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From: Kees Cook <keescook@chromium.org>
To: WeiXiong Liao <liaoweixiong@allwinnertech.com>
Cc: Kees Cook <keescook@chromium.org>,
	Anton Vorontsov <anton@enomsg.org>,
	Colin Cross <ccross@android.com>, Tony Luck <tony.luck@intel.com>,
	Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	linux-doc@vger.kernel.org, linux-mtd@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v4 01/12] printk: Introduce kmsg_dump_reason_str()
Date: Thu,  7 May 2020 23:39:53 -0700	[thread overview]
Message-ID: <20200508064004.57898-2-keescook@chromium.org> (raw)
In-Reply-To: <20200508064004.57898-1-keescook@chromium.org>

The pstore subsystem already had a private version of this function.
With the coming addition of the pstore/zone driver, this needs to be
shared. As it really should live with printk, move it there instead.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 include/linux/kmsg_dump.h |  7 +++++++
 kernel/printk/printk.c    | 21 +++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index cfc042066be7..b3ddb0b2ee40 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -72,6 +72,8 @@ void kmsg_dump_rewind(struct kmsg_dumper *dumper);
 int kmsg_dump_register(struct kmsg_dumper *dumper);
 
 int kmsg_dump_unregister(struct kmsg_dumper *dumper);
+
+const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason);
 #else
 static inline void kmsg_dump(enum kmsg_dump_reason reason)
 {
@@ -113,6 +115,11 @@ static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
 {
 	return -EINVAL;
 }
+
+static inline const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason)
+{
+	return "Disabled";
+}
 #endif
 
 #endif /* _LINUX_KMSG_DUMP_H */
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 1aab69a8a2bf..67a284830d74 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -3144,6 +3144,27 @@ EXPORT_SYMBOL_GPL(kmsg_dump_unregister);
 static bool always_kmsg_dump;
 module_param_named(always_kmsg_dump, always_kmsg_dump, bool, S_IRUGO | S_IWUSR);
 
+const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason)
+{
+	switch (reason) {
+	case KMSG_DUMP_PANIC:
+		return "Panic";
+	case KMSG_DUMP_OOPS:
+		return "Oops";
+	case KMSG_DUMP_EMERG:
+		return "Emergency";
+	case KMSG_DUMP_RESTART:
+		return "Restart";
+	case KMSG_DUMP_HALT:
+		return "Halt";
+	case KMSG_DUMP_POWEROFF:
+		return "Poweroff";
+	default:
+		return "Unknown";
+	}
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_reason_str);
+
 /**
  * kmsg_dump - dump kernel log to kernel message dumpers.
  * @reason: the reason (oops, panic etc) for dumping
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org>
To: WeiXiong Liao <liaoweixiong@allwinnertech.com>
Cc: Petr Mladek <pmladek@suse.com>, Tony Luck <tony.luck@intel.com>,
	Kees Cook <keescook@chromium.org>,
	linux-doc@vger.kernel.org, Anton Vorontsov <anton@enomsg.org>,
	linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	linux-mtd@lists.infradead.org, Colin Cross <ccross@android.com>
Subject: [PATCH v4 01/12] printk: Introduce kmsg_dump_reason_str()
Date: Thu,  7 May 2020 23:39:53 -0700	[thread overview]
Message-ID: <20200508064004.57898-2-keescook@chromium.org> (raw)
In-Reply-To: <20200508064004.57898-1-keescook@chromium.org>

The pstore subsystem already had a private version of this function.
With the coming addition of the pstore/zone driver, this needs to be
shared. As it really should live with printk, move it there instead.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 include/linux/kmsg_dump.h |  7 +++++++
 kernel/printk/printk.c    | 21 +++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index cfc042066be7..b3ddb0b2ee40 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -72,6 +72,8 @@ void kmsg_dump_rewind(struct kmsg_dumper *dumper);
 int kmsg_dump_register(struct kmsg_dumper *dumper);
 
 int kmsg_dump_unregister(struct kmsg_dumper *dumper);
+
+const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason);
 #else
 static inline void kmsg_dump(enum kmsg_dump_reason reason)
 {
@@ -113,6 +115,11 @@ static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
 {
 	return -EINVAL;
 }
+
+static inline const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason)
+{
+	return "Disabled";
+}
 #endif
 
