linux-kernel - [PATCH] sparse doesn't support indirect

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Message-ID: <20180227194828.GA29918@bombadil.infradead.org>
Date:   Tue, 27 Feb 2018 11:48:28 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] sparse doesn't support indirect_branch attribute


Don't use __attribute__((indirect_branch)) if we're compiling with
sparse.

Signed-off-by: Matthew Wilcox <mawilcox@...rosoft.com>

diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index e2c7f4369eff..b6be4cc25e9d 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -93,7 +93,7 @@
 #define __weak		__attribute__((weak))
 #define __alias(symbol)	__attribute__((alias(#symbol)))
 
-#ifdef RETPOLINE
+#if defined(RETPOLINE) && !defined(__CHECKER__)
 #define __noretpoline __attribute__((indirect_branch("keep")))
 #endif