Re: [PATCH 3/9] powerpc/mm: Remove extern from function definition

[Breno Leitao <leitao@debian.org>]

hi Christophe,

On 10/23/2018 12:38 PM, LEROY Christophe wrote:
> Breno Leitao <leitao@debian.org> a écrit :
>>
>> This patch removes the keyword from the definition part, while keeps
>> it in
>> the declaration part.
> 
> I think checkpatch also says that extern should be avoided in declarations.

Thanks for the review. I tried to look at this complain, but I didn't see
this behavior on checkpatch.pl from kernel 4.19. I created a commit that adds
a new extern prototype and checked the patch. Take a look:

# git show

	commit 720cd4ee7bf3c0607eaea79e209b719bac79508e
	Author: Breno Leitao <leitao@debian.org>
	Date:   Wed Oct 24 10:31:54 2018 -0400

	powerpc/mm: New test function

	New test function.

	Signed-off-by: Breno Leitao <leitao@debian.org>

	diff --git a/arch/powerpc/include/asm/hugetlb.h
	b/arch/powerpc/include/asm/hugetlb.h
	index 2d00cc530083..4a348e42cab6 100644
	--- a/arch/powerpc/include/asm/hugetlb.h
	+++ b/arch/powerpc/include/asm/hugetlb.h
	@@ -167,6 +167,8 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
				      unsigned long addr, pte_t *ptep,
				      pte_t pte, int dirty);

	+extern int test(int foo);
	+
	static inline pte_t huge_ptep_get(pte_t *ptep)
	{
		return *ptep;

	diff --git a/mm/hugetlb.c b/mm/hugetlb.c
	index 5c390f5a5207..2e8f5f77f7f6 100644
	--- a/mm/hugetlb.c
	+++ b/mm/hugetlb.c
	@@ -3204,6 +3204,11 @@ static void set_huge_ptep_writable(struct
	vm_area_struct *vma,
		update_mmu_cache(vma, address, ptep);
	}

	+int test(int foo)
	+{
	+	return foo;
	+}
	+
	bool is_hugetlb_entry_migration(pte_t pte)
	{
	swp_entry_t swp;


# scripts/checkpatch.pl -g HEAD

	total: 0 errors, 0 warnings, 19 lines checked

	Commit 720cd4ee7bf3 ("powerpc/mm: New test function") has no obvious
	style problems and is ready for submission.