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Date: Wed, 6 Jul 2016 10:41:02 +0800
From: Fam Zheng <famz@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v3 01/32] blockdev: prepare iSCSI block
 driver for dynamic loading
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To: Colin Lord <clord@redhat.com>
Cc: qemu-devel@nongnu.org, kwolf@redhat.com, qemu-block@nongnu.org, mreitz@redhat.com

On Tue, 07/05 11:24, Colin Lord wrote:
> This commit moves the initialization of the QemuOptsList qemu_iscsi_opts
> struct out of block/iscsi.c in order to allow the iscsi module to be
> dynamically loaded.
> 
> Signed-off-by: Colin Lord <clord@redhat.com>
> ---
>  block/iscsi.c | 36 ------------------------------------
>  vl.c          | 38 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 38 insertions(+), 36 deletions(-)
> 
> diff --git a/block/iscsi.c b/block/iscsi.c
> index 9bb5ff6..8246075 100644
> --- a/block/iscsi.c
> +++ b/block/iscsi.c
> @@ -1880,45 +1880,9 @@ static BlockDriver bdrv_iscsi = {
>      .bdrv_attach_aio_context = iscsi_attach_aio_context,
>  };
>  
> -static QemuOptsList qemu_iscsi_opts = {
> -    .name = "iscsi",
> -    .head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head),
> -    .desc = {
> -        {
> -            .name = "user",
> -            .type = QEMU_OPT_STRING,
> -            .help = "username for CHAP authentication to target",
> -        },{
> -            .name = "password",
> -            .type = QEMU_OPT_STRING,
> -            .help = "password for CHAP authentication to target",
> -        },{
> -            .name = "password-secret",
> -            .type = QEMU_OPT_STRING,
> -            .help = "ID of the secret providing password for CHAP "
> -                    "authentication to target",
> -        },{
> -            .name = "header-digest",
> -            .type = QEMU_OPT_STRING,
> -            .help = "HeaderDigest setting. "
> -                    "{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}",
> -        },{
> -            .name = "initiator-name",
> -            .type = QEMU_OPT_STRING,
> -            .help = "Initiator iqn name to use when connecting",
> -        },{
> -            .name = "timeout",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "Request timeout in seconds (default 0 = no timeout)",
> -        },
> -        { /* end of list */ }
> -    },
> -};
> -
>  static void iscsi_block_init(void)
>  {
>      bdrv_register(&bdrv_iscsi);
> -    qemu_add_opts(&qemu_iscsi_opts);
>  }
>  
>  block_init(iscsi_block_init);
> diff --git a/vl.c b/vl.c
> index 9bb7f4c..cb640c2 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -506,6 +506,41 @@ static QemuOptsList qemu_fw_cfg_opts = {
>      },
>  };
>  
> +static QemuOptsList qemu_iscsi_opts = {
> +    .name = "iscsi",
> +    .head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head),
> +    .desc = {
> +        {
> +            .name = "user",
> +            .type = QEMU_OPT_STRING,
> +            .help = "username for CHAP authentication to target",
> +        },{
> +            .name = "password",
> +            .type = QEMU_OPT_STRING,
> +            .help = "password for CHAP authentication to target",
> +        },{
> +            .name = "password-secret",
> +            .type = QEMU_OPT_STRING,
> +            .help = "ID of the secret providing password for CHAP "
> +                    "authentication to target",
> +        },{
> +            .name = "header-digest",
> +            .type = QEMU_OPT_STRING,
> +            .help = "HeaderDigest setting. "
> +                    "{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}",
> +        },{
> +            .name = "initiator-name",
> +            .type = QEMU_OPT_STRING,
> +            .help = "Initiator iqn name to use when connecting",
> +        },{
> +            .name = "timeout",
> +            .type = QEMU_OPT_NUMBER,
> +            .help = "Request timeout in seconds (default 0 = no timeout)",
> +        },
> +        { /* end of list */ }
> +    },
> +};
> +
>  /**
>   * Get machine options
>   *
> @@ -2982,6 +3017,9 @@ int main(int argc, char **argv, char **envp)
>      qemu_add_opts(&qemu_icount_opts);
>      qemu_add_opts(&qemu_semihosting_config_opts);
>      qemu_add_opts(&qemu_fw_cfg_opts);
> +#ifdef CONFIG_LIBISCSI
> +    qemu_add_opts(&qemu_iscsi_opts);
> +#endif
>      module_call_init(MODULE_INIT_OPTS);
>  
>      runstate_init();
> -- 
> 2.5.5
> 
> 

Reviewed-by: Fam Zheng <famz@redhat.com>