Re: [PATCH v2 05/15] sched/debug: Use unsigned long for cpu variable to prevent cast errors

[Chris Hyser <chris.hyser@oracle.com>]

On 3/12/24 21:24, Joel Fernandes (Google) wrote:
> This avoids compiler errors seen with clang:
>
> In file included from kernel/sched/build_utility.c:72:
> kernel/sched/debug.c:532:47: error: cast to 'void *' from smaller integer
> 	type 'unsigned int' [-Werror,-Wint-to-void-pointer-cast]
> debugfs_create_file("runtime", 0644, d_cpu, (void *) cpu, &fair_server_runtime_fops);
>
> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>


Reviewed-by: Chris Hyser <chris.hyser@oracle.com>


> ---
>   kernel/sched/debug.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
> index c6c0120ff105..2590041696bc 100644
> --- a/kernel/sched/debug.c
> +++ b/kernel/sched/debug.c
> @@ -516,7 +516,7 @@ static struct dentry *debugfs_sched;
>   static void debugfs_fair_server_init(void)
>   {
>   	struct dentry *d_fair;
> -	unsigned int cpu;
> +	unsigned long cpu;
>   
>   	d_fair = debugfs_create_dir("fair_server", debugfs_sched);
>   	if (!d_fair)
> @@ -526,7 +526,7 @@ static void debugfs_fair_server_init(void)
>   		struct dentry *d_cpu;
>   		char buf[32];
>   
> -		snprintf(buf, sizeof(buf), "cpu%d", cpu);
> +		snprintf(buf, sizeof(buf), "cpu%lu", cpu);
>   		d_cpu = debugfs_create_dir(buf, d_fair);
>   
>   		debugfs_create_file("runtime", 0644, d_cpu, (void *) cpu, &fair_server_runtime_fops);