kernel/linux.git/drivers/mtd/ubi/misc.c, branch v6.12.80

ubi: use correct names in function kernel-doc comments

2023-02-05T21:36:39+00:00

Fix kernel-doc warnings by using the correct function names in their kernel-doc notation: drivers/mtd/ubi/eba.c:72: warning: expecting prototype for next_sqnum(). Prototype was for ubi_next_sqnum() instead drivers/mtd/ubi/wl.c:176: warning: expecting prototype for wl_tree_destroy(). Prototype was for wl_entry_destroy() instead drivers/mtd/ubi/misc.c:24: warning: expecting prototype for calc_data_len(). Prototype was for ubi_calc_data_len() instead Signed-off-by: Randy Dunlap Cc: Richard Weinberger Cc: Miquel Raynal Cc: Vignesh Raghavendra Cc: linux-mtd@lists.infradead.org Signed-off-by: Richard Weinberger

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30T18:26:35+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman

mtd: ubi: Add logging functions ubi_msg, ubi_warn and ubi_err

2016-03-20T20:36:05+00:00

Using logging functions instead of macros can reduce overall object size. $ size drivers/mtd/ubi/built-in.o* text data bss dec hex filename 271620 163364 73696 508680 7c308 drivers/mtd/ubi/built-in.o.allyesconfig.new 287638 165380 73504 526522 808ba drivers/mtd/ubi/built-in.o.allyesconfig.old 87728 3780 504 92012 1676c drivers/mtd/ubi/built-in.o.defconfig.new 97084 3780 504 101368 18bf8 drivers/mtd/ubi/built-in.o.defconfig.old Signed-off-by: Joe Perches Signed-off-by: Richard Weinberger

UBI: fix soft lockup in ubi_check_volume()

2015-01-28T15:18:09+00:00

Running mtd-utils/tests/ubi-tests/io_basic.c could cause soft lockup or watchdog reset. It is because *updatevol* will perform ubi_check_volume() after updating finish and this function will full scan the updated lebs if the volume is initialized as STATIC_VOLUME. This patch adds *cond_resched()* in the loop of lebs scan to avoid soft lockup. Helped by Richard Weinberger [ 2158.067096] INFO: rcu_sched self-detected stall on CPU { 1} (t=2101 jiffies g=1606 c=1605 q=56) [ 2158.172867] CPU: 1 PID: 2073 Comm: io_basic Tainted: G O 3.10.53 #21 [ 2158.172898] [] (unwind_backtrace+0x0/0x120) from [] (show_stack+0x10/0x14) [ 2158.172918] [] (show_stack+0x10/0x14) from [] (rcu_check_callbacks+0x1c0/0x660) [ 2158.172936] [] (rcu_check_callbacks+0x1c0/0x660) from [] (update_process_times+0x38/0x64) [ 2158.172953] [] (update_process_times+0x38/0x64) from [] (tick_sched_handle+0x54/0x60) [ 2158.172966] [] (tick_sched_handle+0x54/0x60) from [] (tick_sched_timer+0x44/0x74) [ 2158.172978] [] (tick_sched_timer+0x44/0x74) from [] (__run_hrtimer+0xc8/0x1b8) [ 2158.172992] [] (__run_hrtimer+0xc8/0x1b8) from [] (hrtimer_interrupt+0x128/0x2a4) [ 2158.173007] [] (hrtimer_interrupt+0x128/0x2a4) from [] (arch_timer_handler_virt+0x28/0x30) [ 2158.173022] [] (arch_timer_handler_virt+0x28/0x30) from [] (handle_percpu_devid_irq+0x9c/0x124) [ 2158.173036] [] (handle_percpu_devid_irq+0x9c/0x124) from [] (generic_handle_irq+0x20/0x30) [ 2158.173049] [] (generic_handle_irq+0x20/0x30) from [] (handle_IRQ+0x64/0x8c) [ 2158.173060] [] (handle_IRQ+0x64/0x8c) from [] (gic_handle_irq+0x3c/0x60) [ 2158.173074] [] (gic_handle_irq+0x3c/0x60) from [] (__irq_svc+0x40/0x50) [ 2158.173083] Exception stack(0xc4043c98 to 0xc4043ce0) [ 2158.173092] 3c80: c4043ce4 00000019 [ 2158.173102] 3ca0: 1f8a865f c050ad10 1f8a864c 00000031 c04b5970 0003ebce 00000000 f3550000 [ 2158.173113] 3cc0: bf00bc68 00000800 0003ebce c4043ce0 c0186d14 c0186cb8 80000013 ffffffff [ 2158.173130] [] (__irq_svc+0x40/0x50) from [] (read_current_timer+0x4/0x38) [ 2158.173145] [] (read_current_timer+0x4/0x38) from [<1f8a865f>] (0x1f8a865f) [ 2183.927097] BUG: soft lockup - CPU#1 stuck for 22s! [io_basic:2073] [ 2184.002229] Modules linked in: nandflash(O) [last unloaded: nandflash] Signed-off-by: Wang Kai Signed-off-by: hujianyang Signed-off-by: Richard Weinberger

