[PATCH v3 0/7] silence the compiler warnings

[Chen Qun]

Hi folks,
  This series fix some "fall through" warnings reported by GCC_9.3. They've 
been 
reviewed for a long time. Some of these patchs may be important for QEMU 5.2. 
Such as the Patch6 miss a break statement. Others only add "fall through" 
comments and may not have a negative impact for QEMU 5.2.


Thanks,
Chen Qun


Since v2:
- Patch3：Add Richard Henderson、Philippe Mathieu-Daudé and Thomas Huth reviewed 
tag.
- Patch4: Laurent pull it to master, remove it.
- Patch6->Patch5: Add Richard Henderson and Philippe Mathieu-Daudé reviewed tag.
- Patch7->Patch6: Add Thomas Huth reviewed tag and David Gibson acked tag.
- Patch8->Patch7: Tweak LOG_UNIMP message base on Thomas Huth comment; 
  Add Philippe Mathieu-Daudé and Thomas Huth reviewed tag; Add David Gibson 
acked tag.

Since v1:
- Patch1: Add comments to explain the two case of fall through.
  Addressed Richard Henderson and Thomas Huth review comment.
- Patch2: Addressed Peter Maydell review comment.
- Patch3: Add QEMU_NORETURN to cpu_exit_tb_from_sighandler() function to
  avoid the compiler warnings.
- Patch4: Addressed Thomas Huth review comment.
- Patch5: Addressed Artyom Tarasenko and Philippe Mathieu-Daudé review
  comment.
- Patch6: Combine the /* fall through */ to the preceding comments.
  Addressed  Artyom Tarasenko review comment.
- Patch7: Add a "break" statement here instead of /* fall through */
  comments.
- Patch8: Replace the TODO by a LOG_UNIMP call and add break statement
- Patch9: Discard this patch since a patch already exists for fix this 
  issue(https://lore.kernel.org/qemu-devel/20200711154242.41222-1-ysato@users)


Chen Qun (7):
  target/i386: silence the compiler warnings in gen_shiftd_rm_T1
  hw/intc/arm_gicv3_kvm: silence the compiler warnings
  accel/tcg/user-exec: silence the compiler warnings
  target/sparc/translate: silence the compiler warnings
  target/sparc/win_helper: silence the compiler warnings
  ppc: Add a missing break for PPC6xx_INPUT_TBEN
  target/ppc: replaced the TODO with LOG_UNIMP and add break for silence
    warnings

 accel/tcg/user-exec.c     | 3 ++-
 hw/intc/arm_gicv3_kvm.c   | 8 ++++++++
 hw/ppc/ppc.c              | 1 +
 target/i386/translate.c   | 7 +++++--
 target/ppc/mmu_helper.c   | 5 +++--
 target/sparc/translate.c  | 2 +-
 target/sparc/win_helper.c | 2 +-
 7 files changed, 21 insertions(+), 7 deletions(-)

-- 
2.27.0