[PATCH 1/1] mm: vmalloc: Fix a warning in the crash_save_vmcoreinfo_init()

From: Uladzislau Rezki (Sony)
Date: Thu Jan 11 2024 - 14:23:42 EST


The vmcoreinfo_append_str() function expects "long unsigned int"
type as a second argument(0x%lx) to print a beginning of vmalloc
start address which is defined as a VMALLOC_START macro.

For some architectures it can be considered as "int" type, for
example m68 generates a compile warning message. To fix it cast
a second argument to "unsigned long".

Fixes: 9bdb180b2d ("mm/vmalloc: remove vmap_area_list")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202401120218.y469Puyf-lkp@xxxxxxxxx/
Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
---
kernel/crash_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index b60de490c1fc..49b31e59d3cc 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c
@@ -748,7 +748,7 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_SYMBOL_ARRAY(swapper_pg_dir);
#endif
VMCOREINFO_SYMBOL(_stext);
- vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
+ vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", (unsigned long) VMALLOC_START);

#ifndef CONFIG_NUMA
VMCOREINFO_SYMBOL(mem_map);
--
2.39.2