[PATCH 00/14] gcc-7 warnings

From: Arnd Bergmann
Date: Fri Jul 14 2017 - 05:27:15 EST


This series should shut up all warnings introduced by gcc-6 or gcc-7 on
today's linux-next, as observed in "allmodconfig" builds on x86,
arm and arm64.

I have sent some of these before, but some others are new, as I had
at some point disabled the -Wint-in-bool-context warning in my
randconfig testing and did not notice the other warnings.

I have another series to address all -Wformat-overflow warnings,
and one more patch to turn off the -Wformat-truncation warnings
unless we build with "make W=1". I'll send that separately.

Most of these are consist of trivial refactoring of the code to
shut up false-positive warnings, the one exception being
"staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read",
which fixes a regression against linux-3.1 that has gone
unnoticed since then. Still, review from subsystem maintainers
would be appreciated.

I would suggest that Andrew Morton can pick these up into linux-mm
so we can make sure they all make it into the release. Alternatively
Linus might feel like picking them all up himself.

While I did not mark the harmless ones for stable backports,
Greg may also want to pick them up once they go upstream, to
help build-test the stable kernels with gcc-7.

Arnd

Arnd Bergmann (14):
[SUBMITTED 20170511] ide: avoid warning for timings calculation
[SUBMITTED 20170511] ata: avoid gcc-7 warning in ata_timing_quantize
[SUBMITTED 20170314] drm/vmwgfx: avoid gcc-7 parentheses warning
x86: math-emu: avoid -Wint-in-bool-context warning
isdn: isdnloop: suppress a gcc-7 warning
acpi: thermal: fix gcc-6/ccache warning
proc/kcore: hide a harmless warning
Input: adxl34x - fix gcc-7 -Wint-in-bool-context warning
SFI: fix tautological-compare warning
staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read
IB/uverbs: fix gcc-7 type warning
drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning
iopoll: avoid -Wint-in-bool-context warning
[media] fix warning on v4l2_subdev_call() result interpreted as bool

arch/x86/math-emu/fpu_emu.h | 2 +-
drivers/acpi/processor_thermal.c | 6 ++++--
drivers/ata/libata-core.c | 20 ++++++++++----------
drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.c | 6 +++---
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 2 +-
drivers/ide/ide-timings.c | 18 +++++++++---------
drivers/infiniband/core/uverbs.h | 14 ++++++++------
drivers/input/misc/adxl34x.c | 2 +-
drivers/isdn/isdnloop/isdnloop.c | 2 +-
drivers/media/pci/cx18/cx18-ioctl.c | 6 ++++--
drivers/media/pci/saa7146/mxb.c | 5 +++--
drivers/media/platform/atmel/atmel-isc.c | 4 ++--
drivers/media/platform/atmel/atmel-isi.c | 4 ++--
drivers/media/platform/blackfin/bfin_capture.c | 4 ++--
drivers/media/platform/omap3isp/ispccdc.c | 5 +++--
drivers/media/platform/pxa_camera.c | 3 ++-
drivers/media/platform/rcar-vin/rcar-core.c | 2 +-
drivers/media/platform/rcar-vin/rcar-dma.c | 4 +++-
drivers/media/platform/soc_camera/soc_camera.c | 4 ++--
drivers/media/platform/stm32/stm32-dcmi.c | 4 ++--
drivers/media/platform/ti-vpe/cal.c | 6 ++++--
drivers/sfi/sfi_core.c | 9 ++++++---
drivers/staging/iio/resolver/ad2s1210.c | 2 +-
.../staging/media/atomisp/pci/atomisp2/atomisp_cmd.c | 13 +++++++------
fs/proc/kcore.c | 10 ++++++----
include/linux/iopoll.h | 6 ++++--
include/linux/regmap.h | 2 +-
27 files changed, 93 insertions(+), 72 deletions(-)

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2.9.0