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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 , Shrikanth Hegde Subject: [PATCH v7 14/31] perf/x86/amd: Mark perf_lopwr_cb static call as __ro_after_init Date: Fri, 14 Nov 2025 16:01:16 +0100 Message-ID: <20251114150133.1056710-15-vschneid@redhat.com> In-Reply-To: <20251114150133.1056710-1-vschneid@redhat.com> References: <20251114150133.1056710-1-vschneid@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 872A22001B X-Stat-Signature: psuneh3xhnhku4ibruijo74ttkgexm1k X-Rspam-User: X-HE-Tag: 1763132757-431279 X-HE-Meta: U2FsdGVkX1/fukRX75bXpzAGrqxHae7Iv79PBYLu3EQgAIAidEWSqEkMAG6aQZMM3JoYvmZGLKpPuybT2XvwCmVUVg4QtXDkKMbS3Sh9rMru2JhOJQ8C3cTTsGz9xGaidsp/+T7+75zlcf8VJ9G9AyXiFbHvgGNgucg6svj+vDXhpU5lfFD5nMRYcFSO4XqFSmrS5cnoMT4/iUXTSfM3UbVnBlP4U9npxqWm4eOIIUoGo8outlpNwsageWnxEkMAfwEteEK/80utG9VYSNs0pQ95RfOQOkKBiAZ6rbmnxpacPWm9eVZMmxZbWTBIYaOOJgSYhh+N5dZke8JX5C3mLiEnZMMgw9512QdgsnapZNch+ZhcLn1MNQF7FKOvQQqZupPs2k0SjR2altX1pWOjmkjigxvctrhtczsstwnazKzND2qQvSrdCZ+ZYfKXGLbsFSe9vRIN5u6zRNS34dBmUBhb3jBZi0v4OAWS4PbWDeR1o34osXShjS5G+ZrZ9m7hfv5Eeu4j96dTtMx0qTNnwm6/Mu+D8SUK+lSWqhdnXui1U8t0yyZZNAKfAZ0a9a5M1Fng+Pl8+QUuyOYeOtEs5xqTpnsEvLJfRUr1soCz8YvtQhIB7O4N3k+N9TcbRPYVTVOtdUAgdxn8Ov46ioY2J2TZW2COT6UGb7A+LtJfA9dc1P4ugkHHSup8w3lNMGONPRec+MA9enUGcpRlqHouAmda2O8vjMJOI+3rC25JCZ5lj9LDzFxjZxx/2bpMGCpc0ZAIU8qfqH338h/MNqRUcXfqfKXHb0pka5akKGA7yAEmPwqyc0zr2HUMzKx6Cc2yN2bssVKpZ/lfUpxQ9JBeAb9fNXVoeVy6K3X3pXmO6wi1rnw8WEqT2Z1kOkMyA1QAQ6QxkeL+eYOPZD1FdJ/kWKfkaot7g9wTSbA0ZuzBev02jKIwmVVUHbfOWZq6ChHuVcq1UsgbdyOdpscTzKd A0wL8xb9 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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: Later commits will cause objtool to warn about static calls being used in .noinstr sections in order to safely defer instruction patching IPIs targeted at NOHZ_FULL CPUs. perf_lopwr_cb is used in .noinstr code, but is only ever updated in __init amd_brs_lopwr_init(), and can thus be marked as __ro_after_init. Reported-by: Josh Poimboeuf Signed-off-by: Valentin Schneider --- arch/x86/events/amd/brs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/amd/brs.c b/arch/x86/events/amd/brs.c index 06f35a6b58a5b..71d7ba774a063 100644 --- a/arch/x86/events/amd/brs.c +++ b/arch/x86/events/amd/brs.c @@ -423,7 +423,7 @@ void noinstr perf_amd_brs_lopwr_cb(bool lopwr_in) } } -DEFINE_STATIC_CALL_NULL(perf_lopwr_cb, perf_amd_brs_lopwr_cb); +DEFINE_STATIC_CALL_NULL_RO(perf_lopwr_cb, perf_amd_brs_lopwr_cb); EXPORT_STATIC_CALL_TRAMP_GPL(perf_lopwr_cb); void __init amd_brs_lopwr_init(void) -- 2.51.0