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Diffstat (limited to 'arch/blackfin/kernel/kgdb_test.c')
-rw-r--r--arch/blackfin/kernel/kgdb_test.c67
1 files changed, 25 insertions, 42 deletions
diff --git a/arch/blackfin/kernel/kgdb_test.c b/arch/blackfin/kernel/kgdb_test.c
index 59fc42dc5d6a..9a4b07594389 100644
--- a/arch/blackfin/kernel/kgdb_test.c
+++ b/arch/blackfin/kernel/kgdb_test.c
@@ -17,8 +17,9 @@
#include <asm/blackfin.h>
+/* Symbols are here for kgdb test to poke directly */
static char cmdline[256];
-static unsigned long len;
+static size_t len;
#ifndef CONFIG_SMP
static int num1 __attribute__((l1_data));
@@ -27,11 +28,10 @@ void kgdb_l1_test(void) __attribute__((l1_text));
void kgdb_l1_test(void)
{
- printk(KERN_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);
- num1 = num1 + 10 ;
- printk(KERN_ALERT "L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);
- return ;
+ pr_alert("L1(before change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);
+ pr_alert("L1 : code function addr = 0x%p\n", kgdb_l1_test);
+ num1 = num1 + 10;
+ pr_alert("L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1);
}
#endif
@@ -42,11 +42,10 @@ void kgdb_l2_test(void) __attribute__((l2));
void kgdb_l2_test(void)
{
- printk(KERN_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);
- num2 = num2 + 20 ;
- printk(KERN_ALERT "L2(after change) : data variable addr = 0x%p, data value is %d\n", &num2, num2);
- return ;
+ pr_alert("L2(before change) : data variable addr = 0x%p, data value is %d\n", &num2, num2);
+ pr_alert("L2 : code function addr = 0x%p\n", kgdb_l2_test);
+ num2 = num2 + 20;
+ pr_alert("L2(after change) : data variable addr = 0x%p, data value is %d\n", &num2, num2);
}
#endif
@@ -54,12 +53,14 @@ void kgdb_l2_test(void)
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;
return count;
}
-static int test_proc_output(char *buf)
+static ssize_t
+kgdb_test_proc_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
{
kgdb_test("hello world!", 12, 0x55, 0x10);
#ifndef CONFIG_SMP
@@ -72,49 +73,31 @@ static int test_proc_output(char *buf)
return 0;
}
-static int test_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t
+kgdb_test_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *pos)
{
- int len;
-
- len = test_proc_output(page);
- if (len <= off+count)
- *eof = 1;
- *start = page + off;
- len -= off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
- return len;
-}
-
-static int test_write_proc(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- if (count >= 256)
- len = 255;
- else
- len = count;
-
+ len = min_t(size_t, 255, count);
memcpy(cmdline, buffer, count);
cmdline[len] = 0;
return len;
}
+static const struct file_operations kgdb_test_proc_fops = {
+ .owner = THIS_MODULE,
+ .read = kgdb_test_proc_read,
+ .write = kgdb_test_proc_write,
+};
+
static int __init kgdbtest_init(void)
{
struct proc_dir_entry *entry;
- entry = create_proc_entry("kgdbtest", 0, NULL);
+ entry = proc_create("kgdbtest", 0, NULL, &kgdb_test_proc_fops);
if (entry == NULL)
return -ENOMEM;
- entry->read_proc = test_read_proc;
- entry->write_proc = test_write_proc;
- entry->data = NULL;
-
return 0;
}