Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

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
  ...

1 files changed, 119 insertions, 0 deletions

diff --git a/fs/jffs2/compr.h b/fs/jffs2/compr.h
new file mode 100644
index 000000000..3716b6b79
--- /dev/null
+++ b/fs/jffs2/compr.h
@@ -0,0 +1,119 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2004   Ferenc Havasi <havasi@inf.u-szeged.hu>,
+ *		      University of Szeged, Hungary
+ * Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
+
+#ifndef __JFFS2_COMPR_H__
+#define __JFFS2_COMPR_H__
+
+#include <linux/kernel.h>
+#include <linux/vmalloc.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/jffs2.h>
+#include "jffs2_fs_i.h"
+#include "jffs2_fs_sb.h"
+#include "nodelist.h"
+
+#define JFFS2_RUBINMIPS_PRIORITY 10
+#define JFFS2_DYNRUBIN_PRIORITY  20
+#define JFFS2_LZARI_PRIORITY     30
+#define JFFS2_RTIME_PRIORITY     50
+#define JFFS2_ZLIB_PRIORITY      60
+#define JFFS2_LZO_PRIORITY       80
+
+
+#define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */
+#define JFFS2_DYNRUBIN_DISABLED  /*	   for decompression */
+
+#define JFFS2_COMPR_MODE_NONE       0
+#define JFFS2_COMPR_MODE_PRIORITY   1
+#define JFFS2_COMPR_MODE_SIZE       2
+#define JFFS2_COMPR_MODE_FAVOURLZO  3
+#define JFFS2_COMPR_MODE_FORCELZO   4
+#define JFFS2_COMPR_MODE_FORCEZLIB  5
+
+#define FAVOUR_LZO_PERCENT 80
+
+struct jffs2_compressor {
+	struct list_head list;
+	int priority;			/* used by prirority comr. mode */
+	char *name;
+	char compr;			/* JFFS2_COMPR_XXX */
+	int (*compress)(unsigned char *data_in, unsigned char *cpage_out,
+			uint32_t *srclen, uint32_t *destlen);
+	int (*decompress)(unsigned char *cdata_in, unsigned char *data_out,
+			  uint32_t cdatalen, uint32_t datalen);
+	int usecount;
+	int disabled;		/* if set the compressor won't compress */
+	unsigned char *compr_buf;	/* used by size compr. mode */
+	uint32_t compr_buf_size;	/* used by size compr. mode */
+	uint32_t stat_compr_orig_size;
+	uint32_t stat_compr_new_size;
+	uint32_t stat_compr_blocks;
+	uint32_t stat_decompr_blocks;
+};
+
+int jffs2_register_compressor(struct jffs2_compressor *comp);
+int jffs2_unregister_compressor(struct jffs2_compressor *comp);
+
+int jffs2_compressors_init(void);
+int jffs2_compressors_exit(void);
+
+uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
+			unsigned char *data_in, unsigned char **cpage_out,
+			uint32_t *datalen, uint32_t *cdatalen);
+
+int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
+		     uint16_t comprtype, unsigned char *cdata_in,
+		     unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
+
+void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig);
+
+/* Compressor modules */
+/* These functions will be called by jffs2_compressors_init/exit */
+
+#ifdef CONFIG_JFFS2_RUBIN
+int jffs2_rubinmips_init(void);
+void jffs2_rubinmips_exit(void);
+int jffs2_dynrubin_init(void);
+void jffs2_dynrubin_exit(void);
+#else
+static inline int jffs2_rubinmips_init(void) { return 0; }
+static inline void jffs2_rubinmips_exit(void) {}
+static inline int jffs2_dynrubin_init(void) { return 0; }
+static inline void jffs2_dynrubin_exit(void) {}
+#endif
+#ifdef CONFIG_JFFS2_RTIME
+extern int jffs2_rtime_init(void);
+extern void jffs2_rtime_exit(void);
+#else
+static inline int jffs2_rtime_init(void) { return 0; }
+static inline void jffs2_rtime_exit(void) {}
+#endif
+#ifdef CONFIG_JFFS2_ZLIB
+extern int jffs2_zlib_init(void);
+extern void jffs2_zlib_exit(void);
+#else
+static inline int jffs2_zlib_init(void) { return 0; }
+static inline void jffs2_zlib_exit(void) {}
+#endif
+#ifdef CONFIG_JFFS2_LZO
+extern int jffs2_lzo_init(void);
+extern void jffs2_lzo_exit(void);
+#else
+static inline int jffs2_lzo_init(void) { return 0; }
+static inline void jffs2_lzo_exit(void) {}
+#endif
+
+#endif /* __JFFS2_COMPR_H__ */