UBI: Extend UBI layer debug/messaging capabilities

2014-11-07T10:08:51+00:00

If there is more then one UBI device mounted, there is no way to distinguish between messages from different UBI devices. Add device number to all ubi layer message types. The R/O block driver messages were replaced by pr_* since ubi_device structure is not used by it. Amended a bit by Artem. Signed-off-by: Tanya Brokhman Signed-off-by: Artem Bityutskiy

UBI: comply with coding style

2012-09-04T06:39:01+00:00

Join all the split printk lines in order to stop checkpatch complaining. Signed-off-by: Artem Bityutskiy

UBI: limit amount of reserved eraseblocks for bad PEB handling

2012-09-04T06:38:58+00:00

The existing mechanism of reserving PEBs for bad PEB handling has two flaws: - It is calculated as a percentage of good PEBs instead of total PEBs. - There's no limit on the amount of PEBs UBI reserves for future bad eraseblock handling. This patch changes the mechanism to overcome these flaws. The desired level of PEBs reserved for bad PEB handling (beb_rsvd_level) is set to the maximum expected bad eraseblocks (bad_peb_limit) minus the existing number of bad eraseblocks (bad_peb_count). The actual amount of PEBs reserved for bad PEB handling is usually set to the desired level (but in some circumstances may be lower than the desired level, e.g. when attaching to a device that has too few available PEBs to satisfy the desired level). In the case where the device has too many bad PEBs (above the expected limit), then the desired level, and the actual amount of PEBs reserved are set to zero. No PEBs will be set aside for future bad eraseblock handling - even if some PEBs are made available (e.g. by shrinking a volume). If another PEB goes bad, and there are available PEBs, then the eraseblock will be marked bad (consuming one available PEB). But if there are no available PEBs, ubi will go into readonly mode. Signed-off-by: Shmulik Ladkani

UBI: harmonize the update of ubi->beb_rsvd_pebs

2012-07-18T11:30:34+00:00

Currently, there are several locations where an attempt to reserve more PEBs for bad PEB handling is made, with the same code being duplicated. Harmonize it by introducing 'ubi_update_reserved()'. Also, improve the debug message issued, making it more descriptive. Artem: amended the patch a little. Signed-off-by: Shmulik Ladkani Signed-off-by: Artem Bityutskiy

UBI: trivial: fix comment of ubi_calculate_reserved function

2012-07-18T10:33:03+00:00

The function name within the comment was not aligned with the actual function name. Signed-off-by: Shmulik Ladkani Signed-off-by: Artem Bityutskiy

mtd: utilize `mtd_is_*()' functions

2011-09-21T06:19:06+00:00

Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy