linux-stable.git/drivers/misc/Makefile, branch linux-4.9.y

lkdtm: turn off kcov for lkdtm_rodata_do_nothing:

2018-03-22T08:17:49+00:00

[ Upstream commit 7064dc7fc13b2994d33ae540ffb7a3a05ac463bf ]

I ran into a link error on ARM64 for lkdtm_rodata_do_nothing:

drivers/misc/built-in.o: In function `lkdtm_rodata_do_nothing':
:(.rodata+0x68c8): relocation truncated to fit: R_AARCH64_CALL26 against symbol `__sanitizer_cov_trace_pc' defined in .text section in kernel/built-in.o

I did not analyze this further, but my theory is that we would need a trampoline
to call __sanitizer_cov_trace_pc(), but the linker (correctly) only adds trampolines
for callers in executable sections.

Disabling KCOV for this one file avoids the build failure with no
other practical downsides I can think of.

The problem can only happen on kernels that contain both kcov and
lkdtm, so if we want to backport this, it should be in the earliest
version that has both (v4.8).

Fixes: 5c9a8750a640 ("kernel: add kcov code coverage")
Fixes: 9a49a528dcf3 ("lkdtm: add function for testing .rodata section")
Signed-off-by: Arnd Bergmann 
Acked-by: Dmitry Vyukov 
Acked-by: Kees Cook 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

Merge 4.8-rc5 into char-misc-next

2016-09-05T06:04:07+00:00

We want the fixes in here for merging and testing.

Signed-off-by: Greg Kroah-Hartman

misc: retire the old BMP085 driver

2016-08-31T12:11:33+00:00

Patches merged to the IIO BMP085 driver makes it fully compliant
with all features found in this old misc driver. Retire this old
driver in favor of the new one in the proper subsystem.

Cc: Jonathan Cameron 
Cc: Marek Belisko 
Acked-by: H. Nikolaus Schaller 
Signed-off-by: Linus Walleij 
Acked-by: Arnd Bergmann 
Signed-off-by: Greg Kroah-Hartman

misc: delete bh1780 driver

2016-08-15T13:48:23+00:00

The Rohm BH1780 ambient light sensor has a new driver with extended
functionality (proper runtime PM) in the appropriate framework IIO,
it can be found at:
drivers/iio/light/bh1780.c

The MISC driver symbol CONFIG_SENSORS_BH1780 does not appear in any
defconfigs, so it should safe to delete.

Cc: Hemanth V 
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman

lkdtm: Fix targets for objcopy usage

2016-08-01T21:27:24+00:00

The targets for lkdtm's objcopy were missing which caused them to always
be rebuilt. This corrects the problem.

Reported-by: Linus Torvalds 
Signed-off-by: Kees Cook

lkdtm: split remaining logic bug tests to separate file

2016-07-07T18:09:22+00:00

This splits all the remaining tests from lkdtm_core.c into the new
lkdtm_bugs.c file to help separate things better for readability.

Signed-off-by: Kees Cook

lkdtm: split heap corruption tests to separate file

2016-07-07T18:09:22+00:00

This splits the *_AFTER_FREE and related tests into the new lkdtm_heap.c
file to help separate things better for readability.

Signed-off-by: Kees Cook

lkdtm: split memory permissions tests to separate file

2016-07-07T18:09:21+00:00

This splits the EXEC_*, WRITE_* and related tests into the new lkdtm_perms.c
file to help separate things better for readability.

Signed-off-by: Kees Cook

lkdtm: split usercopy tests to separate file

2016-07-07T18:09:20+00:00

This splits the USERCOPY_* tests into the new lkdtm_usercopy.c file to
help separate things better for readability.

Signed-off-by: Kees Cook

lkdtm: add function for testing .rodata section

2016-06-10T22:57:50+00:00

This adds a function that lives in the .rodata section. The section
flags are corrected using objcopy since there is no way with gcc to
declare section flags in an architecture-agnostic way.

Signed-off-by: Kees Cook