From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 95209CCA476 for ; Fri, 10 Oct 2025 15:44:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=r+LMswvy0/iBl77tT8KFbSuRWur8spUwRZ2dnIa9OcU=; b=IJ+vURytRlBOdp CaYE9Uy8OuocWbfbbiq9xEyLJ6C7YwtG8oddoBMT6UVZ+kwY3ffzNct2Q7hRVgQaqavGkL3EmU39Z HksXo3cjP3fs5nmOB3hbH2iCMcj2rVwo2IkmfpEoHQpot/Wy1cYEkPCm39YnsaJGBykGeZfVU3WiS tTT1Fz/Ve1lYwPfrx8qB0zC8A3ZaMcuuOTuT8Bbw1K/SKla+dYaNlNxx9GKot2DQXEEJI4bE18kG1 Y9KlzaHsX0EvCkdTY3bM97WHlopc3yhq8g0NjmO2urqjLEPI5Ki21OVxWCDHLhTK/YEVjuTGnl6b+ OdV12JBjK8pKAxN3qL/Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v7FIR-00000008s8R-3FIW; Fri, 10 Oct 2025 15:44:43 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v7FIP-00000008s67-42A3 for linux-riscv@bombadil.infradead.org; Fri, 10 Oct 2025 15:44:42 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=rr6xJ3c+EJv9VO46QEF+ZoB4rWgfcJmzisR3J3XhXsY=; b=Hn3ZIfk14D/QTUoy7OKJtAL0SI HAZO1Hj/YaErmpNwJc0ri/yn4F3kfF9ktc9Bg20BszCQxcNDwhBkTYuQ7vwTO9TcaYVTMvcNQ+Waf IZasYkP1CulNHItuc/7FI+HymARenR/vRsXizC7kKHMnaXDVgkIw3FQZQVL+jTV+b5YoKv/5GRGfb ltigm2pfjy0bVPuA1gddZGYEZiGlleg+0Q8UKq8SCMTOu+n1H6QsAPCnwzQfwxGTweiRZKoiqVjn9 sQ1WfdYmiusINXMV2v7JoLAAUR8QUk5tDKq5OA2+qcRIRkJIglziHIQ7o5y12tymzy1evuy71YoRa 381ToTZg==; Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by casper.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v7FIH-0000000DMDx-1TVv for linux-riscv@lists.infradead.org; Fri, 10 Oct 2025 15:44:40 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760111072; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rr6xJ3c+EJv9VO46QEF+ZoB4rWgfcJmzisR3J3XhXsY=; b=iq8fHquVC4fHvGcuuffqLFHVp1QNwAj0awL/KF0UxMPy81T1r8V5CHR8LIW3YRKo1oEli1 sg6VQvCB/KcXPi6vZEqRiukc3hhGq651NTSmzM0tYgBshW0+rUtpl1Jjs/SLiStVrwzjj7 7E8bMixJ2ZfUbnej68GkwxIQ/1Ep7Xo= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760111072; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rr6xJ3c+EJv9VO46QEF+ZoB4rWgfcJmzisR3J3XhXsY=; b=iq8fHquVC4fHvGcuuffqLFHVp1QNwAj0awL/KF0UxMPy81T1r8V5CHR8LIW3YRKo1oEli1 sg6VQvCB/KcXPi6vZEqRiukc3hhGq651NTSmzM0tYgBshW0+rUtpl1Jjs/SLiStVrwzjj7 7E8bMixJ2ZfUbnej68GkwxIQ/1Ep7Xo= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760111072; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rr6xJ3c+EJv9VO46QEF+ZoB4rWgfcJmzisR3J3XhXsY=; b=iq8fHquVC4fHvGcuuffqLFHVp1QNwAj0awL/KF0UxMPy81T1r8V5CHR8LIW3YRKo1oEli1 sg6VQvCB/KcXPi6vZEqRiukc3hhGq651NTSmzM0tYgBshW0+rUtpl1Jjs/SLiStVrwzjj7 7E8bMixJ2ZfUbnej68GkwxIQ/1Ep7Xo= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-347-meY_oTX3Ni6d3twePwCogw-1; Fri, 10 Oct 2025 11:44:28 -0400 X-MC-Unique: meY_oTX3Ni6d3twePwCogw-1 X-Mimecast-MFC-AGG-ID: meY_oTX3Ni6d3twePwCogw_1760111064 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 313C31800357; Fri, 10 Oct 2025 15:44:24 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.45.224.29]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id D9B8F1800576; Fri, 10 Oct 2025 15:44:08 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, rcu@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Josh Poimboeuf , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. 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 14/29] perf/x86/amd: Mark perf_lopwr_cb static call as __ro_after_init Date: Fri, 10 Oct 2025 17:38:24 +0200 Message-ID: <20251010153839.151763-15-vschneid@redhat.com> In-Reply-To: <20251010153839.151763-1-vschneid@redhat.com> References: <20251010153839.151763-1-vschneid@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251010_164434_790721_DFA0C3C3 X-CRM114-Status: GOOD ( 12.79 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv