[PATCH] mm/huge_memory: fix various coding style warnings

From: Christos Skarlos

Date: Thu Sep 03 2026 - 05:33:47 EST


Resolve coding style issues flagged by checkpatch.pl Specifically:
- Add missing blank lines after variable declarations.
- Remove unnecessary braces {} for a single statement block.

No functional changes are introduced.

Signed-off-by: Christos Skarlos <christosskarlos.kernel@xxxxxxxxx>
---
mm/huge_memory.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index ced400f72d43..371ee8d38c45 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1104,6 +1104,7 @@ subsys_initcall(hugepage_init);
static int __init setup_transparent_hugepage(char *str)
{
int ret = 0;
+
if (!str)
goto out;
if (!strcmp(str, "always")) {
@@ -1510,6 +1511,7 @@ static void set_huge_zero_folio(pgtable_t pgtable, struct mm_struct *mm,
struct folio *zero_folio)
{
pmd_t entry;
+
entry = folio_mk_pmd(zero_folio, vma->vm_page_prot);
entry = pmd_mkspecial(entry);
pgtable_trans_huge_deposit(mm, pmd, pgtable);
@@ -2613,6 +2615,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,

if (pmd_move_must_withdraw(new_ptl, old_ptl, vma)) {
pgtable_t pgtable;
+
pgtable = pgtable_trans_huge_withdraw(mm, old_pmd);
pgtable_trans_huge_deposit(mm, new_pmd, pgtable);
}
@@ -3901,9 +3904,8 @@ int folio_check_splittable(struct folio *folio, unsigned int new_order,
* swapcache folio split. Only uniform split to order-0 can be used
* here.
*/
- if ((split_type == SPLIT_TYPE_NON_UNIFORM || new_order) && folio_test_swapcache(folio)) {
+ if ((split_type == SPLIT_TYPE_NON_UNIFORM || new_order) && folio_test_swapcache(folio))
return -EINVAL;
- }

if (is_huge_zero_folio(folio))
return -EINVAL;
--
2.55.0