[PATCH v11 0/8] error: auto propagated local_err part I

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Based-on: <20200702155000.3455325-1-armbru@redhat.com>

v11: (based-on "[PATCH v2 00/44] Less clumsy error checking")
01: minor rebase of documentation, keep r-bs
02: - minor comment tweaks [Markus]
    - use explicit file name in MAINTAINERS instead of pattern
    - add Markus's r-b
03,07,08: rabase changes, drop r-bs


v11 is available at
 https://src.openvz.org/scm/~vsementsov/qemu.git #tag up-auto-local-err-partI-v11
v10 is available at
 https://src.openvz.org/scm/~vsementsov/qemu.git #tag up-auto-local-err-partI-v10

In these series, there is no commit-per-subsystem script, each generated
commit is generated in separate.

Still, generating commands are very similar, and looks like

    sed -n '/^<Subsystem name>$/,/^$/{s/^F: //p}' MAINTAINERS | \
    xargs git ls-files | grep '\.[hc]$' | \
    xargs spatch \
        --sp-file scripts/coccinelle/auto-propagated-errp.cocci \
        --macro-file scripts/cocci-macro-file.h \
        --in-place --no-show-diff --max-width 80

Note, that in each generated commit, generation command is the only
text, indented by 8 spaces in 'git log -1' output, so, to regenerate all
commits (for example, after rebase, or change in coccinelle script), you
may use the following command:

git rebase -x "sh -c \"git show --pretty= --name-only | xargs git checkout HEAD^ -- ; git reset; git log -1 | grep '^        ' | sh\"" HEAD~6

Which will start automated interactive rebase for generated patches,
which will stop if generated patch changed
(you may do git commit --amend to apply updated generated changes).

Note:
  git show --pretty= --name-only   - lists files, changed in HEAD
  git log -1 | grep '^        ' | sh   - rerun generation command of HEAD


Check for compilation of changed .c files
git rebase -x "sh -c \"git show --pretty= --name-only | sed -n 's/\.c$/.o/p' | xargs make -j9\"" HEAD~6

Vladimir Sementsov-Ogievskiy (8):
  error: auto propagated local_err
  scripts: Coccinelle script to use ERRP_AUTO_PROPAGATE()
  SD (Secure Card): introduce ERRP_AUTO_PROPAGATE
  pflash: introduce ERRP_AUTO_PROPAGATE
  fw_cfg: introduce ERRP_AUTO_PROPAGATE
  virtio-9p: introduce ERRP_AUTO_PROPAGATE
  nbd: introduce ERRP_AUTO_PROPAGATE
  xen: introduce ERRP_AUTO_PROPAGATE

 scripts/coccinelle/auto-propagated-errp.cocci | 337 ++++++++++++++++++
 include/block/nbd.h                           |   1 +
 include/qapi/error.h                          | 208 +++++++++--
 block/nbd.c                                   |   7 +-
 hw/9pfs/9p-local.c                            |  12 +-
 hw/9pfs/9p.c                                  |   1 +
 hw/block/dataplane/xen-block.c                |  17 +-
 hw/block/pflash_cfi01.c                       |   7 +-
 hw/block/pflash_cfi02.c                       |   7 +-
 hw/block/xen-block.c                          | 102 +++---
 hw/nvram/fw_cfg.c                             |  14 +-
 hw/pci-host/xen_igd_pt.c                      |   7 +-
 hw/sd/sdhci-pci.c                             |   7 +-
 hw/sd/sdhci.c                                 |  21 +-
 hw/sd/ssi-sd.c                                |  10 +-
 hw/xen/xen-backend.c                          |   7 +-
 hw/xen/xen-bus.c                              |  92 ++---
 hw/xen/xen-host-pci-device.c                  |  27 +-
 hw/xen/xen_pt.c                               |  25 +-
 hw/xen/xen_pt_config_init.c                   |  17 +-
 nbd/client.c                                  |   5 +
 nbd/server.c                                  |   5 +
 MAINTAINERS                                   |   1 +
 23 files changed, 690 insertions(+), 247 deletions(-)
 create mode 100644 scripts/coccinelle/auto-propagated-errp.cocci

Cc: Eric Blake <eblake@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Greg Kurz <groug@kaod.org>
Cc: Christian Schoenebeck <qemu_oss@crudebyte.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Paul Durrant <paul@xen.org>
Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Michael Roth <mdroth@linux.vnet.ibm.com>
Cc: qemu-devel@nongnu.org
Cc: qemu-block@nongnu.org
Cc: xen-devel@lists.xenproject.org

-- 
2.21.0