On Sun, Dec 22, 2024 at 01:43:31PM +0800, Guo Weikang wrote:
> Before SLUB initialization, various subsystems used memblock_alloc to
> allocate memory. In most cases, when memory allocation fails, an immediate
> panic is required. To simplify this behavior and reduce repetitive checks,
> introduce `memblock_alloc_or_panic`. This function ensures that memory
> allocation failures result in a panic automatically, improving code
> readability and consistency across subsystems that require this behavior.
>
> Signed-off-by: Guo Weikang <guoweikang.kernel@xxxxxxxxx>
> ---
...
> diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> index 673d5cae7c81..73af7ca3fa1c 100644
> --- a/include/linux/memblock.h
> +++ b/include/linux/memblock.h
> @@ -417,6 +417,12 @@ static __always_inline void *memblock_alloc(phys_addr_t size, phys_addr_t align)
> MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
> }
>
> +void *__memblock_alloc_or_panic(phys_addr_t size, phys_addr_t align,
> + const char *func);
Please align this line with the first parameter to the function.
Other than that
Acked-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
> +
> +#define memblock_alloc_or_panic(size, align) \
> + __memblock_alloc_or_panic(size, align, __func__)
> +
> static inline void *memblock_alloc_raw(phys_addr_t size,
> phys_addr_t align)
> {
--
Sincerely yours,
Mike.