 #endif /* _LINUX_KMSG_DUMP_H */
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 1aab69a8a2bf..67a284830d74 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -3144,6 +3144,27 @@ EXPORT_SYMBOL_GPL(kmsg_dump_unregister);
 static bool always_kmsg_dump;
 module_param_named(always_kmsg_dump, always_kmsg_dump, bool, S_IRUGO | S_IWUSR);
 
+const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason)
+{
+	switch (reason) {
+	case KMSG_DUMP_PANIC:
+		return "Panic";
+	case KMSG_DUMP_OOPS:
+		return "Oops";
+	case KMSG_DUMP_EMERG:
+		return "Emergency";
+	case KMSG_DUMP_RESTART:
+		return "Restart";
+	case KMSG_DUMP_HALT:
+		return "Halt";
+	case KMSG_DUMP_POWEROFF:
+		return "Poweroff";
+	default:
+		return "Unknown";
+	}
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_reason_str);
+
 /**
  * kmsg_dump - dump kernel log to kernel message dumpers.
  * @reason: the reason (oops, panic etc) for dumping
-- 
2.20.1


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2020-05-08  6:40 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-08  6:39 [PATCH v4 00/12] pstore: mtd: support crash log to block and mtd device Kees Cook
2020-05-08  6:39 ` Kees Cook
2020-05-08  6:39 ` Kees Cook [this message]
2020-05-08  6:39   ` [PATCH v4 01/12] printk: Introduce kmsg_dump_reason_str() Kees Cook
2020-05-08  6:39 ` [PATCH v4 02/12] pstore/zone: Introduce common layer to manage storage zones Kees Cook
2020-05-08  6:39   ` Kees Cook
2020-05-09  3:09   ` WeiXiong Liao
2020-05-09  3:09     ` WeiXiong Liao
2020-05-08  6:39 ` [PATCH v4 03/12] pstore/blk: Introduce backend for block devices Kees Cook
2020-05-08  6:39   ` Kees Cook
2020-05-09  3:48   ` WeiXiong Liao
2020-05-09  3:48     ` WeiXiong Liao
2020-05-08  6:39 ` [PATCH v4 04/12] pstore/blk: Provide way to choose pstore frontend support Kees Cook
2020-05-08  6:39   ` Kees Cook
2020-05-08  6:39 ` [PATCH v4 05/12] pstore/blk: Add support for pmsg frontend Kees Cook
2020-05-08  6:39   ` Kees Cook
2020-05-09  4:38   ` WeiXiong Liao
2020-05-09  4:38     ` WeiXiong Liao
2020-05-08  6:39 ` [PATCH v4 06/12] pstore/blk: Add console frontend support Kees Cook
2020-05-08  6:39   ` Kees Cook
2020-05-09  4:53   ` WeiXiong Liao
2020-05-09  4:53     ` WeiXiong Liao
2020-05-08  6:39 ` [PATCH v4 07/12] pstore/blk: Add ftrace " Kees Cook
2020-05-08  6:39   ` Kees Cook
2020-05-08  6:40 ` [PATCH v4 08/12] Documentation: Add details for pstore/blk Kees Cook
2020-05-08  6:40   ` Kees Cook
2020-05-08  6:40 ` [PATCH v4 09/12] pstore/zone: Provide way to skip "broken" zone for MTD devices Kees Cook
2020-05-08  6:40   ` Kees Cook
2020-05-08  6:40 ` [PATCH v4 10/12] pstore/blk: Provide way to query pstore configuration Kees Cook
2020-05-08  6:40   ` Kees Cook
2020-05-08  6:40 ` [PATCH v4 11/12] pstore/blk: Support non-block storage devices Kees Cook
2020-05-08  6:40   ` Kees Cook
2020-05-08  6:40 ` [PATCH v4 12/12] mtd: Support kmsg dumper based on pstore/blk Kees Cook
2020-05-08  6:40   ` Kees Cook
2020-05-09  5:14   ` WeiXiong Liao
2020-05-09  5:14     ` WeiXiong Liao
2020-05-08  7:27 ` [PATCH v4 00/12] pstore: mtd: support crash log to block and mtd device Kees Cook
2020-05-08  7:27   ` Kees Cook
2020-05-09 10:32   ` WeiXiong Liao
2020-05-09 10:32     ` WeiXiong Liao
2020-05-09 19:10     ` Kees Cook
2020-05-09 19:10       ` Kees Cook

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