On Thu, 04 Feb 2016 06:56:24 +0100,
Joonsoo Kim wrote:
>
> We can disable debug_pagealloc processing even if the code is complied
> with CONFIG_DEBUG_PAGEALLOC. This patch changes the code to query
> whether it is enabled or not in runtime.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Acked-by: Takashi Iwai <tiwai@xxxxxxx>
Takashi
> ---
> sound/drivers/pcsp/pcsp.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
> index 27e25bb..72e2d00 100644
> --- a/sound/drivers/pcsp/pcsp.c
> +++ b/sound/drivers/pcsp/pcsp.c
> @@ -14,6 +14,7 @@
> #include <linux/input.h>
> #include <linux/delay.h>
> #include <linux/bitops.h>
> +#include <linux/mm.h>
> #include "pcsp_input.h"
> #include "pcsp.h"
>
> @@ -148,11 +149,11 @@ static int alsa_card_pcsp_init(struct device *dev)
> return err;
> }
>
> -#ifdef CONFIG_DEBUG_PAGEALLOC
> /* Well, CONFIG_DEBUG_PAGEALLOC makes the sound horrible. Lets alert */
> - printk(KERN_WARNING "PCSP: CONFIG_DEBUG_PAGEALLOC is enabled, "
> - "which may make the sound noisy.\n");
> -#endif
> + if (debug_pagealloc_enabled()) {
> + printk(KERN_WARNING "PCSP: CONFIG_DEBUG_PAGEALLOC is enabled, "
> + "which may make the sound noisy.\n");
> + }
>
> return 0;
> }
> --
> 1.9.1
>
>
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