linux-kernel - [PATCH] sparse doesn't support struct randomization

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Message-Id: <20180117024539.27354-1-willy@infradead.org>
Date:   Tue, 16 Jan 2018 18:45:39 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Cc:     Matthew Wilcox <mawilcox@...rosoft.com>
Subject: [PATCH] sparse doesn't support struct randomization

From: Matthew Wilcox <mawilcox@...rosoft.com>

Without this patch, I drown in a sea of unknown attribute warnings

Signed-off-by: Matthew Wilcox <mawilcox@...rosoft.com>
---
 include/linux/compiler-gcc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 2272ded07496..631354acfa72 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -219,7 +219,7 @@
 /* Mark a function definition as prohibited from being cloned. */
 #define __noclone	__attribute__((__noclone__, __optimize__("no-tracer")))
 
-#ifdef RANDSTRUCT_PLUGIN
+#if defined(RANDSTRUCT_PLUGIN) && !defined(__CHECKER__)
 #define __randomize_layout __attribute__((randomize_layout))
 #define __no_randomize_layout __attribute__((no_randomize_layout))
 #endif
-- 
2.15.1