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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2CD04C433F5 for ; Mon, 31 Jan 2022 11:31:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378469AbiAaL2k (ORCPT ); Mon, 31 Jan 2022 06:28:40 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:50086 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359270AbiAaLQp (ORCPT ); Mon, 31 Jan 2022 06:16:45 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 18B606125A; Mon, 31 Jan 2022 11:16:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F3D5C340E8; Mon, 31 Jan 2022 11:16:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643627804; bh=9fgBVNgq6RGY40Q792fEXaIfV/J7zbIly9q8ulp5gc8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pxjazB84qZqLvDB2bDRPmLNaA205aUjijXFCeDo5QzuAZ/sRGsWWGIEilWlNeSo7y DE/h/JvwhRgKdn3SSlQKqKZkcwCuw1OIvTIBYQmfKmx6Eo+/KW/sG/jZTEemuMfxkU N4CyEkdUs+AiOmYDwmeNxjkPLvA3gx8NXsu/S+MQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yordan Karadzhov , Tom Zanussi , "Steven Rostedt (Google)" Subject: [PATCH 5.16 031/200] tracing: Propagate is_signed to expression Date: Mon, 31 Jan 2022 11:54:54 +0100 Message-Id: <20220131105234.619001978@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220131105233.561926043@linuxfoundation.org> References: <20220131105233.561926043@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tom Zanussi commit 097f1eefedeab528cecbd35586dfe293853ffb17 upstream. During expression parsing, a new expression field is created which should inherit the properties of the operands, such as size and is_signed. is_signed propagation was missing, causing spurious errors with signed operands. Add it in parse_expr() and parse_unary() to fix the problem. Link: https://lkml.kernel.org/r/f4dac08742fd7a0920bf80a73c6c44042f5eaa40.1643319703.git.zanussi@kernel.org Cc: stable@vger.kernel.org Fixes: 100719dcef447 ("tracing: Add simple expression support to hist triggers") Reported-by: Yordan Karadzhov BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215513 Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (Google) Signed-off-by: Greg Kroah-Hartman --- kernel/trace/trace_events_hist.c | 3 +++ 1 file changed, 3 insertions(+) --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -2487,6 +2487,8 @@ static struct hist_field *parse_unary(st (HIST_FIELD_FL_TIMESTAMP | HIST_FIELD_FL_TIMESTAMP_USECS); expr->fn = hist_field_unary_minus; expr->operands[0] = operand1; + expr->size = operand1->size; + expr->is_signed = operand1->is_signed; expr->operator = FIELD_OP_UNARY_MINUS; expr->name = expr_str(expr, 0); expr->type = kstrdup_const(operand1->type, GFP_KERNEL); @@ -2703,6 +2705,7 @@ static struct hist_field *parse_expr(str /* The operand sizes should be the same, so just pick one */ expr->size = operand1->size; + expr->is_signed = operand1->is_signed; expr->operator = field_op; expr->type = kstrdup_const(operand1->type, GFP_KERNEL);