueued"
(blacklisted) or "queued".

Signed-off-by: Martin K. Petersen 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman

iio: ABI: Clarify proximity output value

2015-08-03T16:29:02+00:00

commit bdc10d57f236b534fb675a4bbefd10017aeb2b26 upstream.

Current description for proximity measurement is ambiguous. While
the first part says that proximity is measured by observing
reflectivity, the second part incorrectly infers that reported values
should behave like a distance.

This is because of AS3935 lightning sensor which uses the proximity
API, while not being a true proximity sensor.

Note this is marked for stable as it accompanies a fix in ABI usage
to the sx9500 driver which would otherwise appear to be correct.

Fixes:  614e8842ddf ("iio: ABI: add clarification for proximity")
Signed-off-by: Daniel Baluta 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman