From patchwork Wed Mar 10 13:24:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397392 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D617CC43603 for ; Wed, 10 Mar 2021 13:26:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0ACE64FDC for ; Wed, 10 Mar 2021 13:26:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232091AbhCJNZp (ORCPT ); Wed, 10 Mar 2021 08:25:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:46646 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230341AbhCJNZG (ORCPT ); Wed, 10 Mar 2021 08:25:06 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8D5EC64FF3; Wed, 10 Mar 2021 13:25:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382705; bh=RVbWkd5wmIFp6TpqM+zM9VZdZVT/rO/PtHbttAA3IR4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FEMKDTqfc+1fwQN7ZISA6WI1F9UgWgxulljyDvDenlifnHhEF7/n3EFJh8HE1crbu tM084EcAC9oHSkyEiMTVUQMA+oZAtOKcXlHxhTgRGvD4RpoIyAiKEL2WtAepPZCDKc MBrKE0/S8RDICSEtZdEfwTNGYUZPSsWwUsCehiAo= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ira Weiny , David Sterba Subject: [PATCH 4.14 02/20] btrfs: fix raid6 qstripe kmap Date: Wed, 10 Mar 2021 14:24:39 +0100 Message-Id: <20210310132320.590212468@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Ira Weiny commit d70cef0d46729808dc53f145372c02b145c92604 upstream. When a qstripe is required an extra page is allocated and mapped. There were 3 problems: 1) There is no corresponding call of kunmap() for the qstripe page. 2) There is no reason to map the qstripe page more than once if the number of bits set in rbio->dbitmap is greater than one. 3) There is no reason to map the parity page and unmap it each time through the loop. The page memory can continue to be reused with a single mapping on each iteration by raid6_call.gen_syndrome() without remapping. So map the page for the duration of the loop. Similarly, improve the algorithm by mapping the parity page just 1 time. Fixes: 5a6ac9eacb49 ("Btrfs, raid56: support parity scrub on raid56") CC: stable@vger.kernel.org # 4.4.x: c17af96554a8: btrfs: raid56: simplify tracking of Q stripe presence CC: stable@vger.kernel.org # 4.4.x Signed-off-by: Ira Weiny Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/raid56.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -2360,16 +2360,21 @@ static noinline void finish_parity_scrub SetPageUptodate(p_page); if (has_qstripe) { + /* RAID6, allocate and map temp space for the Q stripe */ q_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM); if (!q_page) { __free_page(p_page); goto cleanup; } SetPageUptodate(q_page); + pointers[rbio->real_stripes - 1] = kmap(q_page); } atomic_set(&rbio->error, 0); + /* Map the parity stripe just once */ + pointers[nr_data] = kmap(p_page); + for_each_set_bit(pagenr, rbio->dbitmap, rbio->stripe_npages) { struct page *p; void *parity; @@ -2379,16 +2384,8 @@ static noinline void finish_parity_scrub pointers[stripe] = kmap(p); } - /* then add the parity stripe */ - pointers[stripe++] = kmap(p_page); - if (has_qstripe) { - /* - * raid6, add the qstripe and call the - * library function to fill in our p/q - */ - pointers[stripe++] = kmap(q_page); - + /* RAID6, call the library function to fill in our P/Q */ raid6_call.gen_syndrome(rbio->real_stripes, PAGE_SIZE, pointers); } else { @@ -2409,12 +2406,14 @@ static noinline void finish_parity_scrub for (stripe = 0; stripe < nr_data; stripe++) kunmap(page_in_rbio(rbio, stripe, pagenr, 0)); - kunmap(p_page); } + kunmap(p_page); __free_page(p_page); - if (q_page) + if (q_page) { + kunmap(q_page); __free_page(q_page); + } writeback: /* From patchwork Wed Mar 10 13:24:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397391 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCE1AC432C3 for ; Wed, 10 Mar 2021 13:26:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C15964FF3 for ; Wed, 10 Mar 2021 13:26:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233291AbhCJNZp (ORCPT ); Wed, 10 Mar 2021 08:25:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:46690 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233227AbhCJNZH (ORCPT ); Wed, 10 Mar 2021 08:25:07 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id F2AD464FD8; Wed, 10 Mar 2021 13:25:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382707; bh=8O5WTqJe4DAwwRP33UWo+XAsbxy43DK2gxOzBEpyR74=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i9g6TfCGBHOTedRMCXcAUNaMO3cyDleht/9wVd+vFKM6d2zsHqhI/8EwKSFOhdfvf 9jD8L8XFijkc6BA428enAF5S/8M3qRULyQJDXGqfKZ29uMTyaB3+yZNCRpLAoKnYfM a4Oqg1Ms3b3sou+r4l0jk9GmEnd/A4ixpiCdvyb0= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Elaine Zhang , "Rafael J. Wysocki" , Elaine Zhang , Ulf Hansson Subject: [PATCH 4.14 03/20] PM: runtime: Update device status before letting suppliers suspend Date: Wed, 10 Mar 2021 14:24:40 +0100 Message-Id: <20210310132320.624261268@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Rafael J. Wysocki commit 44cc89f764646b2f1f2ea5d1a08b230131707851 upstream. Because the PM-runtime status of the device is not updated in __rpm_callback(), attempts to suspend the suppliers of the given device triggered by rpm_put_suppliers() called by it may fail. Fix this by making __rpm_callback() update the device's status to RPM_SUSPENDED before calling rpm_put_suppliers() if the current status of the device is RPM_SUSPENDING and the callback just invoked by it has returned 0 (success). While at it, modify the code in __rpm_callback() to always check the device's PM-runtime status under its PM lock. Link: https://lore.kernel.org/linux-pm/CAPDyKFqm06KDw_p8WXsM4dijDbho4bb6T4k50UqqvR1_COsp8g@mail.gmail.com/ Fixes: 21d5c57b3726 ("PM / runtime: Use device links") Reported-by: Elaine Zhang Diagnosed-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki Tested-by: Elaine Zhang Reviewed-by: Ulf Hansson Cc: 4.10+ # 4.10+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/runtime.c | 62 +++++++++++++++++++++++++------------------ 1 file changed, 37 insertions(+), 25 deletions(-) --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -306,22 +306,22 @@ static void rpm_put_suppliers(struct dev static int __rpm_callback(int (*cb)(struct device *), struct device *dev) __releases(&dev->power.lock) __acquires(&dev->power.lock) { - int retval, idx; bool use_links = dev->power.links_count > 0; + bool get = false; + int retval, idx; + bool put; if (dev->power.irq_safe) { spin_unlock(&dev->power.lock); + } else if (!use_links) { + spin_unlock_irq(&dev->power.lock); } else { + get = dev->power.runtime_status == RPM_RESUMING; + spin_unlock_irq(&dev->power.lock); - /* - * Resume suppliers if necessary. - * - * The device's runtime PM status cannot change until this - * routine returns, so it is safe to read the status outside of - * the lock. - */ - if (use_links && dev->power.runtime_status == RPM_RESUMING) { + /* Resume suppliers if necessary. */ + if (get) { idx = device_links_read_lock(); retval = rpm_get_suppliers(dev); @@ -336,24 +336,36 @@ static int __rpm_callback(int (*cb)(stru if (dev->power.irq_safe) { spin_lock(&dev->power.lock); - } else { - /* - * If the device is suspending and the callback has returned - * success, drop the usage counters of the suppliers that have - * been reference counted on its resume. - * - * Do that if resume fails too. - */ - if (use_links - && ((dev->power.runtime_status == RPM_SUSPENDING && !retval) - || (dev->power.runtime_status == RPM_RESUMING && retval))) { - idx = device_links_read_lock(); + return retval; + } - fail: - rpm_put_suppliers(dev); + spin_lock_irq(&dev->power.lock); - device_links_read_unlock(idx); - } + if (!use_links) + return retval; + + /* + * If the device is suspending and the callback has returned success, + * drop the usage counters of the suppliers that have been reference + * counted on its resume. + * + * Do that if the resume fails too. + */ + put = dev->power.runtime_status == RPM_SUSPENDING && !retval; + if (put) + __update_runtime_status(dev, RPM_SUSPENDED); + else + put = get && retval; + + if (put) { + spin_unlock_irq(&dev->power.lock); + + idx = device_links_read_lock(); + +fail: + rpm_put_suppliers(dev); + + device_links_read_unlock(idx); spin_lock_irq(&dev->power.lock); } From patchwork Wed Mar 10 13:24:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397356 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EA93C15513 for ; Wed, 10 Mar 2021 13:26:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EAFC564FE0 for ; Wed, 10 Mar 2021 13:26:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233563AbhCJNZy (ORCPT ); Wed, 10 Mar 2021 08:25:54 -0500 Received: from mail.kernel.org ([198.145.29.99]:47208 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233086AbhCJNZN (ORCPT ); Wed, 10 Mar 2021 08:25:13 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 857D96501D; Wed, 10 Mar 2021 13:25:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382713; bh=w637EcO8plBxuxkJG91Qy1ahjBGYniXYp5LmhN+ZEQM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OB6fUAlSDyKEg2iF9s5BHPKC1yOag4177wJU9WoRmu1TrIwjSmcd2hQHACJr/917p ThHQyx29eNN0qKj8S+Kc90KFJoJAP6tzf2DMQOQC1mLNYqy0/R/kzZQKSlrgOJ9lpj rtiLu1e+1pTjsNn7v7UfAavzVoRPx4OdCdtIcM4A= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jeffle Xu , Mike Snitzer Subject: [PATCH 4.14 07/20] dm table: fix iterate_devices based device capability checks Date: Wed, 10 Mar 2021 14:24:44 +0100 Message-Id: <20210310132320.752841786@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Jeffle Xu commit a4c8dd9c2d0987cf542a2a0c42684c9c6d78a04e upstream. According to the definition of dm_iterate_devices_fn: * This function must iterate through each section of device used by the * target until it encounters a non-zero return code, which it then returns. * Returns zero if no callout returned non-zero. For some target type (e.g. dm-stripe), one call of iterate_devices() may iterate multiple underlying devices internally, in which case a non-zero return code returned by iterate_devices_callout_fn will stop the iteration in advance. No iterate_devices_callout_fn should return non-zero unless device iteration should stop. Rename dm_table_requires_stable_pages() to dm_table_any_dev_attr() and elevate it for reuse to stop iterating (and return non-zero) on the first device that causes iterate_devices_callout_fn to return non-zero. Use dm_table_any_dev_attr() to properly iterate through devices. Rename device_is_nonrot() to device_is_rotational() and invert logic accordingly to fix improper disposition. [jeffle: backport notes] Also convert the no_sg_merge capability check, which is introduced by commit 200612ec33e5 ("dm table: propagate QUEUE_FLAG_NO_SG_MERGE"), and removed since commit 2705c93742e9 ("block: kill QUEUE_FLAG_NO_SG_MERGE") in v5.1. Fixes: c3c4555edd10 ("dm table: clear add_random unless all devices have it set") Fixes: 4693c9668fdc ("dm table: propagate non rotational flag") Cc: stable@vger.kernel.org Signed-off-by: Jeffle Xu Signed-off-by: Mike Snitzer Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-table.c | 109 ++++++++++++++++++++++++++------------------------ 1 file changed, 57 insertions(+), 52 deletions(-) --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1351,6 +1351,46 @@ struct dm_target *dm_table_find_target(s return &t->targets[(KEYS_PER_NODE * n) + k]; } +/* + * type->iterate_devices() should be called when the sanity check needs to + * iterate and check all underlying data devices. iterate_devices() will + * iterate all underlying data devices until it encounters a non-zero return + * code, returned by whether the input iterate_devices_callout_fn, or + * iterate_devices() itself internally. + * + * For some target type (e.g. dm-stripe), one call of iterate_devices() may + * iterate multiple underlying devices internally, in which case a non-zero + * return code returned by iterate_devices_callout_fn will stop the iteration + * in advance. + * + * Cases requiring _any_ underlying device supporting some kind of attribute, + * should use the iteration structure like dm_table_any_dev_attr(), or call + * it directly. @func should handle semantics of positive examples, e.g. + * capable of something. + * + * Cases requiring _all_ underlying devices supporting some kind of attribute, + * should use the iteration structure like dm_table_supports_nowait() or + * dm_table_supports_discards(). Or introduce dm_table_all_devs_attr() that + * uses an @anti_func that handle semantics of counter examples, e.g. not + * capable of something. So: return !dm_table_any_dev_attr(t, anti_func); + */ +static bool dm_table_any_dev_attr(struct dm_table *t, + iterate_devices_callout_fn func) +{ + struct dm_target *ti; + unsigned int i; + + for (i = 0; i < dm_table_get_num_targets(t); i++) { + ti = dm_table_get_target(t, i); + + if (ti->type->iterate_devices && + ti->type->iterate_devices(ti, func, NULL)) + return true; + } + + return false; +} + static int count_device(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { @@ -1667,12 +1707,12 @@ static int dm_table_supports_dax_write_c return false; } -static int device_is_nonrot(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) +static int device_is_rotational(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) { struct request_queue *q = bdev_get_queue(dev->bdev); - return q && blk_queue_nonrot(q); + return q && !blk_queue_nonrot(q); } static int device_is_not_random(struct dm_target *ti, struct dm_dev *dev, @@ -1683,29 +1723,12 @@ static int device_is_not_random(struct d return q && !blk_queue_add_random(q); } -static int queue_supports_sg_merge(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) +static int queue_no_sg_merge(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) { struct request_queue *q = bdev_get_queue(dev->bdev); - return q && !test_bit(QUEUE_FLAG_NO_SG_MERGE, &q->queue_flags); -} - -static bool dm_table_all_devices_attribute(struct dm_table *t, - iterate_devices_callout_fn func) -{ - struct dm_target *ti; - unsigned i; - - for (i = 0; i < dm_table_get_num_targets(t); i++) { - ti = dm_table_get_target(t, i); - - if (!ti->type->iterate_devices || - !ti->type->iterate_devices(ti, func, NULL)) - return false; - } - - return true; + return q && test_bit(QUEUE_FLAG_NO_SG_MERGE, &q->queue_flags); } static int device_not_write_same_capable(struct dm_target *ti, struct dm_dev *dev, @@ -1804,27 +1827,6 @@ static int device_requires_stable_pages( return q && bdi_cap_stable_pages_required(q->backing_dev_info); } -/* - * If any underlying device requires stable pages, a table must require - * them as well. Only targets that support iterate_devices are considered: - * don't want error, zero, etc to require stable pages. - */ -static bool dm_table_requires_stable_pages(struct dm_table *t) -{ - struct dm_target *ti; - unsigned i; - - for (i = 0; i < dm_table_get_num_targets(t); i++) { - ti = dm_table_get_target(t, i); - - if (ti->type->iterate_devices && - ti->type->iterate_devices(ti, device_requires_stable_pages, NULL)) - return true; - } - - return false; -} - void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, struct queue_limits *limits) { @@ -1856,28 +1858,31 @@ void dm_table_set_restrictions(struct dm dax_write_cache(t->md->dax_dev, true); /* Ensure that all underlying devices are non-rotational. */ - if (dm_table_all_devices_attribute(t, device_is_nonrot)) - queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q); - else + if (dm_table_any_dev_attr(t, device_is_rotational)) queue_flag_clear_unlocked(QUEUE_FLAG_NONROT, q); + else + queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q); if (!dm_table_supports_write_same(t)) q->limits.max_write_same_sectors = 0; if (!dm_table_supports_write_zeroes(t)) q->limits.max_write_zeroes_sectors = 0; - if (dm_table_all_devices_attribute(t, queue_supports_sg_merge)) - queue_flag_clear_unlocked(QUEUE_FLAG_NO_SG_MERGE, q); - else + if (dm_table_any_dev_attr(t, queue_no_sg_merge)) queue_flag_set_unlocked(QUEUE_FLAG_NO_SG_MERGE, q); + else + queue_flag_clear_unlocked(QUEUE_FLAG_NO_SG_MERGE, q); dm_table_verify_integrity(t); /* * Some devices don't use blk_integrity but still want stable pages * because they do their own checksumming. + * If any underlying device requires stable pages, a table must require + * them as well. Only targets that support iterate_devices are considered: + * don't want error, zero, etc to require stable pages. */ - if (dm_table_requires_stable_pages(t)) + if (dm_table_any_dev_attr(t, device_requires_stable_pages)) q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES; else q->backing_dev_info->capabilities &= ~BDI_CAP_STABLE_WRITES; @@ -1888,7 +1893,7 @@ void dm_table_set_restrictions(struct dm * Clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not * have it set. */ - if (blk_queue_add_random(q) && dm_table_all_devices_attribute(t, device_is_not_random)) + if (blk_queue_add_random(q) && dm_table_any_dev_attr(t, device_is_not_random)) queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q); /* From patchwork Wed Mar 10 13:24:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397365 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E49BBC4332E for ; Wed, 10 Mar 2021 13:26:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BFAD464FF7 for ; Wed, 10 Mar 2021 13:26:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233618AbhCJNZ7 (ORCPT ); Wed, 10 Mar 2021 08:25:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:47566 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233278AbhCJNZQ (ORCPT ); Wed, 10 Mar 2021 08:25:16 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4A9FB64FFD; Wed, 10 Mar 2021 13:25:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382716; bh=bzIv8TnIEfkpzFtHkU9fFj/0LADJvVXU/TIRsmONQPs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eKeVMLT9SADMEpolzhy4pNWMGU/P4JmMynGJdhpgL+soX8s3pMWouajZmBZltGOMn PwoREhLim8/NkQo6PlfO9t5pvhLZhbPTWh4USS+ZXvGwvBFjPmy0EHH+oW3bdW+D8z B6qzgGkhnMOrobFaKXIc+wgdUURamv1d7G18VLO0= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jeffle Xu , Mike Snitzer Subject: [PATCH 4.14 09/20] dm table: fix zoned iterate_devices based device capability checks Date: Wed, 10 Mar 2021 14:24:46 +0100 Message-Id: <20210310132320.826074753@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Jeffle Xu commit 24f6b6036c9eec21191646930ad42808e6180510 upstream. Fix dm_table_supports_zoned_model() and invert logic of both iterate_devices_callout_fn so that all devices' zoned capabilities are properly checked. Add one more parameter to dm_table_any_dev_attr(), which is actually used as the @data parameter of iterate_devices_callout_fn, so that dm_table_matches_zone_sectors() can be replaced by dm_table_any_dev_attr(). Fixes: dd88d313bef02 ("dm table: add zoned block devices validation") Cc: stable@vger.kernel.org Signed-off-by: Jeffle Xu Signed-off-by: Mike Snitzer [jeffle: also convert no_sg_merge check] Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-table.c | 50 +++++++++++++++++--------------------------------- 1 file changed, 17 insertions(+), 33 deletions(-) --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1372,10 +1372,10 @@ struct dm_target *dm_table_find_target(s * should use the iteration structure like dm_table_supports_nowait() or * dm_table_supports_discards(). Or introduce dm_table_all_devs_attr() that * uses an @anti_func that handle semantics of counter examples, e.g. not - * capable of something. So: return !dm_table_any_dev_attr(t, anti_func); + * capable of something. So: return !dm_table_any_dev_attr(t, anti_func, data); */ static bool dm_table_any_dev_attr(struct dm_table *t, - iterate_devices_callout_fn func) + iterate_devices_callout_fn func, void *data) { struct dm_target *ti; unsigned int i; @@ -1384,7 +1384,7 @@ static bool dm_table_any_dev_attr(struct ti = dm_table_get_target(t, i); if (ti->type->iterate_devices && - ti->type->iterate_devices(ti, func, NULL)) + ti->type->iterate_devices(ti, func, data)) return true; } @@ -1427,13 +1427,13 @@ bool dm_table_has_no_data_devices(struct return true; } -static int device_is_zoned_model(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) +static int device_not_zoned_model(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) { struct request_queue *q = bdev_get_queue(dev->bdev); enum blk_zoned_model *zoned_model = data; - return q && blk_queue_zoned_model(q) == *zoned_model; + return !q || blk_queue_zoned_model(q) != *zoned_model; } static bool dm_table_supports_zoned_model(struct dm_table *t, @@ -1450,37 +1450,20 @@ static bool dm_table_supports_zoned_mode return false; if (!ti->type->iterate_devices || - !ti->type->iterate_devices(ti, device_is_zoned_model, &zoned_model)) + ti->type->iterate_devices(ti, device_not_zoned_model, &zoned_model)) return false; } return true; } -static int device_matches_zone_sectors(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) +static int device_not_matches_zone_sectors(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) { struct request_queue *q = bdev_get_queue(dev->bdev); unsigned int *zone_sectors = data; - return q && blk_queue_zone_sectors(q) == *zone_sectors; -} - -static bool dm_table_matches_zone_sectors(struct dm_table *t, - unsigned int zone_sectors) -{ - struct dm_target *ti; - unsigned i; - - for (i = 0; i < dm_table_get_num_targets(t); i++) { - ti = dm_table_get_target(t, i); - - if (!ti->type->iterate_devices || - !ti->type->iterate_devices(ti, device_matches_zone_sectors, &zone_sectors)) - return false; - } - - return true; + return !q || blk_queue_zone_sectors(q) != *zone_sectors; } static int validate_hardware_zoned_model(struct dm_table *table, @@ -1500,7 +1483,7 @@ static int validate_hardware_zoned_model if (!zone_sectors || !is_power_of_2(zone_sectors)) return -EINVAL; - if (!dm_table_matches_zone_sectors(table, zone_sectors)) { + if (dm_table_any_dev_attr(table, device_not_matches_zone_sectors, &zone_sectors)) { DMERR("%s: zone sectors is not consistent across all devices", dm_device_name(table->md)); return -EINVAL; @@ -1837,11 +1820,11 @@ void dm_table_set_restrictions(struct dm else queue_flag_clear_unlocked(QUEUE_FLAG_DAX, q); - if (dm_table_any_dev_attr(t, device_dax_write_cache_enabled)) + if (dm_table_any_dev_attr(t, device_dax_write_cache_enabled, NULL)) dax_write_cache(t->md->dax_dev, true); /* Ensure that all underlying devices are non-rotational. */ - if (dm_table_any_dev_attr(t, device_is_rotational)) + if (dm_table_any_dev_attr(t, device_is_rotational, NULL)) queue_flag_clear_unlocked(QUEUE_FLAG_NONROT, q); else queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q); @@ -1851,7 +1834,7 @@ void dm_table_set_restrictions(struct dm if (!dm_table_supports_write_zeroes(t)) q->limits.max_write_zeroes_sectors = 0; - if (dm_table_any_dev_attr(t, queue_no_sg_merge)) + if (dm_table_any_dev_attr(t, queue_no_sg_merge, NULL)) queue_flag_set_unlocked(QUEUE_FLAG_NO_SG_MERGE, q); else queue_flag_clear_unlocked(QUEUE_FLAG_NO_SG_MERGE, q); @@ -1865,7 +1848,7 @@ void dm_table_set_restrictions(struct dm * them as well. Only targets that support iterate_devices are considered: * don't want error, zero, etc to require stable pages. */ - if (dm_table_any_dev_attr(t, device_requires_stable_pages)) + if (dm_table_any_dev_attr(t, device_requires_stable_pages, NULL)) q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES; else q->backing_dev_info->capabilities &= ~BDI_CAP_STABLE_WRITES; @@ -1876,7 +1859,8 @@ void dm_table_set_restrictions(struct dm * Clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not * have it set. */ - if (blk_queue_add_random(q) && dm_table_any_dev_attr(t, device_is_not_random)) + if (blk_queue_add_random(q) && + dm_table_any_dev_attr(t, device_is_not_random, NULL)) queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q); /* From patchwork Wed Mar 10 13:24:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397366 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C2A1C46461 for ; Wed, 10 Mar 2021 13:26:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F087564FEE for ; Wed, 10 Mar 2021 13:26:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233648AbhCJN0B (ORCPT ); Wed, 10 Mar 2021 08:26:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:47208 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233290AbhCJNZS (ORCPT ); Wed, 10 Mar 2021 08:25:18 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A712A6500D; Wed, 10 Mar 2021 13:25:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382717; bh=kPVsOsqn4Q67G1MB9BxuDrFmpty10DB+O2p4M/qV4Po=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B5rCW3glORsDpHAWtNba1buzIvXNnINUu1zLY9x9nsPwGCz5UX+kL+HEKKs55EnIo esohTDLVZauTwM6gfCofGdvgk3z9WJY76OnH9EFHfutPq8fgUlhuevgmQbprE13sPb 0vSa9EJYsPG86vmCXJu9ciHIuCFVgnm9pXq9Irbs= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrey Ryabinin , Will Deacon , Joerg Roedel Subject: [PATCH 4.14 10/20] iommu/amd: Fix sleeping in atomic in increase_address_space() Date: Wed, 10 Mar 2021 14:24:47 +0100 Message-Id: <20210310132320.855798204@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Andrey Ryabinin commit 140456f994195b568ecd7fc2287a34eadffef3ca upstream. increase_address_space() calls get_zeroed_page(gfp) under spin_lock with disabled interrupts. gfp flags passed to increase_address_space() may allow sleeping, so it comes to this: BUG: sleeping function called from invalid context at mm/page_alloc.c:4342 in_atomic(): 1, irqs_disabled(): 1, pid: 21555, name: epdcbbf1qnhbsd8 Call Trace: dump_stack+0x66/0x8b ___might_sleep+0xec/0x110 __alloc_pages_nodemask+0x104/0x300 get_zeroed_page+0x15/0x40 iommu_map_page+0xdd/0x3e0 amd_iommu_map+0x50/0x70 iommu_map+0x106/0x220 vfio_iommu_type1_ioctl+0x76e/0x950 [vfio_iommu_type1] do_vfs_ioctl+0xa3/0x6f0 ksys_ioctl+0x66/0x70 __x64_sys_ioctl+0x16/0x20 do_syscall_64+0x4e/0x100 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fix this by moving get_zeroed_page() out of spin_lock/unlock section. Fixes: 754265bcab ("iommu/amd: Fix race in increase_address_space()") Signed-off-by: Andrey Ryabinin Acked-by: Will Deacon Cc: Link: https://lore.kernel.org/r/20210217143004.19165-1-arbn@yandex-team.com Signed-off-by: Joerg Roedel Signed-off-by: Andrey Ryabinin Signed-off-by: Greg Kroah-Hartman --- drivers/iommu/amd_iommu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1347,24 +1347,26 @@ static void increase_address_space(struc unsigned long flags; u64 *pte; + pte = (void *)get_zeroed_page(gfp); + if (!pte) + return; + spin_lock_irqsave(&domain->lock, flags); if (WARN_ON_ONCE(domain->mode == PAGE_MODE_6_LEVEL)) /* address space already 64 bit large */ goto out; - pte = (void *)get_zeroed_page(gfp); - if (!pte) - goto out; - *pte = PM_LEVEL_PDE(domain->mode, iommu_virt_to_phys(domain->pt_root)); domain->pt_root = pte; domain->mode += 1; domain->updated = true; + pte = NULL; out: spin_unlock_irqrestore(&domain->lock, flags); + free_page((unsigned long)pte); return; } From patchwork Wed Mar 10 13:24:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397332 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A218C15520 for ; Wed, 10 Mar 2021 13:26:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DEBEC64FDA for ; Wed, 10 Mar 2021 13:26:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232979AbhCJN00 (ORCPT ); Wed, 10 Mar 2021 08:26:26 -0500 Received: from mail.kernel.org ([198.145.29.99]:46706 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233338AbhCJNZY (ORCPT ); Wed, 10 Mar 2021 08:25:24 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7058965093; Wed, 10 Mar 2021 13:25:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382722; bh=7f6XdJJ1Zynu2jUey9mfRLbPvQ68aAgy++Bhz9RJ0Jk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mHAy0jtJ+dp284tC4GPCrCpoD3AS0RXld8UXw/Uyp5Q+usqXUimzp+/OzeIQeCU8f nNkuBT9rJay+ZgEmjBTqzRpLIbLDhZZ4ms8lEbc7P9PYp9xaYbfsmtD8R08wuuSGQ5 qrbA+gQkTET+RLmqxlJr9WTjFHv9vT40SWvGw4lo= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andy Shevchenko , Hans de Goede , Sasha Levin Subject: [PATCH 4.14 13/20] platform/x86: acer-wmi: Cleanup accelerometer device handling Date: Wed, 10 Mar 2021 14:24:50 +0100 Message-Id: <20210310132320.952294233@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Hans de Goede [ Upstream commit 9feb0763e4985ccfae632de3bb2f029cc8389842 ] Cleanup accelerometer device handling: -Drop acer_wmi_accel_destroy instead directly call input_unregister_device. -The information tracked by the CAP_ACCEL flag mirrors acer_wmi_accel_dev being NULL. Drop the CAP flag, this is a preparation change for allowing users to override the capability flags. Dropping the flag stops users from causing a NULL pointer dereference by forcing the capability. Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20201019185628.264473-3-hdegoede@redhat.com Signed-off-by: Sasha Levin --- drivers/platform/x86/acer-wmi.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 41311c1526a0..445e9c17f4a8 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -223,7 +223,6 @@ struct hotkey_function_type_aa { #define ACER_CAP_BLUETOOTH BIT(2) #define ACER_CAP_BRIGHTNESS BIT(3) #define ACER_CAP_THREEG BIT(4) -#define ACER_CAP_ACCEL BIT(5) /* * Interface type flags @@ -1528,7 +1527,7 @@ static int acer_gsensor_event(void) struct acpi_buffer output; union acpi_object out_obj[5]; - if (!has_cap(ACER_CAP_ACCEL)) + if (!acer_wmi_accel_dev) return -1; output.length = sizeof(out_obj); @@ -1937,8 +1936,6 @@ static int __init acer_wmi_accel_setup(void) if (err) return err; - interface->capability |= ACER_CAP_ACCEL; - acer_wmi_accel_dev = input_allocate_device(); if (!acer_wmi_accel_dev) return -ENOMEM; @@ -1964,11 +1961,6 @@ err_free_dev: return err; } -static void acer_wmi_accel_destroy(void) -{ - input_unregister_device(acer_wmi_accel_dev); -} - static int __init acer_wmi_input_setup(void) { acpi_status status; @@ -2123,7 +2115,7 @@ static int acer_resume(struct device *dev) if (has_cap(ACER_CAP_BRIGHTNESS)) set_u32(data->brightness, ACER_CAP_BRIGHTNESS); - if (has_cap(ACER_CAP_ACCEL)) + if (acer_wmi_accel_dev) acer_gsensor_init(); return 0; @@ -2331,8 +2323,8 @@ error_device_alloc: error_platform_register: if (wmi_has_guid(ACERWMID_EVENT_GUID)) acer_wmi_input_destroy(); - if (has_cap(ACER_CAP_ACCEL)) - acer_wmi_accel_destroy(); + if (acer_wmi_accel_dev) + input_unregister_device(acer_wmi_accel_dev); return err; } @@ -2342,8 +2334,8 @@ static void __exit acer_wmi_exit(void) if (wmi_has_guid(ACERWMID_EVENT_GUID)) acer_wmi_input_destroy(); - if (has_cap(ACER_CAP_ACCEL)) - acer_wmi_accel_destroy(); + if (acer_wmi_accel_dev) + input_unregister_device(acer_wmi_accel_dev); remove_debugfs(); platform_device_unregister(acer_platform_device); From patchwork Wed Mar 10 13:24:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397337 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B913C4646C for ; Wed, 10 Mar 2021 13:26:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1FE64650D7 for ; Wed, 10 Mar 2021 13:26:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233691AbhCJN03 (ORCPT ); Wed, 10 Mar 2021 08:26:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:47144 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233358AbhCJNZ1 (ORCPT ); Wed, 10 Mar 2021 08:25:27 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2EA8964FF7; Wed, 10 Mar 2021 13:25:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382724; bh=cAih5GYfviR8m/d2j0N2R4Rx2Rbe2ATpARlomwBUkBg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ek+YWNn5yPnxk6Lapg2nyRYYpqisXX0JfZHOCRQDyVp+Yc3DiUeq2/qHZWsqcivgP HPY6py2YPqJTuXhWfQ6lAo2CezTotuahJ3MmA608Ui7tY0NAfwRrZAIVZ/lW9QlbhZ NIy7HDKkZlahNcOeMRtIVRLuWkbmYNMYM79xnIKk= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andy Shevchenko , Hans de Goede , Sasha Levin Subject: [PATCH 4.14 14/20] platform/x86: acer-wmi: Add new force_caps module parameter Date: Wed, 10 Mar 2021 14:24:51 +0100 Message-Id: <20210310132320.981686947@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Hans de Goede [ Upstream commit 39aa009bb66f9d5fbd1e58ca4aa03d6e6f2c9915 ] Add a new force_caps module parameter to allow overriding the drivers builtin capability detection mechanism. This can be used to for example: -Disable rfkill functionality on devices where there is an AA OEM DMI record advertising non functional rfkill switches -Force loading of the driver on devices with a missing AA OEM DMI record Note that force_caps is -1 when unset, this allows forcing the capability field to 0, which results in acer-wmi only providing WMI hotkey handling while disabling all other (led, rfkill, backlight) functionality. Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20201019185628.264473-4-hdegoede@redhat.com Signed-off-by: Sasha Levin --- drivers/platform/x86/acer-wmi.