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 22B97D0D141 for ; Wed, 7 Jan 2026 17:14:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3hbwAqQmwcKkcTQlzwNL4cPS7/2BgqWyWqgU0a+KMdc=; b=nEMgQiOR/qfmYdsSR4gi/R4a0g KLWztRwt+qzKBL0BwqAO27ycHzbGOAUATW1g91H7TpLNcWt95cocLXTC9FX1Oj19Qx1FWypDOjhxF 8dIvCtqY8mlz9M0t5uwluUrt34KK/4vYuVUvsq5i0mqMVMfUiVsNSUwffDLCojWZOmLrQfeqFRH2q a2Z7sFUEdFn/nhiSgoItEXMNjEeSNOwja2Z2QtS+eghGchiIQ9WxgHP4N+XUKBOy8vKbxlanYU8f7 8cNm40JNnrxxQgXOPLb3wErsNtZSl1bqCtN3oiNah7ss9iCjARwQvYL36mpmd67aa/uXlEc/phAf+ xyOIwk+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdX6t-0000000FMJ7-1IR9; Wed, 07 Jan 2026 17:14:15 +0000 Received: from smtprelay0010.hostedemail.com ([216.40.44.10] helo=relay.hostedemail.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdX6q-0000000FMIl-2bhT for linux-arm-kernel@lists.infradead.org; Wed, 07 Jan 2026 17:14:13 +0000 Received: from omf10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 0F98113AE00; Wed, 7 Jan 2026 17:14:08 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf10.hostedemail.com (Postfix) with ESMTPA id 6B0F92F; Wed, 7 Jan 2026 17:14:05 +0000 (UTC) Date: Wed, 7 Jan 2026 12:14:32 -0500 From: Steven Rostedt To: Will Deacon Cc: Jiri Olsa , Masami Hiramatsu , Mahe Tardy , Peter Zijlstra , bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, x86@kernel.org, Yonghong Song , Song Liu , Andrii Nakryiko , Mark Rutland Subject: Re: [PATCH bpf-next 1/2] arm64/ftrace,bpf: Fix partial regs after bpf_prog_run Message-ID: <20260107121432.73fccf84@gandalf.local.home> In-Reply-To: References: <20260107093256.54616-1-jolsa@kernel.org> <20260107110814.1dfc9ec0@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 6B0F92F X-Stat-Signature: x699t8kczy5smeco8119n45nwyhjh7kg X-Rspamd-Server: rspamout08 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/eu39LNRtM+1f1vTfX4QNOH6R7Y6POl28= X-HE-Tag: 1767806045-271552 X-HE-Meta: U2FsdGVkX18bqAQ0pJDQFkJKpjD++ZFbUeHomqsNgRoCLor9V56o+Khto2aWB3wznp+gQ2/oE2h1SOvfL+LLrlkN8aerHgOvhp5QuGzQDrvm8wjk50Vo4f6vq+oc6JWvx2wiBBzZ2hZX5Vemc4FHjU/IDUy/Tv1J3di6HgNaVO+5rGvw/ktLj+UOI0+sMf/7CG5uwpl58yJgEdq7b+/+n+w28TiwBvwDT6ffskoAc39+I3kyasYoO2BbRAlNIeUQLEo/HDQr/sh/1PtHym0b+3rwzF5Hx7Cmjngd+TGtg5So6tMt07t6JeHSCHNk9YNPXZgETTRo6t3rcmtjaBukt9lCCBuUE+hd X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260107_091412_724834_F16473AF X-CRM114-Status: GOOD ( 13.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 7 Jan 2026 16:52:52 +0000 Will Deacon wrote: > diff --git a/include/linux/ftrace_regs.h b/include/linux/ftrace_regs.h > index 15627ceea9bc..3ebd8cdac7c6 100644 > --- a/include/linux/ftrace_regs.h > +++ b/include/linux/ftrace_regs.h > @@ -33,6 +33,15 @@ struct ftrace_regs; > #define ftrace_regs_get_frame_pointer(fregs) \ > frame_pointer(&arch_ftrace_regs(fregs)->regs) > > +#else > + > +static __always_inline void > +ftrace_partial_regs_update(const struct ftrace_regs *fregs, struct pt_regs *regs) > +{ > + ftrace_regs_set_instruction_pointer(fregs, instruction_pointer(regs)); > + ftrace_regs_set_return_value(fregs, regs_return_value(regs)); > +} > + > #endif /* HAVE_ARCH_FTRACE_REGS */ > > /* This can be overridden by the architectures */ Hmm, maybe that would work. Of course you forgot to add the helper for the !HAVE_ARCH_FTRACE_REGS case ;-) -- Steve