Revision e9338abf0e186336022293d2e454c106761f262b authored by Linus Torvalds on 15 July 2021, 20:57:31 UTC, committed by Linus Torvalds on 15 July 2021, 20:57:31 UTC
Pull fallthrough fixes from Gustavo Silva:
 "This fixes many fall-through warnings when building with Clang and
  -Wimplicit-fallthrough, and also enables -Wimplicit-fallthrough for
  Clang, globally.

  It's also important to notice that since we have adopted the use of
  the pseudo-keyword macro fallthrough, we also want to avoid having
  more /* fall through */ comments being introduced. Contrary to GCC,
  Clang doesn't recognize any comments as implicit fall-through markings
  when the -Wimplicit-fallthrough option is enabled.

  So, in order to avoid having more comments being introduced, we use
  the option -Wimplicit-fallthrough=5 for GCC, which similar to Clang,
  will cause a warning in case a code comment is intended to be used as
  a fall-through marking. The patch for Makefile also enforces this.

  We had almost 4,000 of these issues for Clang in the beginning, and
  there might be a couple more out there when building some
  architectures with certain configurations. However, with the recent
  fixes I think we are in good shape and it is now possible to enable
  the warning for Clang"

* tag 'Wimplicit-fallthrough-clang-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (27 commits)
  Makefile: Enable -Wimplicit-fallthrough for Clang
  powerpc/smp: Fix fall-through warning for Clang
  dmaengine: mpc512x: Fix fall-through warning for Clang
  usb: gadget: fsl_qe_udc: Fix fall-through warning for Clang
  powerpc/powernv: Fix fall-through warning for Clang
  MIPS: Fix unreachable code issue
  MIPS: Fix fall-through warnings for Clang
  ASoC: Mediatek: MT8183: Fix fall-through warning for Clang
  power: supply: Fix fall-through warnings for Clang
  dmaengine: ti: k3-udma: Fix fall-through warning for Clang
  s390: Fix fall-through warnings for Clang
  dmaengine: ipu: Fix fall-through warning for Clang
  iommu/arm-smmu-v3: Fix fall-through warning for Clang
  mmc: jz4740: Fix fall-through warning for Clang
  PCI: Fix fall-through warning for Clang
  scsi: libsas: Fix fall-through warning for Clang
  video: fbdev: Fix fall-through warning for Clang
  math-emu: Fix fall-through warning
  cpufreq: Fix fall-through warning for Clang
  drm/msm: Fix fall-through warning in msm_gem_new_impl()
  ...
2 parent s dd9c7df + b7eb335
History
File Mode Size
Kconfig -rw-r--r-- 9.5 KB
Makefile -rw-r--r-- 1.3 KB
altera_ps2.c -rw-r--r-- 3.6 KB
ambakmi.c -rw-r--r-- 4.2 KB
ams_delta_serio.c -rw-r--r-- 5.0 KB
apbps2.c -rw-r--r-- 5.4 KB
arc_ps2.c -rw-r--r-- 6.2 KB
ct82c710.c -rw-r--r-- 5.7 KB
gscps2.c -rw-r--r-- 11.3 KB
hil_mlc.c -rw-r--r-- 25.2 KB
hp_sdc.c -rw-r--r-- 28.4 KB
hp_sdc_mlc.c -rw-r--r-- 9.1 KB
hyperv-keyboard.c -rw-r--r-- 10.3 KB
i8042-io.h -rw-r--r-- 1.7 KB
i8042-ip22io.h -rw-r--r-- 1.3 KB
i8042-jazzio.h -rw-r--r-- 1.1 KB
i8042-snirm.h -rw-r--r-- 1.3 KB
i8042-sparcio.h -rw-r--r-- 3.5 KB
i8042-x86ia64io.h -rw-r--r-- 30.0 KB
i8042.c -rw-r--r-- 37.7 KB
i8042.h -rw-r--r-- 1.9 KB
ioc3kbd.c -rw-r--r-- 4.5 KB
libps2.c -rw-r--r-- 11.0 KB
maceps2.c -rw-r--r-- 5.2 KB
olpc_apsp.c -rw-r--r-- 7.0 KB
parkbd.c -rw-r--r-- 5.5 KB
pcips2.c -rw-r--r-- 4.6 KB
ps2-gpio.c -rw-r--r-- 10.5 KB
ps2mult.c -rw-r--r-- 6.6 KB
q40kbd.c -rw-r--r-- 3.7 KB
rpckbd.c -rw-r--r-- 3.3 KB
sa1111ps2.c -rw-r--r-- 8.1 KB
serio.c -rw-r--r-- 24.0 KB
serio_raw.c -rw-r--r-- 9.7 KB
serport.c -rw-r--r-- 7.1 KB
sun4i-ps2.c -rw-r--r-- 8.6 KB
userio.c -rw-r--r-- 6.5 KB
xilinx_ps2.c -rw-r--r-- 10.4 KB

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