From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-vk1-f169.google.com (mail-vk1-f169.google.com [209.85.221.169]) (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 CF4DD261593 for ; Sun, 7 Dec 2025 15:59:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.169 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765123195; cv=none; b=rUJWCQfCTwR8xu/Ccr3sq+q+4ne0KtOQm8xteFU1SZVYq1nlt1yBR5NbtlkaPPtZR+IJqLoFM5XaCe6l44lB11r4sRCmrljSzu8JxX4QkTSqN9rcmRInpZuoa5lb3uijfh0U7ig4JGEUZyyKGvQb1QgdE+YUOHGUpJDD6NLByoE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765123195; c=relaxed/simple; bh=lN2nyMT5KURr5BnJaibgIHzRgf7UPdc+YsOVRYAzzEs=; h=Content-Type:Date:Message-Id:Cc:Subject:From:To:Mime-Version: References:In-Reply-To; b=s+8D6bY9IJU2z11S2Wjwgr82ypgU60haJYCAp/m9qUHXpVbAuP+19W7KsE8/YypIy33HYEeDDaVGOZL7xqmwvw/6IV4vDTGSCxcomEIGUXwEpn3eneKh/excOGWJxuvJ8x3v5EkPGz+2T8CY4C5b77VsiEX8cxNgYTPkmQhEptM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=B2wbkJtv; arc=none smtp.client-ip=209.85.221.169 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="B2wbkJtv" Received: by mail-vk1-f169.google.com with SMTP id 71dfb90a1353d-55b302b8369so2254713e0c.0 for ; Sun, 07 Dec 2025 07:59:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1765123193; x=1765727993; darn=vger.kernel.org; h=in-reply-to:references:content-transfer-encoding:mime-version:to :from:subject:cc:message-id:date:from:to:cc:subject:date:message-id :reply-to; bh=lN2nyMT5KURr5BnJaibgIHzRgf7UPdc+YsOVRYAzzEs=; b=B2wbkJtv5/I3xKcPY7+hZZjjt0igG9KmUzrYhQYhRG5wvmmGvvPv1OstvOxwOKfY0L X5F7Mmz4/5LZQWL5GenxEgxk4oiV/WBfalzObMOLx4aEYgZRv7YKBT9YNXrySbtY7SDE LW6O8XArIKe0jvRW0zapvYfI0SYNOMN39Iw8G1j3dGbWe/C5EO136fzSUOVxBjn4YE3L 0OHOi35jy0aS9idN5GXcOEaA4TLcrkPwypR2uU24MIsLf76oxheIi+xxi7lsJetOFjQd IqxtHVJ0m+FYzGWUxSrpNfRdcmparUXSeYHXCYxplPukyWfcNY9utthBdCKvQomW+fGN fHDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765123193; x=1765727993; h=in-reply-to:references:content-transfer-encoding:mime-version:to :from:subject:cc:message-id:date:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=lN2nyMT5KURr5BnJaibgIHzRgf7UPdc+YsOVRYAzzEs=; b=Y6Uk9yEYQ10AnPT6uE3TrlCWLq7UpNOdYoldx7ieR6M1CY7QrqVcSz/VOWDh2NHqPf mlP+Csb5hlhDYzsB9pn0PJAV/BG6IWW1nO2sT1iMAz5LSm/vy06BDa14IULTz6tGP9XR CZe2ZRkjI96QwhK7bbQMimI6JyUW7WmZrRdcnKGDQtma4eFIEdfboyJQfLhZA7ct2KTz 5Kaqfzyb5HFy/on5asq9SuJnCif/u/qj47T7Es9uAr+1X75PQidMJzoDa6nbk03jz3iF mOTHzW32zHpK4FQZYo4iiWs5CYnI4Ip4Gabozm8xsax3+UqQ1236vU6hqHIWfyEwmuuw lECA== X-Forwarded-Encrypted: i=1; AJvYcCU1dFM9/iK66P+WTXo4hg1lGyug3LL4ZObcrctJG/vxhh2JvkZbdvDRia2QLFWbbwD6dQNHNrPKUy/7pDQ=@vger.kernel.org