From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- fs/ubifs/debug.h | 305 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 305 insertions(+) create mode 100644 fs/ubifs/debug.h (limited to 'fs/ubifs/debug.h') diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h new file mode 100644 index 000000000..d425861e6 --- /dev/null +++ b/fs/ubifs/debug.h @@ -0,0 +1,305 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * This file is part of UBIFS. + * + * Copyright (C) 2006-2008 Nokia Corporation. + * + * Authors: Artem Bityutskiy (Битюцкий Артём) + * Adrian Hunter + */ + +#ifndef __UBIFS_DEBUG_H__ +#define __UBIFS_DEBUG_H__ + +/* Checking helper functions */ +typedef int (*dbg_leaf_callback)(struct ubifs_info *c, + struct ubifs_zbranch *zbr, void *priv); +typedef int (*dbg_znode_callback)(struct ubifs_info *c, + struct ubifs_znode *znode, void *priv); + +/* + * The UBIFS debugfs directory name pattern and maximum name length (3 for "ubi" + * + 1 for "_" and 2 for UBI device numbers and 3 for volume number and 1 for + * the trailing zero byte. + */ +#define UBIFS_DFS_DIR_NAME "ubi%d_%d" +#define UBIFS_DFS_DIR_LEN (3 + 1 + 2 + 3 + 1) + +/** + * ubifs_debug_info - per-FS debugging information. + * @old_zroot: old index root - used by 'dbg_check_old_index()' + * @old_zroot_level: old index root level - used by 'dbg_check_old_index()' + * @old_zroot_sqnum: old index root sqnum - used by 'dbg_check_old_index()' + * + * @pc_happened: non-zero if an emulated power cut happened + * @pc_delay: 0=>don't delay, 1=>delay a time, 2=>delay a number of calls + * @pc_timeout: time in jiffies when delay of failure mode expires + * @pc_cnt: current number of calls to failure mode I/O functions + * @pc_cnt_max: number of calls by which to delay failure mode + * + * @chk_lpt_sz: used by LPT tree size checker + * @chk_lpt_sz2: used by LPT tree size checker + * @chk_lpt_wastage: used by LPT tree size checker + * @chk_lpt_lebs: used by LPT tree size checker + * @new_nhead_offs: used by LPT tree size checker + * @new_ihead_lnum: used by debugging to check @c->ihead_lnum + * @new_ihead_offs: used by debugging to check @c->ihead_offs + * + * @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()') + * @saved_bi: saved budgeting information + * @saved_free: saved amount of free space + * @saved_idx_gc_cnt: saved value of @c->idx_gc_cnt + * + * @chk_gen: if general extra checks are enabled + * @chk_index: if index xtra checks are enabled + * @chk_orph: if orphans extra checks are enabled + * @chk_lprops: if lprops extra checks are enabled + * @chk_fs: if UBIFS contents extra checks are enabled + * @tst_rcvry: if UBIFS recovery testing mode enabled + * + * @dfs_dir_name: name of debugfs directory containing this file-system's files + * @dfs_dir: direntry object of the file-system debugfs directory + * @dfs_dump_lprops: "dump lprops" debugfs knob + * @dfs_dump_budg: "dump budgeting information" debugfs knob + * @dfs_dump_tnc: "dump TNC" debugfs knob + * @dfs_chk_gen: debugfs knob to enable UBIFS general extra checks + * @dfs_chk_index: debugfs knob to enable UBIFS index extra checks + * @dfs_chk_orph: debugfs knob to enable UBIFS orphans extra checks + * @dfs_chk_lprops: debugfs knob to enable UBIFS LEP properties extra checks + * @dfs_chk_fs: debugfs knob to enable UBIFS contents extra checks + * @dfs_tst_rcvry: debugfs knob to enable UBIFS recovery testing + * @dfs_ro_error: debugfs knob to switch UBIFS to R/O mode (different to + * re-mounting to R/O mode because it does not flush any buffers + * and UBIFS just starts returning -EROFS on all write + * operations) + */ +struct ubifs_debug_info { + struct ubifs_zbranch old_zroot; + int old_zroot_level; + unsigned long long old_zroot_sqnum; + + int pc_happened; + int pc_delay; + unsigned long pc_timeout; + unsigned int pc_cnt; + unsigned int pc_cnt_max; + + long long chk_lpt_sz; + long long chk_lpt_sz2; + long long chk_lpt_wastage; + int chk_lpt_lebs; + int new_nhead_offs; + int