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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 10:52:35 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 10:52:35 -0800 |
commit | 525995d77ca08dfc2ba6f8e606f93694271dbd66 (patch) | |
tree | be9ddad66cd1301eea8dab7814cbda144a909e35 /arch/blackfin/kernel/kgdb_test.c | |
parent | e4bdda1bc3123a9e65f4dd93a23041fde8ed3dc2 (diff) | |
parent | 64a2b168023bfd09037ba760838762e56c44178e (diff) | |
download | kernel_samsung_aries-525995d77ca08dfc2ba6f8e606f93694271dbd66.zip kernel_samsung_aries-525995d77ca08dfc2ba6f8e606f93694271dbd66.tar.gz kernel_samsung_aries-525995d77ca08dfc2ba6f8e606f93694271dbd66.tar.bz2 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (88 commits)
Blackfin: Convert BUG() to use unreachable()
Blackfin: define __NR_recvmmsg
Blackfin: drop duplicate sched_clock
Blackfin: NOMPU: skip DMA ICPLB hole when it is redundant
Blackfin: MPU: add missing __init markings
Blackfin: add support for TIF_NOTIFY_RESUME
Blackfin: kgdb_test: clean up code a bit
Blackfin: convert kgdbtest to proc_fops
Blackfin: convert cyc2ns() to clocksource_cyc2ns()
Blackfin: ip0x: pull in asm/portmux.h for P_xxx defines
Blackfin: drop unused ax88180 resources
Blackfin: bf537-stamp: add ADF702x network driver resources
Blackfin: bf537-stamp: add CAN resources
Blackfin: bf537-stamp: add AD5258 i2c address
Blackfin: bf537-stamp: add adau1761 i2c address
Blackfin: bf537-stamp: add adau1371 i2c address
Blackfin: bf537-stamp: add ADP8870 resources
Blackfin: bf537-stamp: kill AD714x board-specific Kconfigs
Blackfin: bf537-stamp: update ADP5520 resources
Blackfin: bf537-stamp: add ADXL346 orientation sensing support
...
Diffstat (limited to 'arch/blackfin/kernel/kgdb_test.c')
-rw-r--r-- | arch/blackfin/kernel/kgdb_test.c | 67 |
1 files changed, 25 insertions, 42 deletions
diff --git a/arch/blackfin/kernel/kgdb_test.c b/arch/blackfin/kernel/kgdb_test.c index 59fc42d..9a4b075 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; } |