From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 5D6443AE6F6 for ; Thu, 26 Feb 2026 13:59:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772114374; cv=none; b=lp8CaMmymtEb/ZWb8NYV2SZ9VTm9x2aGvSirgkEc8gLX9ZVGSQU0o4W/fu8yMGwtQhWnN2tTj1kXoochl0t9/sTIQUVFXngWLVLgVjjXPzI3ABKGmW2yB2Ukv8Pho6ZTWNCyTj0YpguIWg00sBNl3HECv8k+IbbsQSE4/X7I5oY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772114374; c=relaxed/simple; bh=F8wlxy0JgsOLaXjVoU3j2t2ouYerwxqyx10gGe5nDYY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=fErHBOkUlQBsHhP9TKjzVcMTwJRsmWgs0Xq6+pQfYcRaliOrE1UCebzPvs53Y1W8Zf3QD4uwC2lL0PPoCmz0JNlM3+wXRHZcFobnozU6xJ0B0HRhfFbpJiBpE8LYOc0WLiMEfEJ2KyA4wtAUyrq7JqASYZge7Py1U4tdi4gxOX8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=n6w5ojo2; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass 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="n6w5ojo2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772114370; x=1803650370; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=F8wlxy0JgsOLaXjVoU3j2t2ouYerwxqyx10gGe5nDYY=; b=n6w5ojo21ow8igaDp7ep2Uy/MJP/bLFZ0qY79gF8RsDOddpw3f62MlBs KghCbVVOUj9b5UkK/+pO733c3RawlOSP/TQG7hVcvX3o6Qp+uVVkmhwwX g7jh/1D9upLz8TDHynOiZGBIK+mlQcZCSdFmL7SUsoBQjZiYXBndRVDGH 6ohvT+vjEdkqpkoEQWhXjTsivjQn+gaTeuywPqnUjJI42kboDDAot6ESD a6FrxMVZbgcZ6kMka43WkEnyT72LjqAbd3KQBvMsdA6KAhmhMC4Ef2J66 K6POoyuLJzDOfm8Acur1iYWovkayCZ61Ysuq+8Cn6Ar9dHd/5ovqat5VI w==; X-CSE-ConnectionGUID: Ip2EZ8NzQqC8Z5LYFmiXhg== X-CSE-MsgGUID: 8fsNA9o9Qb+cEPP1zOZRAA== X-IronPort-AV: E=McAfee;i="6800,10657,11713"; a="73044507" X-IronPort-AV: E=Sophos;i="6.21,312,1763452800"; d="scan'208";a="73044507" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Feb 2026 05:59:23 -0800 X-CSE-ConnectionGUID: oYpoMrX6Rwe+nbjwTDhbow== X-CSE-MsgGUID: MP8Tbw+HSwWhyKyEeNv2+w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,312,1763452800"; d="scan'208";a="214549630" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa010.fm.intel.com with ESMTP; 26 Feb 2026 05:59:21 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id CC34098; Thu, 26 Feb 2026 14:59:19 +0100 (CET) From: Andy Shevchenko To: Mark Brown , Andy Shevchenko , linux-kernel@vger.kernel.org, driver-core@lists.linux.dev Cc: Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich Subject: [PATCH v3 0/3] regcache: Avoid accessing non-initialised cache Date: Thu, 26 Feb 2026 14:57:08 +0100 Message-ID: <20260226135918.381979-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Refactor regcache flow that populates cache on initialisation phase based on the values in HW. This makes code robust against any possible accesses to not-fully initialised caches. Changelog v3: - dropped unneeded churn in patch 3 (Mark) - fixed code to pass kunit test cases (Mark) v2: 20260225161659.3811671-1-andriy.shevchenko@linux.intel.com Changelog v2: - rebased on top of the latest regmap changes (Mark) - added two more little cleanups (patches 4 & 5) Andy Shevchenko (3): regcache: Move HW readback after cache initialisation regcache: Define iterator inside for-loop and align their types regcache: Amend printf() specifiers when printing registers drivers/base/regmap/internal.h | 2 +- drivers/base/regmap/regcache.c | 42 ++++++++++++++++++++-------------- 2 files changed, 26 insertions(+), 18 deletions(-) -- 2.50.1