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References: <20240507-cocci-flexarray-v1-0-4a421c21fd06@chromium.org> <20240507-cocci-flexarray-v1-6-4a421c21fd06@chromium.org>
In-Reply-To: <20240507-cocci-flexarray-v1-6-4a421c21fd06@chromium.org>
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Tue, 7 May 2024 16:31:43 +0200
Message-ID: <CANiDSCv==iq+pj18m891AqTYaq1M+QjyE0R=4NQKUK8BmSi7Qw@mail.gmail.com>
Subject: Re: [PATCH 06/18] media: siano: Refactor struct sms_msg_data
To: Michael Tretter <m.tretter@pengutronix.de>, 
	Pengutronix Kernel Team <kernel@pengutronix.de>, Mauro Carvalho Chehab <mchehab@kernel.org>, 
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Michal Simek <michal.simek@amd.com>, 
	Andy Walls <awalls@md.metrocast.net>, Stanimir Varbanov <stanimir.k.varbanov@gmail.com>, 
	Vikash Garodia <quic_vgarodia@quicinc.com>, "Bryan O'Donoghue" <bryan.odonoghue@linaro.org>, 
	Bjorn Andersson <andersson@kernel.org>, Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, 
	linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, 
	Hans Verkuil <hverkuil-cisco@xs4all.nl>
Content-Type: text/plain; charset="UTF-8"

Hi,

The CI has found a build error in ppc for this patch.

https://gitlab.freedesktop.org/linux-media/media-staging/-/pipelines/1171798/test_report?job_name=build

Will send a v2 shortly

On Tue, 7 May 2024 at 15:18, Ricardo Ribalda <ribalda@chromium.org> wrote:
>
> Replace a single element array with a single element field.
>
> This fixes the following cocci warning:
> drivers/media/common/siano/smscoreapi.h:619:5-13: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
>
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
>  drivers/media/common/siano/smscoreapi.c  | 10 +++++-----
>  drivers/media/common/siano/smscoreapi.h  |  2 +-
>  drivers/media/common/siano/smsdvb-main.c |  4 ++--
>  3 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c
> index 7ebcb10126c9..b6f1eb5dbbdf 100644
> --- a/drivers/media/common/siano/smscoreapi.c
> +++ b/drivers/media/common/siano/smscoreapi.c
> @@ -839,7 +839,7 @@ static int smscore_configure_board(struct smscore_device_t *coredev)
>                 mtu_msg.x_msg_header.msg_flags = 0;
>                 mtu_msg.x_msg_header.msg_type = MSG_SMS_SET_MAX_TX_MSG_LEN_REQ;
>                 mtu_msg.x_msg_header.msg_length = sizeof(mtu_msg);
> -               mtu_msg.msg_data[0] = board->mtu;
> +               mtu_msg.msg_data = board->mtu;
>
>                 coredev->sendrequest_handler(coredev->context, &mtu_msg,
>                                              sizeof(mtu_msg));
> @@ -852,7 +852,7 @@ static int smscore_configure_board(struct smscore_device_t *coredev)
>                 SMS_INIT_MSG(&crys_msg.x_msg_header,
>                                 MSG_SMS_NEW_CRYSTAL_REQ,
>                                 sizeof(crys_msg));
> -               crys_msg.msg_data[0] = board->crystal;
> +               crys_msg.msg_data = board->crystal;
>
>                 coredev->sendrequest_handler(coredev->context, &crys_msg,
>                                              sizeof(crys_msg));
> @@ -1306,7 +1306,7 @@ static int smscore_init_device(struct smscore_device_t *coredev, int mode)
>         msg = (struct sms_msg_data *)SMS_ALIGN_ADDRESS(buffer);
>         SMS_INIT_MSG(&msg->x_msg_header, MSG_SMS_INIT_DEVICE_REQ,
>                         sizeof(struct sms_msg_data));
> -       msg->msg_data[0] = mode;
> +       msg->msg_data = mode;
>
>         rc = smscore_sendrequest_and_wait(coredev, msg,
>                         msg->x_msg_header. msg_length,
> @@ -1394,7 +1394,7 @@ int smscore_set_device_mode(struct smscore_device_t *coredev, int mode)
>
>                         SMS_INIT_MSG(&msg->x_msg_header, MSG_SMS_INIT_DEVICE_REQ,
>                                      sizeof(struct sms_msg_data));
> -                       msg->msg_data[0] = mode;
> +                       msg->msg_data = mode;
>
>                         rc = smscore_sendrequest_and_wait(
>                                 coredev, msg, msg->x_msg_header.msg_length,
> @@ -1554,7 +1554,7 @@ void smscore_onresponse(struct smscore_device_t *coredev,
>                         struct sms_msg_data *validity = (struct sms_msg_data *) phdr;
>
>                         pr_debug("MSG_SMS_DATA_VALIDITY_RES, checksum = 0x%x\n",
> -                               validity->msg_data[0]);
> +                               validity->msg_data);
>                         complete(&coredev->data_validity_done);
>                         break;
>                 }
> diff --git a/drivers/media/common/siano/smscoreapi.h b/drivers/media/common/siano/smscoreapi.h
> index f8789ee0d554..46dc74ac9318 100644
> --- a/drivers/media/common/siano/smscoreapi.h
> +++ b/drivers/media/common/siano/smscoreapi.h
> @@ -616,7 +616,7 @@ struct sms_msg_hdr {
>
>  struct sms_msg_data {
>         struct sms_msg_hdr x_msg_header;
> -       u32 msg_data[1];
> +       u32 msg_data;
>  };
>
>  struct sms_msg_data2 {
> diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c
> index d893a0e4672b..44d8fe8b220e 100644
> --- a/drivers/media/common/siano/smsdvb-main.c
> +++ b/drivers/media/common/siano/smsdvb-main.c
> @@ -689,7 +689,7 @@ static int smsdvb_start_feed(struct dvb_demux_feed *feed)
>         pid_msg.x_msg_header.msg_flags = 0;
>         pid_msg.x_msg_header.msg_type  = MSG_SMS_ADD_PID_FILTER_REQ;
>         pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
> -       pid_msg.msg_data[0] = feed->pid;
> +       pid_msg.msg_data = feed->pid;
>
>         return smsclient_sendrequest(client->smsclient,
>                                      &pid_msg, sizeof(pid_msg));
> @@ -711,7 +711,7 @@ static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
>         pid_msg.x_msg_header.msg_flags = 0;
>         pid_msg.x_msg_header.msg_type  = MSG_SMS_REMOVE_PID_FILTER_REQ;
>         pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
> -       pid_msg.msg_data[0] = feed->pid;
> +       pid_msg.msg_data = feed->pid;
>
>         return smsclient_sendrequest(client->smsclient,
>                                      &pid_msg, sizeof(pid_msg));
>
> --
> 2.45.0.rc1.225.g2a3ae87e7f-goog
>


-- 
Ricardo Ribalda