Philippe Mathieu-Daudé <phi...@linaro.org> writes:
> Address the comment added in commit 4629ed1e98
> ("qerror: Finally unused, clean up"), from 2015:
>
> /*
> * These macros will go away, please don't use
> * in new code, and do not add new ones!
> */
>
> Mechanical transformation using:
>
> $ sed -i -e 's/QERR_IO_ERROR/"An IO error has occurred"/' \
> $(git grep -wl QERR_IO_ERROR)
>
> then manually removing the definition in include/qapi/qmp/qerror.h.
>
> Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
> Reviewed-by: Juan Quintela <quint...@redhat.com>
> ---
> include/qapi/qmp/qerror.h | 3 ---
> block/vmdk.c | 8 ++++----
> blockdev.c | 2 +-
> dump/win_dump.c | 4 ++--
> migration/savevm.c | 4 ++--
> softmmu/cpus.c | 4 ++--
> 6 files changed, 11 insertions(+), 14 deletions(-)
>
> diff --git a/include/qapi/qmp/qerror.h b/include/qapi/qmp/qerror.h
> index ac727d1c2d..d95c4b84b9 100644
> --- a/include/qapi/qmp/qerror.h
> +++ b/include/qapi/qmp/qerror.h
> @@ -17,9 +17,6 @@
> * add new ones!
> */
>
> -#define QERR_IO_ERROR \
> - "An IO error has occurred"
> -
> #define QERR_MIGRATION_ACTIVE \
> "There's a migration process in progress"
>
> diff --git a/block/vmdk.c b/block/vmdk.c
> index e90649c8bf..6779a181f0 100644
> --- a/block/vmdk.c
> +++ b/block/vmdk.c
> @@ -2246,12 +2246,12 @@ vmdk_init_extent(BlockBackend *blk, int64_t filesize,
> bool flat, bool compress,
> /* write all the data */
> ret = blk_co_pwrite(blk, 0, sizeof(magic), &magic, 0);
> if (ret < 0) {
> - error_setg(errp, QERR_IO_ERROR);
As far as I can tell, blk_co_pwrite() returns a negative errno code.
Which we throw away, and claim "IO error". I expect that to be
misleading at least sometimes.
I suspect the other uses of QERR_IO_ERROR are similarly problematic more
often than not.
Not your patch's problem, of course.
> + error_setg(errp, "An IO error has occurred");
We should spell it "I/O", unless we're reporting trouble with Jupiter's
moon.
> goto exit;
> }
> ret = blk_co_pwrite(blk, sizeof(magic), sizeof(header), &header, 0);
> if (ret < 0) {
> - error_setg(errp, QERR_IO_ERROR);
> + error_setg(errp, "An IO error has occurred");
> goto exit;
> }
>
[...]
