[PATCH] kasan: hw_tags: include linux/vmalloc.h

[Arnd Bergmann <arnd@xxxxxxxxxx>]

From: Arnd Bergmann <arnd@xxxxxxxx>

This header is no longer included implicitly and instead needs to be
pulled in directly:

mm/kasan/hw_tags.c: In function 'unpoison_vmalloc_pages':
mm/kasan/hw_tags.c:280:16: error: implicit declaration of function 'find_vm_area'; did you mean 'find_vma_prev'? [-Werror=implicit-function-declaration]
  280 |         area = find_vm_area((void *)addr);
      |                ^~~~~~~~~~~~
      |                find_vma_prev
mm/kasan/hw_tags.c:280:14: error: assignment to 'struct vm_struct *' from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
  280 |         area = find_vm_area((void *)addr);
      |              ^
mm/kasan/hw_tags.c:284:29: error: invalid use of undefined type 'struct vm_struct'
  284 |         for (i = 0; i < area->nr_pages; i++) {
      |                             ^~
mm/kasan/hw_tags.c:285:41: error: invalid use of undefined type 'struct vm_struct'
  285 |                 struct page *page = area->pages[i];
      |                                         ^~

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 mm/kasan/hw_tags.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 2b994092a2d4..9958ebc15d38 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -16,6 +16,7 @@
 #include <linux/static_key.h>
 #include <linux/string.h>
 #include <linux/types.h>
+#include <linux/vmalloc.h>
 
 #include "kasan.h"
 
-- 
2.39.2