From: Yury Norov <ynorov@nvidia.com>
Date: Tue, 19 May 2026 16:30:56 +0000 (-0400)
Subject: cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba220b42c05561761b764089b27a34fd2c6cdc19;p=thirdparty%2Fkernel%2Flinux.git

cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()

In preparation for removing bitmap_print_to_pagebuf(), switch
cpumap_print_to_pagebuf() to using scnprintf("%*pbl").

Signed-off-by: Yury Norov <ynorov@nvidia.com>
---

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 80211900f3739..d3cda05449541 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -13,8 +13,10 @@
 #include <linux/cpumask_types.h>
 #include <linux/gfp_types.h>
 #include <linux/numa.h>
+#include <linux/sprintf.h>
 #include <linux/threads.h>
 #include <linux/types.h>
+#include <vdso/page.h>
 
 #include <asm/bug.h>
 
@@ -1326,8 +1328,9 @@ static __always_inline bool cpu_dying(unsigned int cpu)
 static __always_inline ssize_t
 cpumap_print_to_pagebuf(bool list, char *buf, const struct cpumask *mask)
 {
-	return bitmap_print_to_pagebuf(list, buf, cpumask_bits(mask),
-				      nr_cpu_ids);
+	/* Opencode offset_in_page(buf) to not include linux/mm.h */
+	return scnprintf(buf, PAGE_SIZE - ((unsigned long)buf & ~PAGE_MASK),
+			 list ? "%*pbl\n" : "%*pb\n", cpumask_pr_args(mask));
 }
 
 /**