From patchwork Fri May 20 19:43:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jakub Kicinski X-Patchwork-Id: 576895 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 7656CC433F5 for ; Fri, 20 May 2022 19:43:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353284AbiETTn3 (ORCPT ); Fri, 20 May 2022 15:43:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350599AbiETTn0 (ORCPT ); Fri, 20 May 2022 15:43:26 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA2F8199484; Fri, 20 May 2022 12:43:25 -0700 (PDT) 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 600C161BD2; Fri, 20 May 2022 19:43:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 89B44C36AE3; Fri, 20 May 2022 19:43:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653075804; bh=EwW7HzXO9OKUwDAZY6TpEn7xpcCwzkVGJ3mCzpAXN4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ar6Ol3wXT9GvdWiMdsj3gwdG0HFN50K60lf+wct7esGB2CGyNr4fqsy3xTmmteGyj yCXD20+7pPWh+q6tiTFsTGAvsNwhqA2LkiSIuVoj/RuI1phxe1DsOftK62reeS5oxI 4nSvILa5g3DKKeWw1FoMCqp/T8Y17QOlK3jCz8LxKr0nwdcFRu2Q81dzc/SFBfmbpo T41+gXTpAUc7JIT5qt+25Z9c2D4hxUiRsZsALzcXlCfrIsHBNWANlpYE1ZALrzO6uK XNsZIwBB4r/X8h/G2UUPnZ5yCb/4fDBmheaElbi2eWnM54xW4rLt7fhWCy2bxAS2q8 qPyQTsSdEn8DA== From: Jakub Kicinski To: kvalo@kernel.org, johannes@sipsolutions.net Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Jakub Kicinski , srini.raju@purelifi.com Subject: [PATCH net-next 1/8] wifi: plfxlc: remove redundant NULL-check for GCC 12 Date: Fri, 20 May 2022 12:43:13 -0700 Message-Id: <20220520194320.2356236-2-kuba@kernel.org> X-Mailer: git-send-email 2.34.3 In-Reply-To: <20220520194320.2356236-1-kuba@kernel.org> References: <20220520194320.2356236-1-kuba@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org GCC is upset that we check the return value of plfxlc_usb_dev() even tho it can't be NULL: drivers/net/wireless/purelifi/plfxlc/usb.c: In function ‘resume’: drivers/net/wireless/purelifi/plfxlc/usb.c:840:20: warning: the comparison will always evaluate as ‘true’ for the address of ‘dev’ will never be NULL [-Waddress] 840 | if (!pl || !plfxlc_usb_dev(pl)) | ^ plfxlc_usb_dev() returns an address of one of the members of pl, so it's safe to drop these checks. Signed-off-by: Jakub Kicinski --- CC: srini.raju@purelifi.com CC: kvalo@kernel.org CC: linux-wireless@vger.kernel.org --- drivers/net/wireless/purelifi/plfxlc/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/purelifi/plfxlc/usb.c b/drivers/net/wireless/purelifi/plfxlc/usb.c index d0e98b2f1365..8519cf0adfff 100644 --- a/drivers/net/wireless/purelifi/plfxlc/usb.c +++ b/drivers/net/wireless/purelifi/plfxlc/usb.c @@ -824,7 +824,7 @@ static int suspend(struct usb_interface *interface, struct plfxlc_usb *pl = get_plfxlc_usb(interface); struct plfxlc_mac *mac = plfxlc_usb_to_mac(pl); - if (!pl || !plfxlc_usb_dev(pl)) + if (!pl) return -ENODEV; if (pl->initialized == 0) return 0; @@ -837,7 +837,7 @@ static int resume(struct usb_interface *interface) { struct plfxlc_usb *pl = get_plfxlc_usb(interface); - if (!pl || !plfxlc_usb_dev(pl)) + if (!pl) return -ENODEV; if (pl->was_running) plfxlc_usb_resume(pl);