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Subject: [tip: objtool/core] objtool: Remove superfluous dead_end_function()
check
Cc: Josh Poimboeuf <jpoimboe@kernel.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>, x86@kernel.org,
linux-kernel@vger.kernel.org
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[tip:,objtool/core] objtool: Remove superfluous dead_end_function() check
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Commit Message
tip-bot2 for Thomas Gleixner
April 14, 2023, 2:47 p.m. UTC
The following commit has been merged into the objtool/core branch of tip: Commit-ID: 6126ed5dfbc656374e851bfdfb128f3aa9e1263a Gitweb: https://git.kernel.org/tip/6126ed5dfbc656374e851bfdfb128f3aa9e1263a Author: Josh Poimboeuf <jpoimboe@kernel.org> AuthorDate: Wed, 12 Apr 2023 12:03:22 -07:00 Committer: Peter Zijlstra <peterz@infradead.org> CommitterDate: Fri, 14 Apr 2023 16:08:29 +02:00 objtool: Remove superfluous dead_end_function() check annotate_call_site() already sets 'insn->dead_end' for calls to dead end functions. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/5d603a301e9a8b1036b61503385907e154867ace.1681325924.git.jpoimboe@kernel.org --- tools/objtool/check.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 9de3972..1cf2e28 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -4078,8 +4078,7 @@ static bool ignore_unreachable_insn(struct objtool_file *file, struct instructio * It may also insert a UD2 after calling a __noreturn function. */ prev_insn = prev_insn_same_sec(file, insn); - if ((prev_insn->dead_end || - dead_end_function(file, insn_call_dest(prev_insn))) && + if (prev_insn->dead_end && (insn->type == INSN_BUG || (insn->type == INSN_JUMP_UNCONDITIONAL && insn->jump_dest && insn->jump_dest->type == INSN_BUG)))