Re: [PATCH 2/5] hw/nvram/xlnx-bbram: More idiomatic and simpler error reporting

[Vladimir Sementsov-Ogievskiy <vsementsov@xxxxxxxxxxxxxx>]

On 19.11.25 16:08, Markus Armbruster wrote:
> bbram_bdrv_error() interpolates a "detail" string into a template with
> error_setg_errno(), then reports the result with error_report().
> Produces error messages with an unwanted '.':
>
>      BLK-NAME: BBRAM backstore DETAIL failed.: STERROR
>
> Replace both calls of bbram_bdrv_error() by straightforward
> error_report(), and drop the function.  This is less code, easier to
> read, and the error message is more greppable.
>
> Also delete the unwanted '.'.
Also, using "errp" name for local "Error *" (one star) variable is a bit 
misleading.

> Signed-off-by: Markus Armbruster <armbru@xxxxxxxxxx>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@xxxxxxxxxxxxxx>

> ---
>   hw/nvram/xlnx-bbram.c | 18 ++++--------------
>   1 file changed, 4 insertions(+), 14 deletions(-)
>
> diff --git a/hw/nvram/xlnx-bbram.c b/hw/nvram/xlnx-bbram.c
> index 22aefbc240..fe289bad9d 100644
> --- a/hw/nvram/xlnx-bbram.c
> +++ b/hw/nvram/xlnx-bbram.c
> @@ -88,18 +88,6 @@ static bool bbram_pgm_enabled(XlnxBBRam *s)
>       return ARRAY_FIELD_EX32(s->regs, BBRAM_STATUS, PGM_MODE) != 0;
>   }
>   
> -static void bbram_bdrv_error(XlnxBBRam *s, int rc, gchar *detail)
> -{
> -    Error *errp = NULL;
> -
> -    error_setg_errno(&errp, -rc, "%s: BBRAM backstore %s failed.",
> -                     blk_name(s->blk), detail);
> -    error_report("%s", error_get_pretty(errp));
> -    error_free(errp);
> -
> -    g_free(detail);
> -}
> -
>   static void bbram_bdrv_read(XlnxBBRam *s, Error **errp)
>   {
>       uint32_t *ram = &s->regs[R_BBRAM_0];
> @@ -162,7 +150,8 @@ static void bbram_bdrv_sync(XlnxBBRam *s, uint64_t hwaddr)
>       offset = hwaddr - A_BBRAM_0;
>       rc = blk_pwrite(s->blk, offset, 4, &le32, 0);
>       if (rc < 0) {
> -        bbram_bdrv_error(s, rc, g_strdup_printf("write to offset %u", offset));
> +        error_report("%s: BBRAM backstore write to offset %u failed: %s",
> +                     blk_name(s->blk), offset, strerror(-rc));
>       }
>   }
>   
> @@ -178,7 +167,8 @@ static void bbram_bdrv_zero(XlnxBBRam *s)
>   
>       rc = blk_make_zero(s->blk, 0);
>       if (rc < 0) {
> -        bbram_bdrv_error(s, rc, g_strdup("zeroizing"));
> +        error_report("%s: BBRAM backstore zeroizing failed: %s",
> +                     blk_name(s->blk), strerror(-rc));
>       }
>   
>       /* Restore bbram8 if it is non-zero */

--
Best regards,
Vladimir