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Date:   Fri, 19 Nov 2021 07:38:42 +0200
From:   Amir Goldstein <amir73il@...il.com>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>,
        Petr Vorel <pvorel@...e.cz>,
        Matthew Bobrowski <repnop@...gle.com>
Cc:     Jan Kara <jack@...e.com>, Ext4 <linux-ext4@...r.kernel.org>,
        kernel@...labora.com, Khazhismel Kumykov <khazhy@...gle.com>,
        LTP List <ltp@...ts.linux.it>
Subject: Re: [PATCH v4 4/9] syscalls/fanotify22: Validate the generic error info

On Fri, Nov 19, 2021 at 1:58 AM Gabriel Krisman Bertazi
<krisman@...labora.com> wrote:
>
> Implement some validation for the generic error info record emitted by
> the kernel.  The error number is fs-specific but, well, we only support
> ext4 for now anyway.
>
> Reviewed-by: Amir Goldstein <amir73il@...il.com>
> Signed-off-by: Gabriel Krisman Bertazi <krisman@...labora.com>
>
> ---
> Changes since v2:
>   - check for error record type in autotools (Amir)
> Changes since v1:
>   - Move defines to header file.
> ---
>  configure.ac                                  |  3 +-
>  testcases/kernel/syscalls/fanotify/fanotify.h | 32 ++++++++++++++++
>  .../kernel/syscalls/fanotify/fanotify22.c     | 37 ++++++++++++++++++-
>  3 files changed, 70 insertions(+), 2 deletions(-)
>
> diff --git a/configure.ac b/configure.ac
> index 859aa9857021..a9dc2524966d 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -160,7 +160,8 @@ AC_CHECK_MEMBERS([struct utsname.domainname],,,[
>  AC_CHECK_TYPES([enum kcmp_type],,,[#include <linux/kcmp.h>])
>  AC_CHECK_TYPES([struct acct_v3],,,[#include <sys/acct.h>])
>  AC_CHECK_TYPES([struct af_alg_iv, struct sockaddr_alg],,,[# include <linux/if_alg.h>])
> -AC_CHECK_TYPES([struct fanotify_event_info_fid, struct fanotify_event_info_header],,,[#include <sys/fanotify.h>])
> +AC_CHECK_TYPES([struct fanotify_event_info_fid, struct fanotify_event_info_header,
> +               struct fanotify_event_info_error],[],[],[#include <sys/fanotify.h>])

Doh! it seems like fanotify_event_info_pidfd was dropped between v2 ->
v3 in Matthew's patches.

Petr,

Can you please fix this.

Thanks,
Amir.

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