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mm: debug_page_alloc: fix type mismatch for debug_guardpage_minorder

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The debug_guardpage_minorder local variable is declared as unsigned int,
but debug_guardpage_minorder_setup() uses unsigned long and kstrtoul() to
parse the value.

Use kstrtouint() with unsigned int local variable to match the actual type
of _debug_guardpage_minorder.  Also fix the format specifier from %lu to
%u accordingly.

Link: https://lore.kernel.org/20260805093108.2352900-1-ye.liu@linux.dev
Signed-off-by: Ye Liu <liuye@kylinos.cn>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ye Liu 2026-08-05 17:31:07 +08:00 committed by Andrew Morton
parent 391f057f44
commit bb3e3c5c2d
1 changed files with 3 additions and 3 deletions
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6
mm/debug_page_alloc.c
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@ -20,14 +20,14 @@ early_param("debug_pagealloc", early_debug_pagealloc);
static int __init debug_guardpage_minorder_setup(char *buf)
{
unsigned long res;
unsigned int res;
if (kstrtoul(buf, 10, &res) < 0 || res > MAX_PAGE_ORDER / 2) {
if (kstrtouint(buf, 10, &res) < 0 || res > MAX_PAGE_ORDER / 2) {
pr_err("Bad debug_guardpage_minorder value: %s\n", buf);
return 0;
}
_debug_guardpage_minorder = res;
pr_info("Setting debug_guardpage_minorder to %lu\n", res);
pr_info("Setting debug_guardpage_minorder to %u\n", res);
return 0;
}
early_param("debug_guardpage_minorder", debug_guardpage_minorder_setup);