new_ihead_lnum; + int new_ihead_offs; + + struct ubifs_lp_stats saved_lst; + struct ubifs_budg_info saved_bi; + long long saved_free; + int saved_idx_gc_cnt; + + unsigned int chk_gen:1; + unsigned int chk_index:1; + unsigned int chk_orph:1; + unsigned int chk_lprops:1; + unsigned int chk_fs:1; + unsigned int tst_rcvry:1; + + char dfs_dir_name[UBIFS_DFS_DIR_LEN]; + struct dentry *dfs_dir; + struct dentry *dfs_dump_lprops; + struct dentry *dfs_dump_budg; + struct dentry *dfs_dump_tnc; + struct dentry *dfs_chk_gen; + struct dentry *dfs_chk_index; + struct dentry *dfs_chk_orph; + struct dentry *dfs_chk_lprops; + struct dentry *dfs_chk_fs; + struct dentry *dfs_tst_rcvry; + struct dentry *dfs_ro_error; +}; + +/** + * ubifs_global_debug_info - global (not per-FS) UBIFS debugging information. + * + * @chk_gen: if general extra checks are enabled + * @chk_index: if index xtra checks are enabled + * @chk_orph: if orphans extra checks are enabled + * @chk_lprops: if lprops extra checks are enabled + * @chk_fs: if UBIFS contents extra checks are enabled + * @tst_rcvry: if UBIFS recovery testing mode enabled + */ +struct ubifs_global_debug_info { + unsigned int chk_gen:1; + unsigned int chk_index:1; + unsigned int chk_orph:1; + unsigned int chk_lprops:1; + unsigned int chk_fs:1; + unsigned int tst_rcvry:1; +}; + +void ubifs_assert_failed(struct ubifs_info *c, const char *expr, + const char *file, int line); + +#define ubifs_assert(c, expr) do { \ + if (unlikely(!(expr))) { \ + ubifs_assert_failed((struct ubifs_info *)c, #expr, __FILE__, \ + __LINE__); \ + } \ +} while (0) + +#define ubifs_assert_cmt_locked(c) do { \ + if (unlikely(down_write_trylock(&(c)->commit_sem))) { \ + up_write(&(c)->commit_sem); \ + ubifs_err(c, "commit lock is not locked!\n"); \ + ubifs_assert(c, 0); \ + } \ +} while (0) + +#define ubifs_dbg_msg(type, fmt, ...) \ + pr_debug("UBIFS DBG " type " (pid %d): " fmt "\n", current->pid, \ + ##__VA_ARGS__) + +#define DBG_KEY_BUF_LEN 48 +#define ubifs_dbg_msg_key(type, key, fmt, ...) do { \ + char __tmp_key_buf[DBG_KEY_BUF_LEN]; \ + pr_debug("UBIFS DBG " type " (pid %d): " fmt "%s\n", current->pid, \ + ##__VA_ARGS__, \ + dbg_snprintf_key(c, key, __tmp_key_buf, DBG_KEY_BUF_LEN)); \ +} while (0) + +/* General messages */ +#define dbg_gen(fmt, ...) ubifs_dbg_msg("gen", fmt, ##__VA_ARGS__) +/* Additional journal messages */ +#define dbg_jnl(fmt, ...) ubifs_dbg_msg("jnl", fmt, ##__VA_ARGS__) +#define dbg_jnlk(key, fmt, ...) \ + ubifs_dbg_msg_key("jnl", key, fmt, ##__VA_ARGS__) +/* Additional TNC messages */ +#define dbg_tnc(fmt, ...) ubifs_dbg_msg("tnc", fmt, ##__VA_ARGS__) +#define dbg_tnck(key, fmt, ...) \ + ubifs_dbg_msg_key("tnc", key, fmt, ##__VA_ARGS__) +/* Additional lprops messages */ +#define dbg_lp(fmt, ...) ubifs_dbg_msg("lp", fmt, ##__VA_ARGS__) +/* Additional LEB find messages */ +#define dbg_find(fmt, ...) ubifs_dbg_msg("find", fmt, ##__VA_ARGS__) +/* Additional mount messages */ +#define dbg_mnt(fmt, ...) ubifs_dbg_msg("mnt", fmt, ##__VA_ARGS__) +#define dbg_mntk(key, fmt, ...) \ + ubifs_dbg_msg_key("mnt", key, fmt, ##__VA_ARGS__) +/* Additional I/O messages */ +#define dbg_io(fmt, ...) ubifs_dbg_msg("io", fmt, ##__VA_ARGS__) +/* Additional commit messages */ +#define dbg_cmt(fmt, ...) ubifs_dbg_msg("cmt", fmt, ##__VA_ARGS__) +/* Additional budgeting messages */ +#define dbg_budg(fmt, ...) ubifs_dbg_msg("budg", fmt, ##__VA_ARGS__) +/* Additional log messages */ +#define dbg_log(fmt, ...) ubifs_dbg_msg("log", fmt, ##__VA_ARGS__) +/* Additional gc messages */ +#define dbg_gc(fmt, ...) ubifs_dbg_msg("gc", fmt, ##__VA_ARGS__) +/* Additional scan messages */ +#define dbg_scan(fmt, ...) ubifs_dbg_msg("scan", fmt, ##__VA_ARGS__) +/* Additional recovery messages */ +#define dbg_rcvry(fmt, ...) ubifs_dbg_msg("rcvry", fmt, ##__VA_ARGS__) + +extern struct ubifs_global_debug_info ubifs_dbg; + +static inline int dbg_is_chk_gen(const struct ubifs_info *c) +{ + return !!