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[Qemu-devel] [PATCH v2 0/5] muldiv64() trivial fixes


From: Laurent Vivier
Subject: [Qemu-devel] [PATCH v2 0/5] muldiv64() trivial fixes
Date: Mon, 9 May 2016 15:24:54 +0200

Some fixes in the use of muldiv64()

The patches have been generated with the help of coccinelle.

The first patch contains the scripts used to generate the two following
patches. As it is done for linux, I've added the scripts under
scripts/coccinelle.

v2:
- rework scripts/coccinelle/swap_muldiv64.cocci, to simplify it
- add overflow_muldiv64.cocci and simplify_muldiv64.cocci
- add resulting patches

Laurent Vivier (5):
  scripts: add muldiv64() checking coccinelle scripts
  The only 64bit parameter of muldiv64() is the first one.
  remove useless muldiv64()
  replace muldiv64(a, b, c) by (uint64_t)a * b / c
  ppc: Remove a potential overflow in muldiv64()

 hw/audio/gus.c                             |  2 +-
 hw/ppc/ppc.c                               |  2 +-
 hw/timer/omap_gptimer.c                    |  4 ++--
 hw/usb/hcd-ohci.c                          |  2 +-
 hw/xtensa/pic_cpu.c                        |  4 ++--
 scripts/coccinelle/overflow_muldiv64.cocci | 16 ++++++++++++++++
 scripts/coccinelle/remove_muldiv64.cocci   |  6 ++++++
 scripts/coccinelle/simplify_muldiv64.cocci | 11 +++++++++++
 scripts/coccinelle/swap_muldiv64.cocci     | 13 +++++++++++++
 9 files changed, 53 insertions(+), 7 deletions(-)
 create mode 100644 scripts/coccinelle/overflow_muldiv64.cocci
 create mode 100644 scripts/coccinelle/remove_muldiv64.cocci
 create mode 100644 scripts/coccinelle/simplify_muldiv64.cocci
 create mode 100644 scripts/coccinelle/swap_muldiv64.cocci

-- 
2.5.5




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