From: Anthony PERARD <anthony.perard@citrix.com>
To: Julien Grall <julien@xen.org>
Cc: <xen-devel@lists.xenproject.org>,
Julien Grall <jgrall@amazon.com>,
Ian Jackson <iwj@xenproject.org>, Wei Liu <wl@xen.org>
Subject: Re: [PATCH 07/14] tools/xl: Use const whenever we point to literal strings
Date: Tue, 27 Apr 2021 17:04:11 +0100 [thread overview]
Message-ID: <YIg1+x/cR1Ft5H3u@perard> (raw)
In-Reply-To: <20210405155713.29754-8-julien@xen.org>
On Mon, Apr 05, 2021 at 04:57:06PM +0100, Julien Grall wrote:
> From: Julien Grall <jgrall@amazon.com>
>
> literal strings are not meant to be modified. So we should use const
> char * rather than char * when we want to store a pointer to them.
>
> Signed-off-by: Julien Grall <jgrall@amazon.com>
> ---
> diff --git a/tools/xl/xl.h b/tools/xl/xl.h
> index 137a29077c1e..3052e3db0072 100644
> --- a/tools/xl/xl.h
> +++ b/tools/xl/xl.h
> @@ -21,13 +21,13 @@
> #include <xentoollog.h>
>
> struct cmd_spec {
> - char *cmd_name;
> + const char *cmd_name;
> int (*cmd_impl)(int argc, char **argv);
> int can_dryrun;
> int modifies;
> - char *cmd_desc;
> - char *cmd_usage;
> - char *cmd_option;
> + const char *cmd_desc;
> + const char *cmd_usage;
> + const char *cmd_option;
> };
Those const in cmd_spec feels almost the wrong things to do, but it is
also unlikely that we would want to modify the strings in a cmd_spec so
I guess that's fine.
I'm thinking that `cmd_table` should be const as well (I mean
const struct cmd_spec cmd_table[];) as there is no reason to modify the
entries once they are in the table. I'll send a patch.
The rest looks good.
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Thanks,
--
Anthony PERARD
next prev parent reply other threads:[~2021-04-27 16:04 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-05 15:56 [PATCH 00/14] Use const whether we point to literal strings (take 1) Julien Grall
2021-04-05 15:57 ` [PATCH 01/14] xen: Constify the second parameter of rangeset_new() Julien Grall
2021-04-06 7:57 ` Jan Beulich
2021-04-06 18:03 ` Julien Grall
2021-04-05 15:57 ` [PATCH 02/14] xen/sched: Constify name and opt_name in struct scheduler Julien Grall
2021-04-06 8:07 ` Jan Beulich
2021-04-06 18:24 ` Julien Grall
2021-04-07 8:22 ` Jan Beulich
2021-04-07 9:06 ` Julien Grall
2021-04-06 14:19 ` George Dunlap
2021-04-05 15:57 ` [PATCH 03/14] xen/x86: shadow: The return type of sh_audit_flags() should be const Julien Grall
2021-04-06 7:24 ` Roger Pau Monné
2021-04-06 18:26 ` Julien Grall
2021-04-06 14:00 ` Tim Deegan
2021-04-05 15:57 ` [PATCH 04/14] xen/char: console: Use const whenever we point to literal strings Julien Grall
2021-04-06 8:10 ` Jan Beulich
2021-04-06 18:27 ` Julien Grall
2021-04-05 15:57 ` [PATCH 05/14] tools/libs: guest: " Julien Grall
2021-05-11 14:58 ` Anthony PERARD
2021-05-18 13:33 ` Julien Grall
2021-04-05 15:57 ` [PATCH 06/14] tools/libs: stat: " Julien Grall
2021-05-11 15:03 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 07/14] tools/xl: " Julien Grall
2021-04-27 16:04 ` Anthony PERARD [this message]
2021-04-27 16:28 ` Julien Grall
2021-04-27 17:03 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 08/14] tools/firmware: hvmloader: Use const in __bug() and __assert_failed() Julien Grall
2021-04-06 7:29 ` Roger Pau Monné
2021-04-06 19:02 ` Julien Grall
2021-04-05 15:57 ` [PATCH 09/14] tools/console: Use const whenever we point to literal strings Julien Grall
2021-05-11 15:18 ` Anthony PERARD
2021-05-18 13:48 ` Julien Grall
2021-04-05 15:57 ` [PATCH 10/14] tools/kdd: " Julien Grall
2021-04-06 14:03 ` Tim Deegan
2021-04-05 15:57 ` [PATCH 11/14] tools/misc: " Julien Grall
2021-05-11 15:37 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 12/14] tools/top: The string parameter in set_prompt() and set_delay() should be const Julien Grall
2021-05-11 15:46 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 13/14] tools/xenmon: xenbaked: Mark const the field text in stat_map_t Julien Grall
2021-05-11 16:08 ` Anthony PERARD
2021-04-05 15:57 ` [PATCH 14/14] tools/xentrace: Use const whenever we point to literal strings Julien Grall
2021-04-06 14:15 ` George Dunlap
2021-04-05 17:01 ` [PATCH 00/14] Use const whether we point to literal strings (take 1) Elliott Mitchell
2021-04-06 17:55 ` Julien Grall
2021-04-06 7:50 ` Jan Beulich
2021-04-06 19:08 ` Julien Grall
2021-05-10 17:49 ` PING " Julien Grall
2021-05-17 18:41 ` Wei Liu
2021-05-18 14:02 ` Julien Grall
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