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From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, andreyknvl@gmail.com,
	andy.shevchenko@gmail.com, catalin.marinas@arm.com,
	dvyukov@google.com, elver@google.com, glider@google.com,
	linux-mm@kvack.org, mm-commits@vger.kernel.org, pcc@google.com,
	ryabinin.a.a@gmail.com, torvalds@linux-foundation.org,
	vincenzo.frascino@arm.com
Subject: [patch 03/13] kasan: fix build by including kernel.h
Date: Wed, 14 Jul 2021 21:26:40 -0700	[thread overview]
Message-ID: <20210715042640.2WLhaWjjL%akpm@linux-foundation.org> (raw)
In-Reply-To: <20210714212609.fad116e584ba1194981a6294@linux-foundation.org>

From: Marco Elver <elver@google.com>
Subject: kasan: fix build by including kernel.h

The <linux/kasan.h> header relies on _RET_IP_ being defined, and had been
receiving that definition via inclusion of bug.h which includes kernel.h. 
However, since f39650de687e ("kernel.h: split out panic and oops helpers")
that is no longer the case and get the following build error when building
CONFIG_KASAN_HW_TAGS on arm64:

  In file included from arch/arm64/mm/kasan_init.c:10:
  ./include/linux/kasan.h: In function 'kasan_slab_free':
  ./include/linux/kasan.h:230:39: error: '_RET_IP_' undeclared (first use in this function)
    230 |   return __kasan_slab_free(s, object, _RET_IP_, init);

Fix it by including kernel.h from kasan.h.

Link: https://lkml.kernel.org/r/20210705072716.2125074-1-elver@google.com
Fixes: f39650de687e ("kernel.h: split out panic and oops helpers")
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/kasan.h |    1 +
 1 file changed, 1 insertion(+)

--- a/include/linux/kasan.h~kasan-fix-build-by-including-kernelh
+++ a/include/linux/kasan.h
@@ -3,6 +3,7 @@
 #define _LINUX_KASAN_H
 
 #include <linux/bug.h>
+#include <linux/kernel.h>
 #include <linux/static_key.h>
 #include <linux/types.h>
 
_


  parent reply	other threads:[~2021-07-15  4:26 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-15  4:26 incoming Andrew Morton
2021-07-15  4:26 ` [patch 01/13] mm: move helper to check slub_debug_enabled Andrew Morton
2021-07-15  4:26 ` [patch 02/13] kasan: add memzero init for unaligned size at DEBUG Andrew Morton
2021-07-15  4:26 ` Andrew Morton [this message]
2021-07-15  4:26 ` [patch 04/13] Revert "mm/page_alloc: make should_fail_alloc_page() static" Andrew Morton
2021-07-15  4:26 ` [patch 05/13] mm/page_alloc: avoid page allocator recursion with pagesets.lock held Andrew Morton
2021-07-15  4:26 ` [patch 06/13] mm/page_alloc: correct return value when failing at preparing Andrew Morton
2021-07-15  4:26 ` [patch 07/13] mm/page_alloc: further fix __alloc_pages_bulk() return value Andrew Morton
2021-07-15  4:26 ` [patch 08/13] mm: fix the try_to_unmap prototype for !CONFIG_MMU Andrew Morton
2021-07-15  4:26 ` [patch 09/13] lib/test_hmm: remove set but unused page variable Andrew Morton
2021-07-15  4:27 ` [patch 10/13] hfs: add missing clean-up in hfs_fill_super Andrew Morton
2021-07-15  4:27 ` [patch 11/13] hfs: fix high memory mapping in hfs_bnode_read Andrew Morton
2021-07-15  4:27 ` [patch 12/13] hfs: add lock nesting notation to hfs_find_init Andrew Morton
2021-07-15  4:27 ` [patch 13/13] mm/hugetlb: fix refs calculation from unaligned @vaddr Andrew Morton

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