From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 E565E3D5259 for ; Wed, 25 Feb 2026 16:17:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772036232; cv=none; b=M5Gg/97TRB3HNfNpxK+6to10kPncp9dVC9UwlXPfC/YYu9LxpSobaG3mL65WemCNMJb7EYAL6TpteP4KBURNTwOGjEFia9Wfvn7tl7yN+rTyr8hvwwHr9s04xVTBGvqXt5YB30BOBqQHG0KDu3D7XiFk9FFftM9V2xOSxn9YmCY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772036232; c=relaxed/simple; bh=H0wvEMusid9NfjMR9UoGpO0J6QmNST1faBlU+zgyt+U=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ZhvftPUPF2R7oV23PcldM0eoJdruTGxUtjksCiuwqxvhEWCQu1oPMUhezKXSwpAHgVrERbcfARUKpvYUlKh2yYAzrn+opUIgnlC7geZCYfFfPu58gf61lbUwwyBB0p2QN42d4PUx/gomm/7inqgMluVM/JPOklujZmanFa2egv4= 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=YqH6xJrC; arc=none smtp.client-ip=198.175.65.20 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="YqH6xJrC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772036229; x=1803572229; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=H0wvEMusid9NfjMR9UoGpO0J6QmNST1faBlU+zgyt+U=; b=YqH6xJrCvBCv5Ng2bkIQO7V++g0W3EHUDupQArca6ruX4et3hlup3q/v H0GqogxKSSGmXPvIyCFc+ZJuvDG1KyKRppdXYCQ8c40H4Xk447509IB/R kmREO5A7FDwxfDsVAgfKejw0SKuHrnQsEdsEnaK5Tuft+Dli5SHEDdxEw S2MUB7rn6NdnLbzevXNRRHP9P8BWJdG81BJ1i8O8jNPsDOjcOGTDlp1AP tp+7UFjjHvocTkgiu0OfIKNpFZ1yR0xUtt5xcEZtdZEEMEBpqH14IpeqD s9FHsh1YBeM1nBG4DfK4waU7DRfdO5lY8OVHw1zJ/lYzIeVFiz9rvQhcL w==; X-CSE-ConnectionGUID: jnzNfPVIQ3GLA7/Q1wGTBQ== X-CSE-MsgGUID: 7HvbUvNWTyOtx5CmT6VNBg== X-IronPort-AV: E=McAfee;i="6800,10657,11712"; a="72783307" X-IronPort-AV: E=Sophos;i="6.21,310,1763452800"; d="scan'208";a="72783307" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Feb 2026 08:17:03 -0800 X-CSE-ConnectionGUID: rAgEjlyJQ6SdofrHqo8MGg== X-CSE-MsgGUID: gwKiOhCBQkmQLdB1ROCV4w== X-ExtLoop1: 1 Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa003.fm.intel.com with ESMTP; 25 Feb 2026 08:17:02 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id B597898; Wed, 25 Feb 2026 17:17:00 +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 v2 0/5] regcache: Avoid accessing non-initialised cache Date: Wed, 25 Feb 2026 17:15:54 +0100 Message-ID: <20260225161659.3811671-1-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 v2: - rebased on top of the latest regmap changes (Mark) - added two more little cleanups (patches 4 & 5) Andy Shevchenko (5): regcache: Remove duplicate check in regcache_hw_init() regcache: Split regcache_count_cacheable_registers() helper 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 | 57 ++++++++++++++++++---------------- 2 files changed, 32 insertions(+), 27 deletions(-) -- 2.50.1