[-mm patch] kernel/kexec.c: make code static

Adrian Bunk
2007-09-09T20:27:16Z

On Fri, Aug 31, 2007 at 09:58:22PM -0700, Andrew Morton wrote:
>...
> Changes since 2.6.23-rc3-mm1:
>...
> +add-vmcoreinfo.patch
>...
> misc
>...

This patch makes the following needlessly global code static:
- vmcoreinfo_data[]
- vmcoreinfo_size
- vmcoreinfo_append_str()

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

include/linux/kexec.h | 14 -----------
kernel/kexec.c | 52 +++++++++++++++++++++++++-----------------
2 files changed, 32 insertions(+), 34 deletions(-)

e6dbb01497c12aa69b47914da4db1cfd23e9813e
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 99f2d6f..7cce357 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -123,21 +123,8 @@ int kexec_should_crash(struct task_struct *);
void crash_save_cpu(struct pt_regs *regs, int cpu);
void crash_save_vmcoreinfo(void);
void arch_crash_save_vmcoreinfo(void);
-void vmcoreinfo_append_str(const char *fmt, ...);
unsigned long paddr_vmcoreinfo_note(void);

-#define SYMBOL(name) \
- vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
-#define SIZE(name) \
- vmcoreinfo_append_str("SIZE(%s)=%d\n", #name, sizeof(struct name))
-#define OFFSET(name, field) \
- vmcoreinfo_append_str("OFFSET(%s.%s)=%d\n", #name, #field, \
- &(((struct name *)0)->field))
-#define LENGTH(name, value) \
- vmcoreinfo_append_str("LENGTH(%s)=%d\n", #name, value)
-#define CONFIG(name) \
- vmcoreinfo_append_str("CONFIG_%s=y\n", #name)
-
extern struct kimage *kexec_image;
extern struct kimage *kexec_crash_image;

@@ -177,7 +164,6 @@ extern struct resource crashk_res;
typedef u32 note_buf_t[KEXEC_NOTE_BYTES/4];
extern note_buf_t *crash_notes;
extern u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
-extern unsigned int vmcoreinfo_size;
extern unsigned int vmcoreinfo_max_size;

diff --git a/kernel/kexec.c b/kernel/kexec.c
index af2c035..c84a387 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -36,9 +36,9 @@
note_buf_t* crash_notes;

/* vmcoreinfo stuff */
-unsigned char vmcoreinfo_data[VMCOREINFO_BYTES];
+static unsigned char vmcoreinfo_data[VMCOREINFO_BYTES];
u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
-unsigned int vmcoreinfo_size = 0;
+static unsigned int vmcoreinfo_size = 0;
unsigned int vmcoreinfo_max_size = sizeof(vmcoreinfo_data);

/* Location of the reserved area for the crash kernel */
@@ -49,6 +49,36 @@ struct resource crashk_res = {
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};

+#define SYMBOL(name) \
+ vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
+#define SIZE(name) \
+ vmcoreinfo_append_str("SIZE(%s)=%d\n", #name, sizeof(struct name))
+#define OFFSET(name, field) \
+ vmcoreinfo_append_str("OFFSET(%s.%s)=%d\n", #name, #field, \
+ &(((struct name *)0)->field))
+#define LENGTH(name, value) \
+ vmcoreinfo_append_str("LENGTH(%s)=%d\n", #name, value)
+#define CONFIG(name) \
+ vmcoreinfo_append_str("CONFIG_%s=y\n", #name)
+
+static void vmcoreinfo_append_str(const char *fmt, ...)
+{
+ va_list args;
+ char buf[0x50];
+ int r;
+
+ va_start(args, fmt);
+ r = vsnprintf(buf, sizeof(buf), fmt, args);
+ va_end(args);
+
+ if (r + vmcoreinfo_size > vmcoreinfo_max_size)
+ r = vmcoreinfo_max_size - vmcoreinfo_size;
+
+ memcpy(&vmcoreinfo_data[vmcoreinfo_size], buf, r);
+
+ vmcoreinfo_size += r;
+}
+
int kexec_should_crash(struct task_struct *p)
{
if (in_interrupt() || !p->pid || is_global_init(p) || panic_on_oops)
@@ -1163,24 +1193,6 @@ void crash_save_vmcoreinfo(void)
final_note(buf);
}

-void vmcoreinfo_append_str(const char *fmt, ...)
-{
- va_list args;
- char buf[0x50];
- int r;
-
- va_start(args, fmt);
- r = vsnprintf(buf, sizeof(buf), fmt, args);
- va_end(args);
-
- if (r + vmcoreinfo_size > vmcoreinfo_max_size)
- r = vmcoreinfo_max_size - vmcoreinfo_size;
-
- memcpy(&vmcoreinfo_data[vmcoreinfo_size], buf, r);
-
- vmcoreinfo_size += r;
-}
-
/*
* provide an empty default implementation here -- architecture
* code may override this