(adding Andrew Morton to cc's)
On Mon, 2013-12-16 at 12:06 -0500, Neil Horman wrote:
> sctp has several points in its setsockopt path in which it issues deprecation
> warnings. It seems like it might be handy to macrotize such a warning so
> other
> subsystems can use it easily
[]
> diff --git a/include/linux/printk.h b/include/linux/printk.h
[]
> @@ -336,6 +336,9 @@ extern asmlinkage void dump_stack(void) __cold;
> printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
> /* no pr_cont_ratelimited, don't do that... */
>
> +#define pr_warn_deprecated(fmt, ...) \
> + pr_warn_ratelimited("Deprecated: " fmt, ##__VA_ARGS__)
Continuing the thread from:
http://patchwork.ozlabs.org/patch/301738/
Making this a global kernel #define is different than
using it in your subsystem.
I think this is very analogous to the FW_INFO/FW_WARN
uses and maybe should just have a #define for the
string "deprecated:" inserted as a constant.
ie: just using
pr_warn_once(DEPRECATED fmt, args...)
or
pr_warn_ratelimited(DEPRECATED fmt, args...)
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