From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=192.198.163.19 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792939837; b=I+DQjLfhwpY/mNcNn5uaUnaJeWouy9rD4oZFwO2S0uQKTaHfmD6YA0vjemeNYuCuyHUe g81mNC99R28HfDQWCcaUb7dqnJ82lP8A8L2YWnp1S50wvVq2/HVevNLC+DtYmCGKjd9xn RKIOPPBEuQitNycragd2TerWbrKWT5Y78c3DdtDHUxiGkbkKP0GZdIeqU158185KiSLOa sCOna/WvUdIwbft/ot1Gk+TN+UNETIFa/3ewOKh325c3Fzctj40pI9rnYqwqK4TsBzJCD /bWMI7YVIPimFJq9R4ymMz7BvhLCkWhgvVu0PWnMJR8LyjajoFP3cVNMVtBGTFU85Vg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792939837; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:Date:From:To:Cc: Subject:Message-ID:References:MIME-Version:Content-Type: Content-Disposition:In-Reply-To:Organization; bh=6Pxhpwyug/cohEo6PD4X5ffzTblLzmuMS1iKA6wHYTY=; b=nhMd8gLwCg72eDC2qxCOJb00gpQQCrZKdc6jJj6lxduD4uRLT2QNXK9IKt/8eD+zeN2D 0n24yNrdOEI4UHN4U3DoExGkl8CHcSSl5Qq4OaZpMmHNJLtwRR+H1VvhPnnKSYwcB1x3E CT7pEl1mYXXGq9p2qOvCupRu+Cl0Sc8roykb5YAQ6eh36UJuwua67hjj4jX4s7tKR82+Y e9zsTeyL0hqqmYoRgChwWZzRLF3MQSR+8AlyGn3RHOOtKXhBMePb2T/JYxIOyBXfeohSG 2DD+iwyEUOYearZFng5PjiZtAITypDKlGM5GHI2WRX/sQtP5LPZNdu+157kb6Z8wmxw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=PshC8Di0; arc=none smtp.remote-ip=192.198.163.19 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E6434606A31B; Sun, 25 Oct 2026 14:50:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E6434606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=PshC8Di0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1792939836; x=1824475836; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=H4I93okhC8Zg01N6xJwsIKRDh9uxsIAKt5AaymrgcT4=; b=PshC8Di0VvoCJPT1LPZrWYHCax+1tWNXg4qka93dGdGFM084thK169kR tUpvUQOnhDQ4SYrazUarH4D2Fa11pglepfTL05qWsDkHwHoMDXL+pbCVk RI78SJMRKlEJRXWcVsnvEWeTQ3Jpep8i7LTpi/0SjO3mXVgKYjnu/avvG eN+7OU9gKE+khRVtmp1R1l4GdVVDkN+zmhKoG4CWQ9qzyhalkT+JvIpcR Lr5zDMDJQNJDphOMgc2W/Gvxgbub+ql88xDHBhe6x2OnfIMts0Rv2ANLa swPU4fe0XL/4s+nghzskjR9EGa0LKJdUE1nabLhHebvYCFu9OduATy6gK A==; X-CSE-ConnectionGUID: Zdxga9Z/Rri3zrgBnPED6A== X-CSE-MsgGUID: sUPakF10SnGFZIzWov87Qg== X-IronPort-AV: E=McAfee;i="6800,10657,11946"; a="1724549" X-IronPort-AV: E=Sophos;i="6.27,178,1787036400"; d="scan'208";a="1724549" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2026 07:50:35 -0700 X-CSE-ConnectionGUID: ZsO6uhFNQiSLWYBDVmp0rQ== X-CSE-MsgGUID: /noBoKB5Qp24wD3Z0bBbcg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,178,1787036400"; d="scan'208";a="4060247" Received: from hrotuna-mobl2.ger.corp.intel.com (HELO localhost) ([10.245.245.10]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2026 07:50:33 -0700 Date: Sun, 25 Oct 2026 16:50:30 +0200 From: Andy Shevchenko To: Abubakar Musa Samaila Cc: andy@kernel.org, gregkh@linuxfoundation.org, outreachy@lists.linux.dev, linux-staging@lists.linux.dev, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: staging: fbtft: fb_upd161704: Replace udelay() with usleep_range() Message-ID: References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Sat, Oct 24, 2026 at 04:32:11PM +0100, Abubakar Musa Samaila wrote: > Hi Andy and Greg, > > Please find attached the patch that replaces non-atomic udelay() > instances with appropriate usleep_range() bounds in > drivers/staging/fbtft/fb_upd161704.c. Please. study the respective mail archive on lore.kernel.org to understand why this patch is no-go. -- With Best Regards, Andy Shevchenko