test_printf: Remove separate page_flags variable

Keep flags intact so that we also test what happens when unknown flags
are passed to %pGp.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Yafang Shao <laoar.shao@gmail.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20211019142621.2810043-3-willy@infradead.org

Author: Matthew Wilcox (Oracle)

lib/test_printf.c

@@ -605,17 +605,15 @@ static const struct page_flags_test pft[] = {
 
 static void __init
 page_flags_test(int section, int node, int zone, int last_cpupid,
-		int kasan_tag, int flags, const char *name, char *cmp_buf)
+		int kasan_tag, unsigned long flags, const char *name,
+		char *cmp_buf)
 {
 	unsigned long values[] = {section, node, zone, last_cpupid, kasan_tag};
-	unsigned long page_flags = 0;
 	unsigned long size = 0;
 	bool append = false;
 	int i;
 
-	flags &= PAGEFLAGS_MASK;
-	if (flags) {
-		page_flags |= flags;
+	if (flags & PAGEFLAGS_MASK) {
 		snprintf(cmp_buf + size, BUF_SIZE - size, "%s", name);
 		size = strlen(cmp_buf);
 #if SECTIONS_WIDTH || NODES_WIDTH || ZONES_WIDTH || \
@@ -635,7 +633,7 @@ page_flags_test(int section, int node, int zone, int last_cpupid,
 			size = strlen(cmp_buf);
 		}
 
-		page_flags |= (values[i] & pft[i].mask) << pft[i].shift;
+		flags |= (values[i] & pft[i].mask) << pft[i].shift;
 		snprintf(cmp_buf + size, BUF_SIZE - size, "%s=", pft[i].name);
 		size = strlen(cmp_buf);
 		snprintf(cmp_buf + size, BUF_SIZE - size, pft[i].fmt,
@@ -644,7 +642,7 @@ page_flags_test(int section, int node, int zone, int last_cpupid,
 		append = true;
 	}
 
-	test(cmp_buf, "%pGp", &page_flags);
+	test(cmp_buf, "%pGp", &flags);
 }
 
 static void __init