(ubifs_dbg.chk_gen || c->dbg->chk_gen); +} +static inline int dbg_is_chk_index(const struct ubifs_info *c) +{ + return !!(ubifs_dbg.chk_index || c->dbg->chk_index); +} +static inline int dbg_is_chk_orph(const struct ubifs_info *c) +{ + return !!(ubifs_dbg.chk_orph || c->dbg->chk_orph); +} +static inline int dbg_is_chk_lprops(const struct ubifs_info *c) +{ + return !!(ubifs_dbg.chk_lprops || c->dbg->chk_lprops); +} +static inline int dbg_is_chk_fs(const struct ubifs_info *c) +{ + return !!(ubifs_dbg.chk_fs || c->dbg->chk_fs); +} +static inline int dbg_is_tst_rcvry(const struct ubifs_info *c) +{ + return !!(ubifs_dbg.tst_rcvry || c->dbg->tst_rcvry); +} +static inline int dbg_is_power_cut(const struct ubifs_info *c) +{ + return !!c->dbg->pc_happened; +} + +int ubifs_debugging_init(struct ubifs_info *c); +void ubifs_debugging_exit(struct ubifs_info *c); + +/* Dump functions */ +const char *dbg_ntype(int type); +const char *dbg_cstate(int cmt_state); +const char *dbg_jhead(int jhead); +const char *dbg_get_key_dump(const struct ubifs_info *c, + const union ubifs_key *key); +const char *dbg_snprintf_key(const struct ubifs_info *c, + const union ubifs_key *key, char *buffer, int len); +void ubifs_dump_inode(struct ubifs_info *c, const struct inode *inode); +void ubifs_dump_node(const struct ubifs_info *c, const void *node, + int node_len); +void ubifs_dump_budget_req(const struct ubifs_budget_req *req); +void ubifs_dump_lstats(const struct ubifs_lp_stats *lst); +void ubifs_dump_budg(struct ubifs_info *c, const struct ubifs_budg_info *bi); +void ubifs_dump_lprop(const struct ubifs_info *c, + const struct ubifs_lprops *lp); +void ubifs_dump_lprops(struct ubifs_info *c); +void ubifs_dump_lpt_info(struct ubifs_info *c); +void ubifs_dump_leb(const struct ubifs_info *c, int lnum); +void ubifs_dump_znode(const struct ubifs_info *c, + const struct ubifs_znode *znode); +void ubifs_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, + int cat); +void ubifs_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode, + struct ubifs_nnode *parent, int iip); +void ubifs_dump_tnc(struct ubifs_info *c); +void ubifs_dump_index(struct ubifs_info *c); +void ubifs_dump_lpt_lebs(const struct ubifs_info *c); + +int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb, + dbg_znode_callback znode_cb, void *priv); + +/* Checking functions */ +void dbg_save_space_info(struct ubifs_info *c); +int dbg_check_space_info(struct ubifs_info *c); +int dbg_check_lprops(struct ubifs_info *c); +int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot); +int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot); +int dbg_check_cats(struct ubifs_info *c); +int dbg_check_ltab(struct ubifs_info *c); +int dbg_chk_lpt_free_spc(struct ubifs_info *c); +int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len); +int dbg_check_synced_i_size(const struct ubifs_info *c, struct inode *inode); +int dbg_check_dir(struct ubifs_info *c, const struct inode *dir); +int dbg_check_tnc(struct ubifs_info *c, int extra); +int dbg_check_idx_size(struct ubifs_info *c, long long idx_size); +int dbg_check_filesystem(struct ubifs_info *c); +void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat, + int add_pos); +int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode, + int row, int col); +int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode, + loff_t size); +int dbg_check_data_nodes_order(struct ubifs_info *c, struct list_head *head); +int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head); + +int dbg_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs, + int len); +int dbg_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len); +int dbg_leb_unmap(struct ubifs_info *c, int lnum); +int dbg_leb_map(struct ubifs_info *c, int lnum); + +/* Debugfs-related stuff */ +void dbg_debugfs_init(void); +void dbg_debugfs_exit(void); +void dbg_debugfs_init_fs(struct ubifs_info *c); +void dbg_debugfs_exit_fs(struct ubifs_info *c); + +#endif /* !__UBIFS_DEBUG_H__ */ -- cgit v1.3.1