linux-kernel - [tip:core/urgent] objtool: Fix Clang enum conversion warning

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Message-ID: <tip-e7e83dd3ff1dd2f9e60213f6eedc7e5b08192062@git.kernel.org>
Date:   Thu, 28 Dec 2017 07:37:25 -0800
From:   tip-bot for Lukas Bulwahn <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, mingo@...nel.org, torvalds@...ux-foundation.org,
        der.herr@...r.at, peterz@...radead.org, jslaby@...e.cz,
        nick.desaulniers@...il.com, lukas.bulwahn@...il.com,
        linux-kernel@...r.kernel.org, tglx@...utronix.de,
        jpoimboe@...hat.com
Subject: [tip:core/urgent] objtool: Fix Clang enum conversion warning

Commit-ID:  e7e83dd3ff1dd2f9e60213f6eedc7e5b08192062
Gitweb:     https://git.kernel.org/tip/e7e83dd3ff1dd2f9e60213f6eedc7e5b08192062
Author:     Lukas Bulwahn <lukas.bulwahn@...il.com>
AuthorDate: Tue, 26 Dec 2017 15:27:20 -0600
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 28 Dec 2017 13:11:13 +0100

objtool: Fix Clang enum conversion warning

Fix the following Clang enum conversion warning:

  arch/x86/decode.c:141:20: error: implicit conversion from enumeration
  type 'enum op_src_type' to different enumeration
  type 'enum op_dest_type' [-Werror,-Wenum-conversion]

    op->dest.type = OP_SRC_REG;
		  ~ ^~~~~~~~~~

It just happened to work before because OP_SRC_REG and OP_DEST_REG have
the same value.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
Reviewed-by: Nicholas Mc Guire <der.herr@...r.at>
Reviewed-by: Nick Desaulniers <nick.desaulniers@...il.com>
Cc: Jiri Slaby <jslaby@...e.cz>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")
Link: http://lkml.kernel.org/r/b4156c5738bae781c392e7a3691aed4514ebbdf2.1514323568.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/objtool/arch/x86/decode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index 8acfc47..540a209 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -138,7 +138,7 @@ int arch_decode_instruction(struct elf *elf, struct section *sec,
 			*type = INSN_STACK;
 			op->src.type = OP_SRC_ADD;
 			op->src.reg = op_to_cfi_reg[modrm_reg][rex_r];
-			op->dest.type = OP_SRC_REG;
+			op->dest.type = OP_DEST_REG;
 			op->dest.reg = CFI_SP;
 		}
 		break;