Re: [PATCH v3 02/10] riscv: add __init section marker to some functions

[Anup Patel]

On Mon, Apr 12, 2021 at 9:47 PM Jisheng Zhang <jszhang3@xxxxxxxxxxxxxxxx> wrote:
>
> From: Jisheng Zhang <jszhang@xxxxxxxxxx>
>
> They are not needed after booting, so mark them as __init to move them
> to the __init section.
>
> Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>

Looks good to me.

Reviewed-by: Anup Patel <anup@xxxxxxxxxxxxxx>

Regards,
Anup

> ---
>  arch/riscv/kernel/cpufeature.c | 2 +-
>  arch/riscv/kernel/traps.c      | 2 +-
>  arch/riscv/mm/init.c           | 4 ++--
>  arch/riscv/mm/kasan_init.c     | 6 +++---
>  arch/riscv/mm/ptdump.c         | 2 +-
>  5 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
> index ac202f44a670..e4741e1f0add 100644
> --- a/arch/riscv/kernel/cpufeature.c
> +++ b/arch/riscv/kernel/cpufeature.c
> @@ -59,7 +59,7 @@ bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, int bit)
>  }
>  EXPORT_SYMBOL_GPL(__riscv_isa_extension_available);
>
> -void riscv_fill_hwcap(void)
> +void __init riscv_fill_hwcap(void)
>  {
>         struct device_node *node;
>         const char *isa;
> diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
> index 0879b5df11b9..041f4b44262e 100644
> --- a/arch/riscv/kernel/traps.c
> +++ b/arch/riscv/kernel/traps.c
> @@ -196,6 +196,6 @@ int is_valid_bugaddr(unsigned long pc)
>  #endif /* CONFIG_GENERIC_BUG */
>
>  /* stvec & scratch is already set from head.S */
> -void trap_init(void)
> +void __init trap_init(void)
>  {
>  }
> diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
> index dbeaa4144e4d..ecd485662b07 100644
> --- a/arch/riscv/mm/init.c
> +++ b/arch/riscv/mm/init.c
> @@ -70,7 +70,7 @@ static inline void print_mlm(char *name, unsigned long b, unsigned long t)
>                   (((t) - (b)) >> 20));
>  }
>
> -static void print_vm_layout(void)
> +static void __init print_vm_layout(void)
>  {
>         pr_notice("Virtual kernel memory layout:\n");
>         print_mlk("fixmap", (unsigned long)FIXADDR_START,
> @@ -553,7 +553,7 @@ static inline void setup_vm_final(void)
>  #endif /* CONFIG_MMU */
>
>  #ifdef CONFIG_STRICT_KERNEL_RWX
> -void protect_kernel_text_data(void)
> +void __init protect_kernel_text_data(void)
>  {
>         unsigned long text_start = (unsigned long)_start;
>         unsigned long init_text_start = (unsigned long)__init_text_begin;
> diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
> index ec0029097251..e459290d2629 100644
> --- a/arch/riscv/mm/kasan_init.c
> +++ b/arch/riscv/mm/kasan_init.c
> @@ -48,7 +48,7 @@ asmlinkage void __init kasan_early_init(void)
>         local_flush_tlb_all();
>  }
>
> -static void kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long end)
> +static void __init kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long end)
>  {
>         phys_addr_t phys_addr;
>         pte_t *ptep, *base_pte;
> @@ -70,7 +70,7 @@ static void kasan_populate_pte(pmd_t *pmd, unsigned long vaddr, unsigned long en
>         set_pmd(pmd, pfn_pmd(PFN_DOWN(__pa(base_pte)), PAGE_TABLE));
>  }
>
> -static void kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long end)
> +static void __init kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long end)
>  {
>         phys_addr_t phys_addr;
>         pmd_t *pmdp, *base_pmd;
> @@ -105,7 +105,7 @@ static void kasan_populate_pmd(pgd_t *pgd, unsigned long vaddr, unsigned long en
>         set_pgd(pgd, pfn_pgd(PFN_DOWN(__pa(base_pmd)), PAGE_TABLE));
>  }
>
> -static void kasan_populate_pgd(unsigned long vaddr, unsigned long end)
> +static void __init kasan_populate_pgd(unsigned long vaddr, unsigned long end)
>  {
>         phys_addr_t phys_addr;
>         pgd_t *pgdp = pgd_offset_k(vaddr);
> diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c
> index ace74dec7492..3b7b6e4d025e 100644
> --- a/arch/riscv/mm/ptdump.c
> +++ b/arch/riscv/mm/ptdump.c
> @@ -331,7 +331,7 @@ static int ptdump_show(struct seq_file *m, void *v)
>
>  DEFINE_SHOW_ATTRIBUTE(ptdump);
>
> -static int ptdump_init(void)
> +static int __init ptdump_init(void)
>  {
>         unsigned int i, j;
>
> --
> 2.31.0
>
>