X-Gm-Message-State: AOJu0Ywd/ephNnwGsSUmcG8GX4MXILj6UO2ywFAd9gtMZRM/ox1KFMaG l5RDS759lt0cRQS75lSedzb1u5pOaajoh4WvqNl86InkAE2rEx9VtLdg X-Gm-Gg: ASbGncutgDA67oF3MrJHsNBtDeLerOw2mM3mJ3B/hdYHozWnRhnZGP+PHEiTbX+uXQE jSk1q3OQk/WJydFvWN+Bk1BA+/jcGKwzHCPR8TKNPghk7xu1O42otkTeL2O8FCDaQf7GrQvmOeJ N1+bGHF/bam1wYdviMjAyhh60b65lpEfAgYHOW1/f2c153wl6q9qs/Eu3gUOOUHxCLXDgcgpGcL lhzOU29KIQJ5IyJSjcMYHUfuKFaH8QU9VyV7LXlRB0vBKURnGS47aL7K8ToHk0pU7unIAYsrlRj blrGYiawbza5nN/OokgSiDUGkdzw/jJBYwHJZuPwNucSxDml6PE4W6+ujS1AfIT4rUF7DdzJh6n bK6/N98L8pQhNbbeXe/HVfv44JdT5ftj+hUlAn5hz6MVnaWS0pj59A8Rmi8HPFZDh+oX1hZWiJx tcyyk= X-Google-Smtp-Source: AGHT+IHb5qCj47GPIJks5IrPfFovkp1AcVzoXUqVEm5uXUvz/i0JGsqz6kwhm3CHmygeESKzo+fSKw== X-Received: by 2002:a05:6122:330a:b0:554:b32c:6f76 with SMTP id 71dfb90a1353d-55e846e664dmr1336197e0c.15.1765123192735; Sun, 07 Dec 2025 07:59:52 -0800 (PST) Received: from localhost ([2800:bf0:82:3d2:875c:6c76:e06b:3095]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-55e6c568ae2sm4895821e0c.5.2025.12.07.07.59.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 07 Dec 2025 07:59:52 -0800 (PST) Content-Type: text/plain; charset=UTF-8 Date: Sun, 07 Dec 2025 10:59:50 -0500 Message-Id: Cc: "Andy Shevchenko" , "Lars-Peter Clausen" , "Michael Hennerich" , "Benson Leung" , "Antoniu Miclaus" , "Gwendal Grignou" , "Shrikant Raskar" , "Per-Daniel Olsson" , "David Lechner" , =?utf-8?q?Nuno_S=C3=A1?= , "Andy Shevchenko" , "Guenter Roeck" , "Jonathan Cameron" , , , Subject: Re: [PATCH RFC 3/6] iio: core: Add cleanup.h support for iio_device_claim_*() From: "Kurt Borja" To: "Jonathan Cameron" , "Kurt Borja" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20251203-lock-impr-v1-0-b4a1fd639423@gmail.com> <20251203-lock-impr-v1-3-b4a1fd639423@gmail.com> <20251206182057.40402e66@jic23-huawei> In-Reply-To: <20251206182057.40402e66@jic23-huawei> On Sat Dec 6, 2025 at 1:20 PM -05, Jonathan Cameron wrote: > On Wed, 03 Dec 2025 14:18:17 -0500 > Kurt Borja wrote: > >> Add guard() and ACQUIRE() support for iio_device_claim_*() lock. >>=20 >> This involves exporting iio_device_{claim, release}() wrappers to define >> a general GUARD class, and then defining the _direct and _buffer >> conditional ones. >>=20 >> Suggested-by: Andy Shevchenko >> Signed-off-by: Kurt Borja > > I'd like some documentation (alongside the DEFINE_GUARD() stuff) > - particularly warn people that using the non conditional variant > is very much the unusual one. > > Perhaps add examples of usage for the other two and ignore that one > on basis alarm bells will ring whenever we see it in code. Sure! I'll add it. > > Jonathan --=20 ~ Kurt