+ mm-show_mem-fix-format-string-inconsistencies-and-type-mismatches.patch added to mm-new branch

The patch titled
     Subject: mm/show_mem: fix format string inconsistencies and type mismatches
has been added to the -mm mm-new branch.  Its filename is
     mm-show_mem-fix-format-string-inconsistencies-and-type-mismatches.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-show_mem-fix-format-string-inconsistencies-and-type-mismatches.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: Ye Liu <[email protected]>
Subject: mm/show_mem: fix format string inconsistencies and type mismatches
Date: Wed, 5 Aug 2026 10:15:55 +0800

Fix five format string issues in show_free_areas() and __show_mem():

1-2. reserved_highatomic and free_highatomic: %luKB -> %lukB
   The uppercase "KB" is inconsistent with all other fields in the
   same output block and with /proc/meminfo convention.

3. local_pcp: %ukB -> %lukB with explicit (unsigned long) cast
   per_cpu_pages.count is int, so K(count) yields int. Using %u
   was a signed/unsigned mismatch. Cast to unsigned long and use
   %lu for consistency with all other K() usages in the file.

4. total pagecache pages: %ld -> %lu
   global_node_page_state() returns unsigned long. Using %ld is a
   signedness mismatch caught by gcc -Wformat-signedness.

5. hwpoisoned pages: %lu -> %ld
   atomic_long_read() returns long (signed). Using %lu is a
   signedness mismatch caught by gcc -Wformat-signedness.

Verified with: make KCFLAGS="-Wformat -Wformat-signedness" mm/show_mem.o

Link: https://lore.kernel.org/[email protected]
Signed-off-by: Ye Liu <[email protected]>
Acked-by: Vlastimil Babka (SUSE) <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Cc: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 mm/show_mem.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- a/mm/show_mem.c~mm-show_mem-fix-format-string-inconsistencies-and-type-mismatches
+++ a/mm/show_mem.c
@@ -309,8 +309,8 @@ static void show_free_areas(unsigned int
 			" min:%lukB"
 			" low:%lukB"
 			" high:%lukB"
-			" reserved_highatomic:%luKB"
-			" free_highatomic:%luKB"
+			" reserved_highatomic:%lukB"
+			" free_highatomic:%lukB"
 			" active_anon:%lukB"
 			" inactive_anon:%lukB"
 			" active_file:%lukB"
@@ -323,7 +323,7 @@ static void show_free_areas(unsigned int
 			" mlocked:%lukB"
 			" bounce:%lukB"
 			" free_pcp:%lukB"
-			" local_pcp:%ukB"
+			" local_pcp:%lukB"
 			" free_cma:%lukB"
 			"\n",
 			zone->name,
@@ -350,7 +350,7 @@ static void show_free_areas(unsigned int
 			K(zone_page_state(zone, NR_MLOCK)),
 			0UL,
 			K(free_pcp),
-			K(this_cpu_read(zone->per_cpu_pageset->count)),
+			K((unsigned long)this_cpu_read(zone->per_cpu_pageset->count)),
 			K(zone_page_state(zone, NR_FREE_CMA_PAGES)));
 		printk("lowmem_reserve[]:");
 		for (i = 0; i < MAX_NR_ZONES; i++)
@@ -400,7 +400,7 @@ static void show_free_areas(unsigned int
 		hugetlb_show_meminfo_node(nid);
 	}
 
-	printk("%ld total pagecache pages\n", global_node_page_state(NR_FILE_PAGES));
+	printk("%lu total pagecache pages\n", global_node_page_state(NR_FILE_PAGES));
 
 	show_swap_cache_info();
 }
@@ -430,7 +430,7 @@ void __show_mem(unsigned int filter, con
 	printk("%lu pages cma reserved\n", totalcma_pages);
 #endif
 #ifdef CONFIG_MEMORY_FAILURE
-	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
+	printk("%ld pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
 #endif
 #ifdef CONFIG_MEM_ALLOC_PROFILING
 	static DEFINE_SPINLOCK(mem_alloc_profiling_spinlock);
_

Patches currently in -mm which might be from [email protected] are

mm-debug_page_alloc-fix-type-mismatch-for-debug_guardpage_minorder.patch
mm-show_mem-fix-format-string-inconsistencies-and-type-mismatches.patch