Re: [PATCH] remoteproc: use SIZE_MAX in rproc_u64_fit_in_size_t()

[Mathieu Poirier <mathieu.poirier@linaro.org>]

On Sat, Mar 14, 2026 at 11:01:37AM +0000, Anas Iqbal wrote:
> Smatch reports:
> 
> drivers/remoteproc/remoteproc_elf_loader.c:221
> warn: always true condition '(val <= -1)'
> 
> The helper function rproc_u64_fit_in_size_t() compares the value
> against (size_t)-1, which is equivalent to SIZE_MAX but can confuse
> static analysis tools and lead to the above warning.
> 
> Replace (size_t)-1 with SIZE_MAX to make the intent explicit and
> avoid the Smatch warning without changing the behavior.
> 
> Signed-off-by: Anas Iqbal <mohd.abd.6602@gmail.com>
> ---
>  drivers/remoteproc/remoteproc_internal.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
> index 0cd09e67ac14..0a5e15744b1d 100644
> --- a/drivers/remoteproc/remoteproc_internal.h
> +++ b/drivers/remoteproc/remoteproc_internal.h
> @@ -218,7 +218,7 @@ bool rproc_u64_fit_in_size_t(u64 val)
>  	if (sizeof(size_t) == sizeof(u64))
>  		return true;
>  
> -	return (val <= (size_t) -1);
> +	return val <= SIZE_MAX;

Applied.

Thanks,
Mathieu

>  }
>  
>  #endif /* REMOTEPROC_INTERNAL_H */
> -- 
> 2.43.0
>