Re: [Qemu-devel] [PATCH 04/11] qerror: Eliminate QERR_DEVICE_NOT_FOUND

[Markus Armbruster]

Eric Blake <address@hidden> writes:

> On 06/13/2015 08:20 AM, Markus Armbruster wrote:
>> Error classes other than ERROR_CLASS_GENERIC_ERROR should not be used
>> in new code.  Hiding them in QERR_ macros makes new uses hard to spot.
>> Fortunately, there's just one such macro left.  Eliminate it with this
>> coccinelle semantic patch:
>> 
>>     @@
>>     expression EP, E;
>>     @@
>>     -error_set(EP, QERR_DEVICE_NOT_FOUND, E)
>>     +error_set(EP, ERROR_CLASS_DEVICE_NOT_FOUND, "Device '%s' not found", E)
>> 
>> Signed-off-by: Markus Armbruster <address@hidden>
>> ---
>>  backends/rng-egd.c        |  3 ++-
>>  blockdev-nbd.c            |  3 ++-
>>  blockdev.c                | 33 ++++++++++++++++++++++-----------
>>  hmp.c                     |  6 ++++--
>>  include/qapi/qmp/qerror.h |  3 ---
>>  net/net.c                 |  6 ++++--
>>  qdev-monitor.c            |  6 ++++--
>>  qmp.c                     | 12 ++++++++----
>>  qom/object.c              |  6 ++++--
>>  ui/input.c                |  3 ++-
>>  10 files changed, 52 insertions(+), 29 deletions(-)
>
> Plain transformation would be closer to a 1:1 insertion/deletion count.
>  The larger insertion count is due to reflowing long lines after the
> transformation.  Does coccinelle do that for you, or do you have to
> touch things up manually?

It does, and most of the time it's a relief.

>                            But I'm okay with the result.
>
> Reviewed-by: Eric Blake <address@hidden>

Thanks!