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Blackfin: kgdb_test: clean up code a bit

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- document simple global symbols
- convert printk to pr_*
- clean up spurious whitespace
- use min_t()

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2009-12-07 10:20:20 +00:00
parent 397b761cc4
commit 88f7c2fb0f
1 changed files with 21 additions and 23 deletions
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44
arch/blackfin/kernel/kgdb_test.c
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@ -17,6 +17,7 @@
#include <asm/blackfin.h> #include <asm/blackfin.h>
/* Symbols are here for kgdb test to poke directly */
static char cmdline[256]; static char cmdline[256];
static size_t len; static size_t len;
@ -27,11 +28,10 @@ void kgdb_l1_test(void) __attribute__((l1_text));
void kgdb_l1_test(void) void kgdb_l1_test(void)
{ {
printk(KERN_ALERT "L1(before change) : data variable addr = 0x%p, data value is %d\n", &num1, num1); pr_alert("L1(before change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);
printk(KERN_ALERT "L1 : code function addr = 0x%p\n", kgdb_l1_test); pr_alert("L1 : code function addr = 0x%p\n", kgdb_l1_test);
num1 = num1 + 10 ; num1 = num1 + 10;
printk(KERN_ALERT "L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1); pr_alert("L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);
return ;
} }
#endif #endif
@ -42,11 +42,10 @@ void kgdb_l2_test(void) __attribute__((l2));
void kgdb_l2_test(void) void kgdb_l2_test(void)
{ {
printk(KERN_ALERT "L2(before change) : data variable addr = 0x%p, data value is %d\n", &num2, num2); pr_alert("L2(before change) : data variable addr = 0x%p, data value is %d\n", &num2, num2);
printk(KERN_ALERT "L2 : code function addr = 0x%p\n", kgdb_l2_test); pr_alert("L2 : code function addr = 0x%p\n", kgdb_l2_test);
num2 = num2 + 20 ; num2 = num2 + 20;
printk(KERN_ALERT "L2(after change) : data variable addr = 0x%p, data value is %d\n", &num2, num2); pr_alert("L2(after change) : data variable addr = 0x%p, data value is %d\n", &num2, num2);
return ;
} }
#endif #endif
@ -54,13 +53,14 @@ void kgdb_l2_test(void)
int kgdb_test(char *name, int len, int count, int z) int kgdb_test(char *name, int len, int count, int z)
{ {
printk(KERN_ALERT "kgdb name(%d): %s, %d, %d\n", len, name, count, z); pr_alert("kgdb name(%d): %s, %d, %d\n", len, name, count, z);
count = z; count = z;
return count; return count;
} }
static ssize_t kgdb_test_proc_read(struct file *file, char __user *buf, static ssize_t
size_t count, loff_t *ppos) kgdb_test_proc_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{ {
kgdb_test("hello world!", 12, 0x55, 0x10); kgdb_test("hello world!", 12, 0x55, 0x10);
#ifndef CONFIG_SMP #ifndef CONFIG_SMP
@ -73,14 +73,11 @@ static ssize_t kgdb_test_proc_read(struct file *file, char __user *buf,
return 0; return 0;
} }
static ssize_t kgdb_test_proc_write(struct file *file, static ssize_t
const char __user *buffer, size_t count, loff_t *pos) kgdb_test_proc_write(struct file *file, const char __user *buffer,
size_t count, loff_t *pos)
{ {
if (count >= 256) len = min_t(size_t, 255, count);
len = 255;
else
len = count;
memcpy(cmdline, buffer, count); memcpy(cmdline, buffer, count);
cmdline[len] = 0; cmdline[len] = 0;
@ -88,9 +85,9 @@ static ssize_t kgdb_test_proc_write(struct file *file,
} }
static const struct file_operations kgdb_test_proc_fops = { static const struct file_operations kgdb_test_proc_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.read = kgdb_test_proc_read, .read = kgdb_test_proc_read,
.write = kgdb_test_proc_write, .write = kgdb_test_proc_write,
}; };
static int __init kgdbtest_init(void) static int __init kgdbtest_init(void)
@ -100,6 +97,7 @@ static int __init kgdbtest_init(void)
entry = proc_create("kgdbtest", 0, NULL, &kgdb_test_proc_fops); entry = proc_create("kgdbtest", 0, NULL, &kgdb_test_proc_fops);
if (entry == NULL) if (entry == NULL)
return -ENOMEM; return -ENOMEM;
return 0; return 0;
} }