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 445e9c17f4a8..12aa174a865f 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -245,6 +245,7 @@ static int mailled = -1; static int brightness = -1; static int threeg = -1; static int force_series; +static int force_caps = -1; static bool ec_raw_mode; static bool has_type_aa; static u16 commun_func_bitmap; @@ -254,11 +255,13 @@ module_param(mailled, int, 0444); module_param(brightness, int, 0444); module_param(threeg, int, 0444); module_param(force_series, int, 0444); +module_param(force_caps, int, 0444); module_param(ec_raw_mode, bool, 0444); MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); MODULE_PARM_DESC(force_series, "Force a different laptop series"); +MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value"); MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode"); struct acer_data { @@ -2230,7 +2233,7 @@ static int __init acer_wmi_init(void) } /* WMID always provides brightness methods */ interface->capability |= ACER_CAP_BRIGHTNESS; - } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) { + } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) { pr_err("No WMID device detection method found\n"); return -ENODEV; } @@ -2260,6 +2263,9 @@ static int __init acer_wmi_init(void) if (acpi_video_get_backlight_type() != acpi_backlight_vendor) interface->capability &= ~ACER_CAP_BRIGHTNESS; + if (force_caps != -1) + interface->capability = force_caps; + if (wmi_has_guid(WMID_GUID3)) { if (ACPI_FAILURE(acer_wmi_enable_rf_button())) pr_warn("Cannot enable RF Button Driver\n"); From patchwork Wed Mar 10 13:24:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397334 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C77CC4321A for ; Wed, 10 Mar 2021 13:26:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2DA9465007 for ; Wed, 10 Mar 2021 13:26:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233824AbhCJN0O (ORCPT ); Wed, 10 Mar 2021 08:26:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:46746 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233366AbhCJNZ2 (ORCPT ); Wed, 10 Mar 2021 08:25:28 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C20D765015; Wed, 10 Mar 2021 13:25:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382726; bh=FmHN8MCoMBNyPQv8vIXrMudtKn2O6qqBGE43AJrfrT0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kekL5jf6MdGPtbCKWWymcv77PPf1mdNPUdRjBJZTDg9SN+ga9fN6NtytH1EII2b7E q/pZMRLPmaG2+gfC8RO5q+z01j1ETJktCyPceIYPp3YP5E01Dlp3jH2pxTE4Y8/6py 8N09SD3bZZ4wrNm1lpsv6uJEzpi+Te1UDQhuP+4Q= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andy Shevchenko , Hans de Goede , Sasha Levin Subject: [PATCH 4.14 15/20] platform/x86: acer-wmi: Add ACER_CAP_SET_FUNCTION_MODE capability flag Date: Wed, 10 Mar 2021 14:24:52 +0100 Message-Id: <20210310132321.011047943@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Hans de Goede [ Upstream commit 82cb8a5c395ea5be20e0fe31a8fe84380a502ca5 ] Not all devices supporting WMID_GUID3 support the wmid3_set_function_mode() call, leading to errors like these: [ 60.138358] acer_wmi: Enabling RF Button failed: 0x1 - 0xff [ 60.140036] acer_wmi: Enabling Launch Manager failed: 0x1 - 0xff Add an ACER_CAP_SET_FUNCTION_MODE capability flag, so that these calls can be disabled through the new force_caps mechanism. Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20201019185628.264473-5-hdegoede@redhat.com Signed-off-by: Sasha Levin --- drivers/platform/x86/acer-wmi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 12aa174a865f..729d0277e100 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -223,6 +223,7 @@ struct hotkey_function_type_aa { #define ACER_CAP_BLUETOOTH BIT(2) #define ACER_CAP_BRIGHTNESS BIT(3) #define ACER_CAP_THREEG BIT(4) +#define ACER_CAP_SET_FUNCTION_MODE BIT(5) /* * Interface type flags @@ -2263,10 +2264,14 @@ static int __init acer_wmi_init(void) if (acpi_video_get_backlight_type() != acpi_backlight_vendor) interface->capability &= ~ACER_CAP_BRIGHTNESS; + if (wmi_has_guid(WMID_GUID3)) + interface->capability |= ACER_CAP_SET_FUNCTION_MODE; + if (force_caps != -1) interface->capability = force_caps; - if (wmi_has_guid(WMID_GUID3)) { + if (wmi_has_guid(WMID_GUID3) && + (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) { if (ACPI_FAILURE(acer_wmi_enable_rf_button())) pr_warn("Cannot enable RF Button Driver\n"); From patchwork Wed Mar 10 13:24:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397333 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40DBFC1551F for ; Wed, 10 Mar 2021 13:26:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 315FC65007 for ; Wed, 10 Mar 2021 13:26:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233683AbhCJN02 (ORCPT ); Wed, 10 Mar 2021 08:26:28 -0500 Received: from mail.kernel.org ([198.145.29.99]:47144 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233407AbhCJNZf (ORCPT ); Wed, 10 Mar 2021 08:25:35 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 309386500E; Wed, 10 Mar 2021 13:25:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382729; bh=ylE91ePWbk+YE2Zl7TQe9rREs+wvW6bT/meHPnTI64o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NqTffRVBH2jjs0EaqA7pPcC2vSafubsHQikHRvvPrAsYzQXQj/2ZE0HqFhop/2L9M lBCt+YlHC+hpZRVZ/xzc0LKU1k8FdhrcRVP0grJDDbhXCymix/gVymsIhTua7fWg79 87e5MvrX9HkBS4deC8ocQFypEN9h8rRbFQorCq2Q= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hans de Goede , Sasha Levin Subject: [PATCH 4.14 17/20] platform/x86: acer-wmi: Add ACER_CAP_KBD_DOCK quirk for the Aspire Switch 10E SW3-016 Date: Wed, 10 Mar 2021 14:24:54 +0100 Message-Id: <20210310132321.071466998@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Hans de Goede [ Upstream commit bf753400280d1384abb783efc0b42c491d6deec3 ] Add the Acer Aspire Switch 10E SW3-016 to the list of models which use the Acer Switch WMI interface for reporting SW_TABLET_MODE. Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20201123151625.5530-1-hdegoede@redhat.com Signed-off-by: Sasha Levin --- drivers/platform/x86/acer-wmi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 52ae8bb38813..5ddc359135a8 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -524,6 +524,15 @@ static const struct dmi_system_id acer_quirks[] __initconst = { }, .driver_data = &quirk_acer_travelmate_2490, }, + { + .callback = set_force_caps, + .ident = "Acer Aspire Switch 10E SW3-016", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"), + }, + .driver_data = (void *)ACER_CAP_KBD_DOCK, + }, { .callback = set_force_caps, .ident = "Acer Aspire Switch 10 SW5-012", From patchwork Wed Mar 10 13:24:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 397344 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99D7BC15516 for ; Wed, 10 Mar 2021 13:26:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4544A64FEE for ; Wed, 10 Mar 2021 13:26:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233027AbhCJN0W (ORCPT ); Wed, 10 Mar 2021 08:26:22 -0500 Received: from mail.kernel.org ([198.145.29.99]:48034 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233406AbhCJNZf (ORCPT ); Wed, 10 Mar 2021 08:25:35 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 39ED36500D; Wed, 10 Mar 2021 13:25:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382732; bh=N22cbig8t+Kn3IYf1hcYc864LB/Gb8FXtHKig0zmB3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WjZhr4w55LY96EewVyNk1X36Ma52694KgBC/JjMqesdBpqeFmNo3TR9rAVNk7X90W jEGH+LvPKYYKW1+Idu7Lr2bIDWYgfthGMhswgpcwkULx4xqJwGtKdWNPRT3nyvdpm5 t93dqEAI3eRUaqCFEVltIZfTYCwHFyP8IuS8nvWg= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Aswath Govindraju , Sasha Levin Subject: [PATCH 4.14 19/20] misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom Date: Wed, 10 Mar 2021 14:24:56 +0100 Message-Id: <20210310132321.129632974@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132320.512307035@linuxfoundation.org> References: <20210310132320.512307035@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Aswath Govindraju [ Upstream commit f6f1f8e6e3eea25f539105d48166e91f0ab46dd1 ] A dummy zero bit is sent preceding the data during a read transfer by the Microchip 93LC46B eeprom (section 2.7 of[1]). This results in right shift of data during a read. In order to ignore this bit a quirk can be added to send an extra zero bit after the read address. Add a quirk to ignore the zero bit sent before data by adding a zero bit after the read address. [1] - https://www.mouser.com/datasheet/2/268/20001749K-277859.pdf Signed-off-by: Aswath Govindraju Link: https://lore.kernel.org/r/20210105105817.17644-3-a-govindraju@ti.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/misc/eeprom/eeprom_93xx46.c | 15 +++++++++++++++ include/linux/eeprom_93xx46.h | 2 ++ 2 files changed, 17 insertions(+) diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index a3248ebd28c6..182feab6da25 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -38,6 +38,10 @@ static const struct eeprom_93xx46_devtype_data atmel_at93c46d_data = { EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH, }; +static const struct eeprom_93xx46_devtype_data microchip_93lc46b_data = { + .quirks = EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE, +}; + struct eeprom_93xx46_dev { struct spi_device *spi; struct eeprom_93xx46_platform_data *pdata; @@ -58,6 +62,11 @@ static inline bool has_quirk_instruction_length(struct eeprom_93xx46_dev *edev) return edev->pdata->quirks & EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH; } +static inline bool has_quirk_extra_read_cycle(struct eeprom_93xx46_dev *edev) +{ + return edev->pdata->quirks & EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE; +} + static int eeprom_93xx46_read(void *priv, unsigned int off, void *val, size_t count) { @@ -99,6 +108,11 @@ static int eeprom_93xx46_read(void *priv, unsigned int off, dev_dbg(&edev->spi->dev, "read cmd 0x%x, %d Hz\n", cmd_addr, edev->spi->max_speed_hz); + if (has_quirk_extra_read_cycle(edev)) { + cmd_addr <<= 1; + bits += 1; + } + spi_message_init(&m); t[0].tx_buf = (char *)&cmd_addr; @@ -366,6 +380,7 @@ static void select_deassert(void *context) static const struct of_device_id eeprom_93xx46_of_table[] = { { .compatible = "eeprom-93xx46", }, { .compatible = "atmel,at93c46d", .data = &atmel_at93c46d_data, }, + { .compatible = "microchip,93lc46b", .data = µchip_93lc46b_data, }, {} }; MODULE_DEVICE_TABLE(of, eeprom_93xx46_of_table); diff --git a/include/linux/eeprom_93xx46.h b/include/linux/eeprom_93xx46.h index eec7928ff8fe..99580c22f91a 100644 --- a/include/linux/eeprom_93xx46.h +++ b/include/linux/eeprom_93xx46.h @@ -16,6 +16,8 @@ struct eeprom_93xx46_platform_data { #define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0) /* Instructions such as EWEN are (addrlen + 2) in length. */ #define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1) +/* Add extra cycle after address during a read */ +#define EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE BIT(2) /* * optional hooks to control additional logic