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Date: Thu, 4 Apr 2024 11:17:44 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Arnd Bergmann <arnd@...nel.org>
Cc: Andrey Ryabinin <ryabinin.a.a@...il.com>, Arnd Bergmann <arnd@...db.de>,
Alexander Potapenko <glider@...gle.com>, Andrey Konovalov
<andreyknvl@...il.com>, Dmitry Vyukov <dvyukov@...gle.com>, Vincenzo
Frascino <vincenzo.frascino@....com>, Mark Rutland <mark.rutland@....com>,
kasan-dev@...glegroups.com, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kasan: hw_tags: include linux/vmalloc.h
On Thu, 4 Apr 2024 14:44:30 +0200 Arnd Bergmann <arnd@...nel.org> wrote:
> From: Arnd Bergmann <arnd@...db.de>
>
> 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];
> | ^~
Thanks, but I'd like to know which patch this patch is fixing, please.
Is it mainline or linux-next? I'm suspecting it might be a fix for
fix-missing-vmalloch-includes.patch but without knowing how to
reproduce this I can't determine anything.
> --- 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"
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