[dpdk-dev] [PATCH v5 1/5] devargs: unify scratch buffer storage

David Marchand david.marchand at redhat.com
Fri Apr 16 09:00:13 CEST 2021


On Tue, Apr 13, 2021 at 5:15 AM Xueming Li <xuemingl at nvidia.com> wrote:
> diff --git a/lib/librte_eal/include/rte_devargs.h b/lib/librte_eal/include/rte_devargs.h
> index 296f19324f..134b44a887 100644
> --- a/lib/librte_eal/include/rte_devargs.h
> +++ b/lib/librte_eal/include/rte_devargs.h
> @@ -60,16 +60,16 @@ struct rte_devargs {
>         /** Name of the device. */
>         char name[RTE_DEV_NAME_MAX_LEN];
>         RTE_STD_C11
> -       union {
> -       /** Arguments string as given by user or "" for no argument. */
> -               char *args;
> +       union { /**< driver-related part of device string. */
> +               const char *args; /**< legacy name. */
>                 const char *drv_str;
>         };
>         struct rte_bus *bus; /**< bus handle. */
>         struct rte_class *cls; /**< class handle. */
>         const char *bus_str; /**< bus-related part of device string. */
>         const char *cls_str; /**< class-related part of device string. */
> -       const char *data; /**< Device string storage. */
> +       char *data;
> +       /**< Raw string including bus, class and driver arguments. */
>  };
>
>  /**

- Flagging this patch for info and its impact on UNH jobs.

This change is fine, but older libabigail versions could not deal with
such changes (anonymous union, changes of const fields).
This results in an ABI check failure in the UNH x86 job on Ubuntu
18.04 (and for some people not using recent libabigail).
I can see the ARM job passes fine, so I suppose it is using a more
recent libabigail (running Ubuntu 20.04 maybe?).

We either need to disable this x86 job or update its libabigail
package (maybe aligning with what we have for public CI which is
libabigail 1.8 manually compiled).


- For the longer term, what do you think of using/extending the .ci/
scripts for use by UNH jobs?


-- 
David Marchand



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