From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f180.google.com (mail-yw1-f180.google.com [209.85.128.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CAF931C27; Sat, 14 Oct 2023 07:39:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="F7PKl/SB" Received: by mail-yw1-f180.google.com with SMTP id 00721157ae682-5a7d532da4bso35722907b3.2; Sat, 14 Oct 2023 00:39:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1697269183; x=1697873983; darn=lists.linux.dev; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=O3pfyKY5IaoFuTuLVntmNnqtU1SUqO73JEN0YvBTiXE=; b=F7PKl/SBjw98+fFCm/3JrUtLbk50gj5MjAivgGXXkbh5LOZdu+5FKke03rcKoo5V5b CUesKZUrL8BC2jfe0YAByCP6T8z5hwwZjddb6AKNutIMJg5Xaun0PbjLBi2tz/9dsHTy LLIk7yy8PkU9afu1XCqZVJgQ/V4YUTM3nepJjcQ7gQGRyAvU3WsRKC+w2/0wTK/yArcs XpuSk/dgj8RS0l985vhhKC7PxHEaMtdvCS7++tiKbKCuCz2yhSiINdbPIc4b4fB1nTYa kLQglojbjT1fM4In1Y32nyZlTMj6wdhTxF6kvWrAE67COIzkGvGqV7Zkf3jrPhkadUYh n4AA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697269183; x=1697873983; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=O3pfyKY5IaoFuTuLVntmNnqtU1SUqO73JEN0YvBTiXE=; b=XunowIjRCBUdw0HJ1kFaNbXr49wzFrlCO+NaM/d6uYMJpDpYJW6YfEpO9JzFXThE1w B2mi9RyNJ6GR7zmQEa/RBzzSBZGBIp2ik3GhBYm1B+lsxYU+JrHJ1i4qOzEYANc3ed/L X0e2SH2EjgOheBihWLoucVjwv4M+EN3PUXVsCWGY5CdrGRnpkS55VbCBVdkd7ynvSUJr jO40lKD+fATDq57UI6y+xAYKavtvhizKOGOcRH53eghCzRvkz5SXLYTgGhwYWJPeHcje dHcSKCwtuOVCrDrTm1R7stcP2F1vSOhBkUP7GWjriLPrGLiNfGaUX7pSROPQvdrmuhDG qrZw== X-Gm-Message-State: AOJu0YwmEnRmLPYdrOVAbknkRlIMIynGqsU70FQMHZwY6BFI9QHFreo6 SFuhKMYADplE9j9gVihkyTM= X-Google-Smtp-Source: AGHT+IFLBBfUUgNr6LViOF1jpi5Iia8QBECN3q2/onj7OgNd1yfaPOAeXkVgoQpt6phF2TPyemePTw== X-Received: by 2002:a81:a546:0:b0:592:5def:5c0d with SMTP id v6-20020a81a546000000b005925def5c0dmr31356836ywg.45.1697269183527; Sat, 14 Oct 2023 00:39:43 -0700 (PDT) Received: from gilbert-PC ([105.112.18.68]) by smtp.gmail.com with ESMTPSA id w3-20020a818603000000b0059c8387f673sm394202ywf.51.2023.10.14.00.39.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Oct 2023 00:39:41 -0700 (PDT) Date: Sat, 14 Oct 2023 08:39:34 +0100 From: Gilbert Adikankwu To: Julia Lawall Cc: outreachy@lists.linux.dev, manishc@marvell.com, GR-Linux-NIC-Dev@marvell.com, coiby.xu@gmail.com, gregkh@linuxfoundation.org, netdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] staging: qlge: Add bool type to qlge_idc_wait() Message-ID: References: Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Sat, Oct 14, 2023 at 08:23:13AM +0200, Julia Lawall wrote: > > > On Sat, 14 Oct 2023, Gilbert Adikankwu wrote: > > > Reported by checkpatch: > > > > WARNING: else is not generally useful after a break or return > > > > The idea of the break statements in the if/else is so that the loop is > > exited immediately the value of status is changed. And returned > > immediately. For if/else conditionals, the block to be executed will > > always be one of the two. Introduce a bool type variable 's_sig' that > > evaluates to true when the value of status is changed within the if/else > > block. > > The idea of the checkpatch warning is that eg > > found = search(); > if (!found) > break; > else do_something(); > > is equvalent to: > > found = search(); > if (!found) > break; > do_something(); > > Because now the normal computation is at top level and the if branches are > only used for error handling. > > But that is not the case in your code. In your code, it seems that there > are two cases where one would like to break out of the loop. The code > would be better left as it is. > > julia Thank you for the quick review. I thought about it the you described but then realised the else was not redundant that was why I went the route of trying to suppress the warning. I will revert the changes as you have suggested Gilbert > > > > > Signed-off-by: Gilbert Adikankwu > > --- > > drivers/staging/qlge/qlge.h | 1 + > > drivers/staging/qlge/qlge_mpi.c | 8 ++++++-- > > 2 files changed, 7 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/staging/qlge/qlge.h b/drivers/staging/qlge/qlge.h > > index d0dd659834ee..b846bca82571 100644 > > --- a/drivers/staging/qlge/qlge.h > > +++ b/drivers/staging/qlge/qlge.h > > @@ -11,6 +11,7 @@ > > #include > > #include > > #include > > +#include > > > > /* > > * General definitions... > > diff --git a/drivers/staging/qlge/qlge_mpi.c b/drivers/staging/qlge/qlge_mpi.c > > index 96a4de6d2b34..44cb879240a0 100644 > > --- a/drivers/staging/qlge/qlge_mpi.c > > +++ b/drivers/staging/qlge/qlge_mpi.c > > @@ -909,6 +909,7 @@ int qlge_mb_wol_set_magic(struct qlge_adapter *qdev, u32 enable_wol) > > static int qlge_idc_wait(struct qlge_adapter *qdev) > > { > > int status = -ETIMEDOUT; > > + bool s_sig = false; > > struct mbox_params *mbcp = &qdev->idc_mbc; > > long wait_time; > > > > @@ -934,14 +935,17 @@ static int qlge_idc_wait(struct qlge_adapter *qdev) > > } else if (mbcp->mbox_out[0] == AEN_IDC_CMPLT) { > > netif_err(qdev, drv, qdev->ndev, "IDC Success.\n"); > > status = 0; > > - break; > > + s_sig = true; > > } else { > > netif_err(qdev, drv, qdev->ndev, > > "IDC: Invalid State 0x%.04x.\n", > > mbcp->mbox_out[0]); > > status = -EIO; > > - break; > > + s_sig = true; > > } > > + > > + if (s_sig) > > + break; > > } > > > > return status; > > -- > > 2.34.1 > > > > > >