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Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnaldo Carvalho de Melo , Paolo Bonzini , Arnd Bergmann , Frederic Weisbecker , "Paul E. McKenney" , Jason Baron , Steven Rostedt , Ard Biesheuvel , Sami Tolvanen , "David S. Miller" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Mel Gorman , Andrew Morton , Masahiro Yamada , Han Shen , Rik van Riel , Jann Horn , Dan Carpenter , Oleg Nesterov , Juri Lelli , Clark Williams , Yair Podemsky , Marcelo Tosatti , Daniel Wagner , Petr Tesarik Subject: [PATCH v6 02/29] objtool: Flesh out warning related to pv_ops[] calls Date: Fri, 10 Oct 2025 17:38:12 +0200 Message-ID: <20251010153839.151763-3-vschneid@redhat.com> In-Reply-To: <20251010153839.151763-1-vschneid@redhat.com> References: <20251010153839.151763-1-vschneid@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Rspam-User: X-Rspamd-Queue-Id: 6A29A18000C X-Rspamd-Server: rspam03 X-Stat-Signature: 44na345uhpghhy1guuf5ocabs6xqm3sf X-HE-Tag: 1760110889-607974 X-HE-Meta: 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 rRuDmxlH 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: I had to look into objtool itself to understand what this warning was about; make it more explicit. Signed-off-by: Valentin Schneider Acked-by: Josh Poimboeuf --- tools/objtool/check.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 5f574ab163cb2..fa9e64a38b2b6 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -3361,7 +3361,7 @@ static bool pv_call_dest(struct objtool_file *file, struct instruction *insn) list_for_each_entry(target, &file->pv_ops[idx].targets, pv_target) { if (!target->sec->noinstr) { - WARN("pv_ops[%d]: %s", idx, target->name); + WARN("pv_ops[%d]: indirect call to %s() leaves .noinstr.text section", idx, target->name); file->pv_ops[idx].clean = false; } } -- 2.51.0