Re: [PATCH v3 03/16] net/net: Clean up global variable shadowing

[Thomas Huth <thuth@redhat.com>]

On 04/10/2023 14.00, Philippe Mathieu-Daudé wrote:
> Fix:
> 
>    net/net.c:1680:35: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
>    bool netdev_is_modern(const char *optarg)
>                                      ^
>    net/net.c:1714:38: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
>    void netdev_parse_modern(const char *optarg)
>                                         ^
>    net/net.c:1728:60: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
>    void net_client_parse(QemuOptsList *opts_list, const char *optarg)
>                                                               ^
>    /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/getopt.h:77:14: note: previous declaration is here
>    extern char *optarg;                    /* getopt(3) external variables */
>                 ^
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   include/net/net.h |  6 +++---
>   net/net.c         | 14 +++++++-------
>   2 files changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/include/net/net.h b/include/net/net.h
> index 330d285930..2fb1c9181c 100644
> --- a/include/net/net.h
> +++ b/include/net/net.h
> @@ -247,9 +247,9 @@ extern const char *host_net_devices[];
>   
>   /* from net.c */
>   extern NetClientStateList net_clients;
> -bool netdev_is_modern(const char *optarg);
> -void netdev_parse_modern(const char *optarg);
> -void net_client_parse(QemuOptsList *opts_list, const char *str);
> +bool netdev_is_modern(const char *optstr);
> +void netdev_parse_modern(const char *optstr);
> +void net_client_parse(QemuOptsList *opts_list, const char *optstr);
>   void show_netdevs(void);
>   void net_init_clients(void);
>   void net_check_clients(void);
> diff --git a/net/net.c b/net/net.c
> index 1c0bfdaa6c..c0c0cbe99e 100644
> --- a/net/net.c
> +++ b/net/net.c
> @@ -1677,7 +1677,7 @@ void net_init_clients(void)
>    * Modern syntax is to be parsed with netdev_parse_modern().
>    * Traditional syntax is to be parsed with net_client_parse().
>    */
> -bool netdev_is_modern(const char *optarg)
> +bool netdev_is_modern(const char *optstr)
>   {
>       QemuOpts *opts;
>       bool is_modern;
> @@ -1689,13 +1689,13 @@ bool netdev_is_modern(const char *optarg)
>           .desc = { { } },
>       };
>   
> -    if (optarg[0] == '{') {
> +    if (optstr[0] == '{') {
>           /* This is JSON, which means it's modern syntax */
>           return true;
>       }
>   
>       opts = qemu_opts_create(&dummy_opts, NULL, false, &error_abort);
> -    qemu_opts_do_parse(opts, optarg, dummy_opts.implied_opt_name,
> +    qemu_opts_do_parse(opts, optstr, dummy_opts.implied_opt_name,
>                          &error_abort);
>       type = qemu_opt_get(opts, "type");
>       is_modern = !g_strcmp0(type, "stream") || !g_strcmp0(type, "dgram");
> @@ -1711,12 +1711,12 @@ bool netdev_is_modern(const char *optarg)
>    * netdev_parse_modern() appends to @nd_queue, whereas net_client_parse()
>    * appends to @qemu_netdev_opts.
>    */
> -void netdev_parse_modern(const char *optarg)
> +void netdev_parse_modern(const char *optstr)
>   {
>       Visitor *v;
>       NetdevQueueEntry *nd;
>   
> -    v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
> +    v = qobject_input_visitor_new_str(optstr, "type", &error_fatal);
>       nd = g_new(NetdevQueueEntry, 1);
>       visit_type_Netdev(v, NULL, &nd->nd, &error_fatal);
>       visit_free(v);
> @@ -1725,9 +1725,9 @@ void netdev_parse_modern(const char *optarg)
>       QSIMPLEQ_INSERT_TAIL(&nd_queue, nd, entry);
>   }
>   
> -void net_client_parse(QemuOptsList *opts_list, const char *optarg)
> +void net_client_parse(QemuOptsList *opts_list, const char *optstr)
>   {
> -    if (!qemu_opts_parse_noisily(opts_list, optarg, true)) {
> +    if (!qemu_opts_parse_noisily(opts_list, optstr, true)) {
>           exit(1);
>       }
>   }

Reviewed-by: Thomas Huth <thuth@redhat.com>