Dan Streetman <ddstreet@xxxxxxxx> writes:
> Change the param_free_charp() function from static to exported.
>
> It is used by zswap in the next patch.
>
> Signed-off-by: Dan Streetman <ddstreet@xxxxxxxx>
Acked-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Thanks!
Rusty.
> ---
> include/linux/moduleparam.h | 1 +
> kernel/params.c | 3 ++-
> 2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
> index c12f214..52666d9 100644
> --- a/include/linux/moduleparam.h
> +++ b/include/linux/moduleparam.h
> @@ -386,6 +386,7 @@ extern int param_get_ullong(char *buffer, const struct kernel_param *kp);
> extern const struct kernel_param_ops param_ops_charp;
> extern int param_set_charp(const char *val, const struct kernel_param *kp);
> extern int param_get_charp(char *buffer, const struct kernel_param *kp);
> +extern void param_free_charp(void *arg);
> #define param_check_charp(name, p) __param_check(name, p, char *)
>
> /* We used to allow int as well as bool. We're taking that away! */
> diff --git a/kernel/params.c b/kernel/params.c
> index b6554aa..93a380a 100644
> --- a/kernel/params.c
> +++ b/kernel/params.c
> @@ -325,10 +325,11 @@ int param_get_charp(char *buffer, const struct kernel_param *kp)
> }
> EXPORT_SYMBOL(param_get_charp);
>
> -static void param_free_charp(void *arg)
> +void param_free_charp(void *arg)
> {
> maybe_kfree_parameter(*((char **)arg));
> }
> +EXPORT_SYMBOL(param_free_charp);
>
> const struct kernel_param_ops param_ops_charp = {
> .set = param_set_charp,
> --
> 2.1.0
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