From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C18381DFFC; Tue, 3 Sep 2024 16:11:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725379871; cv=none; b=Jlt6EOZ548mNGpIcNJ/na0aJGGv336kj0tOkBxHDuEulHKimgXuskygB/U4hYvYfvOIq4cXA6ZP4JfikNcRmraK8PutuWTb2sUQDZ8pnnOEJ5r1mWfgZOPUhbhpB6lw/ejF9KCpmxYSgWTKkzMDC2WyFZf69n7NBaRtqDNxo/wo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725379871; c=relaxed/simple; bh=23UJof+bw4z17P2EuEFVPPtXB7zf9hg2doA/jFPekec=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MrYSD1Us8Ex44vEjlWIhwCTPxUOdLVHhCUTiYvVpHpI/SsKY9SoqwvVrp0/2BH3QRsQskRHyZ/ioQiBypBTVxldUBdwIA/ahv0OykFU15iZCS6/BZ/qNMOp6L46Xzpw1nof1JHIZzjhbzmT1ReT+I7NBb1X0FNYNVbGTAK1IE4Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=kJAUHpzR; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="kJAUHpzR" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1725379870; x=1756915870; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=23UJof+bw4z17P2EuEFVPPtXB7zf9hg2doA/jFPekec=; b=kJAUHpzRVWRyQRpTnMRKlK7y1728IP5prMIjHHNKHtUcohHYrdDJDedP KQb0le2OxaMdTexDb0Nqv4gE/1pIoVdIXwfc2p3Uo+7Ti6nm2/jLp4c5I /mwPt4pD7fqf+UlMzMwuqCRo7gP4jhERwGK3azUiY2q8WtI/sutSJwMAH 1+dVPQQ3vh8UoYs2J/jy+ji13T+pzT0lMvIPLUX0cCkhHtbY9ZqQQA+JY MWm6xS0ukzK9Zv0tJsY8WYx17fuAoyqtYtW43K19hz/d+3/74wWyLEGxQ 01+2HROE5h3Kb2Yd0dZ7MYMUwzM3bgRNQ5MzyZSOjbiBzawZ0UFWDZAvZ w==; X-CSE-ConnectionGUID: z+Mi9ddLRHm1uhoDtGjyZg== X-CSE-MsgGUID: kFtuT8ZOTAGAP1gFM0/MFA== X-IronPort-AV: E=McAfee;i="6700,10204,11184"; a="35147602" X-IronPort-AV: E=Sophos;i="6.10,199,1719903600"; d="scan'208";a="35147602" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2024 09:11:09 -0700 X-CSE-ConnectionGUID: iiiYSyOkTkSWL/6RgAW03w== X-CSE-MsgGUID: xmCnEEbvQOKNkRB36feE1Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,199,1719903600"; d="scan'208";a="69585899" Received: from smile.fi.intel.com ([10.237.72.54]) by fmviesa004.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2024 09:11:06 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98) (envelope-from ) id 1slW6l-00000004lR0-24Yh; Tue, 03 Sep 2024 19:10:19 +0300 Date: Tue, 3 Sep 2024 19:10:05 +0300 From: Andy Shevchenko To: Ye Zhang Cc: linus.walleij@linaro.org, brgl@bgdev.pl, heiko@sntech.de, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, mika.westerberg@linux.intel.com, tao.huang@rock-chips.com, finley.xiao@rock-chips.com, tim.chen@rock-chips.com, elaine.zhang@rock-chips.com Subject: Re: [PATCH v3 12/12] gpio: rockchip: replace mutex_lock() with guard() Message-ID: References: <20240903073649.237362-1-ye.zhang@rock-chips.com> <20240903073649.237362-13-ye.zhang@rock-chips.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240903073649.237362-13-ye.zhang@rock-chips.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo On Tue, Sep 03, 2024 at 03:36:49PM +0800, Ye Zhang wrote: > Replacing mutex_lock with guard() simplifies the code and helps avoid mutex_lock() avoiding > deadlocks. ... > --- a/drivers/gpio/gpio-rockchip.c > +++ b/drivers/gpio/gpio-rockchip.c + cleanup.h ... > } > - mutex_lock(&bank->deferred_lock); > + guard(mutex)(&bank->deferred_lock); Make it surrounded by blank lines. > + ret = rockchip_get_bank_data(bank); > + if (ret) > + goto err_disabled_clk; -- With Best Regards, Andy Shevchenko