linux-kernel - [PATCH] pstore: Headers should include all stuff they use

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Date:	Tue, 17 Jul 2012 11:13:59 -0700
From:	Anton Vorontsov <anton.vorontsov@...aro.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Kees Cook <keescook@...omium.org>,
	Colin Cross <ccross@...roid.com>,
	Tony Luck <tony.luck@...el.com>
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	Arnd Bergmann <arnd@...db.de>,
	John Stultz <john.stultz@...aro.org>,
	Shuah Khan <shuahkhan@...il.com>, arve@...roid.com,
	Rebecca Schultz Zavin <rebecca@...roid.com>,
	Jesper Juhl <jj@...osbits.net>,
	Randy Dunlap <rdunlap@...otime.net>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Thomas Meyer <thomas@...3r.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marco Stornelli <marco.stornelli@...il.com>,
	WANG Cong <xiyou.wangcong@...il.com>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	kernel-team@...roid.com
Subject: [PATCH] pstore: Headers should include all stuff they use

Headers should really include all the needed prototypes, types, defines
etc. to be self-contained. This is a long-standing issue, but apparently
the new tracing code unearthed it (SMP=n is also a prerequisite):

In file included from fs/pstore/internal.h:4:0,
                 from fs/pstore/ftrace.c:21:
include/linux/pstore.h:43:15: error: field ‘read_mutex’ has incomplete type

While at it, I also added the following:

linux/types.h -> size_t, phys_addr_t, uXX and friends
linux/spinlock.h -> spinlock_t
linux/errno.h -> Exxxx
linux/time.h -> struct timespec (struct passed by value)
struct module and rs_control forward declaration (passed via pointers).

Signed-off-by: Anton Vorontsov <anton.vorontsov@...aro.org>
---
 fs/pstore/internal.h       |    2 ++
 include/linux/pstore.h     |    6 ++++++
 include/linux/pstore_ram.h |    1 +
 3 files changed, 9 insertions(+)

diff --git a/fs/pstore/internal.h b/fs/pstore/internal.h
index 958c48d..0d0d3b7 100644
--- a/fs/pstore/internal.h
+++ b/fs/pstore/internal.h
@@ -1,6 +1,8 @@
 #ifndef __PSTORE_INTERNAL_H__
 #define __PSTORE_INTERNAL_H__
 
+#include <linux/types.h>
+#include <linux/time.h>
 #include <linux/pstore.h>
 
 #if NR_CPUS <= 2 && defined(CONFIG_ARM_THUMB)
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index 120443b..c892587 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -24,6 +24,10 @@
 
 #include <linux/time.h>
 #include <linux/kmsg_dump.h>
+#include <linux/mutex.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
 
 /* types */
 enum pstore_type_id {
@@ -34,6 +38,8 @@ enum pstore_type_id {
 	PSTORE_TYPE_UNKNOWN	= 255
 };
 
+struct module;
+
 struct pstore_info {
 	struct module	*owner;
 	char		*name;
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index af848e1..ba2b211 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -24,6 +24,7 @@
 #include <linux/init.h>
 
 struct persistent_ram_buffer;
+struct rs_control;
 
 struct persistent_ram_zone {
 	phys_addr_t paddr;
-- 
1.7.10.4

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