disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/pstore.h
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@@ -1,3 +1,4 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Persistent Storage - pstore.h
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  *
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@@ -5,19 +6,6 @@
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  *
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  * This code is the generic layer to export data records from platform
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  * level persistent storage via a file system.
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- *
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- *  This program is free software; you can redistribute it and/or modify
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- *  it under the terms of the GNU General Public License version 2 as
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- *  published by the Free Software Foundation.
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- *
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- *  This program is distributed in the hope that it will be useful,
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- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *  GNU General Public License for more details.
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- *
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- *  You should have received a copy of the GNU General Public License
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- *  along with this program; if not, write to the Free Software
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- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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  */
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 #ifndef _LINUX_PSTORE_H
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 #define _LINUX_PSTORE_H
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 struct module;
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-/* pstore record types (see fs/pstore/inode.c for filename templates) */
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+/*
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+ * pstore record types (see fs/pstore/platform.c for pstore_type_names[])
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+ * These values may be written to storage (see EFI vars backend), so
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+ * they are kind of an ABI. Be careful changing the mappings.
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+ */
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 enum pstore_type_id {
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+	/* Frontend storage types */
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 	PSTORE_TYPE_DMESG	= 0,
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 	PSTORE_TYPE_MCE		= 1,
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 	PSTORE_TYPE_CONSOLE	= 2,
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 	PSTORE_TYPE_FTRACE	= 3,
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-	/* PPC64 partition types */
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+
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+	/* PPC64-specific partition types */
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 	PSTORE_TYPE_PPC_RTAS	= 4,
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 	PSTORE_TYPE_PPC_OF	= 5,
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 	PSTORE_TYPE_PPC_COMMON	= 6,
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 	PSTORE_TYPE_PMSG	= 7,
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 	PSTORE_TYPE_PPC_OPAL	= 8,
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-#ifdef CONFIG_PSTORE_MCU_LOG
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-	PSTORE_TYPE_MCU_LOG	= 9,
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+#ifdef CONFIG_PSTORE_BOOT_LOG
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+	PSTORE_TYPE_BOOT_LOG	= 9,
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 #endif
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-	PSTORE_TYPE_UNKNOWN	= 255
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+
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+	/* End of the list */
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+	PSTORE_TYPE_MAX
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 };
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+
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+const char *pstore_type_to_name(enum pstore_type_id type);
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+enum pstore_type_id pstore_name_to_type(const char *name);
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 struct pstore_info;
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 /**
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@@ -88,7 +87,7 @@
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 /**
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  * struct pstore_info - backend pstore driver structure
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  *
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- * @owner:	module which is repsonsible for this backend driver
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+ * @owner:	module which is responsible for this backend driver
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  * @name:	name of the backend driver
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  *
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  * @buf_lock:	semaphore to serialize access to @buf
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@@ -100,6 +99,12 @@
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  *
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  * @read_mutex:	serializes @open, @read, @close, and @erase callbacks
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  * @flags:	bitfield of frontends the backend can accept writes for
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+ * @max_reason:	Used when PSTORE_FLAGS_DMESG is set. Contains the
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+ *		kmsg_dump_reason enum value. KMSG_DUMP_UNDEF means
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+ *		"use existing kmsg_dump() filtering, based on the
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+ *		printk.always_kmsg_dump boot param" (which is either
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+ *		KMSG_DUMP_OOPS when false, or KMSG_DUMP_MAX when
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+ *		true); see printk.always_kmsg_dump for more details.
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  * @data:	backend-private pointer passed back during callbacks
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  *
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  * Callbacks:
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  */
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 struct pstore_info {
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 	struct module	*owner;
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-	char		*name;
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+	const char	*name;
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 	struct semaphore buf_lock;
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 	char		*buf;
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 	struct mutex	read_mutex;
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 	int		flags;
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+	int		max_reason;
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 	void		*data;
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 	int		(*open)(struct pstore_info *psi);
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 };
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 /* Supported frontends */
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-#define PSTORE_FLAGS_DMESG	(1 << 0)
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-#define PSTORE_FLAGS_CONSOLE	(1 << 1)
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-#define PSTORE_FLAGS_FTRACE	(1 << 2)
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-#define PSTORE_FLAGS_PMSG	(1 << 3)
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-#ifdef CONFIG_PSTORE_MCU_LOG
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-#define PSTORE_FLAGS_MCU_LOG	(1 << 4)
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+#define PSTORE_FLAGS_DMESG	BIT(0)
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+#define PSTORE_FLAGS_CONSOLE	BIT(1)
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+#define PSTORE_FLAGS_FTRACE	BIT(2)
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+#define PSTORE_FLAGS_PMSG	BIT(3)
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+#ifdef CONFIG_PSTORE_BOOT_LOG
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+#define PSTORE_FLAGS_BOOT_LOG	BIT(4)
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 #endif
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+
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 extern int pstore_register(struct pstore_info *);
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 extern void pstore_unregister(struct pstore_info *);
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