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-rw-r--r--lib/dynamic_printk.c58
1 files changed, 26 insertions, 32 deletions
diff --git a/lib/dynamic_printk.c b/lib/dynamic_printk.c
index 8e30295e8566..165a19763dc9 100644
--- a/lib/dynamic_printk.c
+++ b/lib/dynamic_printk.c
@@ -277,40 +277,34 @@ static ssize_t pr_debug_write(struct file *file, const char __user *buf,
277 dynamic_enabled = DYNAMIC_ENABLED_NONE; 277 dynamic_enabled = DYNAMIC_ENABLED_NONE;
278 } 278 }
279 err = 0; 279 err = 0;
280 } else { 280 } else if (elem) {
281 if (elem) { 281 if (value && (elem->enable == 0)) {
282 if (value && (elem->enable == 0)) { 282 dynamic_printk_enabled |= (1LL << elem->hash1);
283 dynamic_printk_enabled |= 283 dynamic_printk_enabled2 |= (1LL << elem->hash2);
284 (1LL << elem->hash1); 284 elem->enable = 1;
285 dynamic_printk_enabled2 |= 285 num_enabled++;
286 (1LL << elem->hash2); 286 dynamic_enabled = DYNAMIC_ENABLED_SOME;
287 elem->enable = 1; 287 err = 0;
288 num_enabled++; 288 printk(KERN_DEBUG
289 dynamic_enabled = DYNAMIC_ENABLED_SOME; 289 "debugging enabled for module %s\n",
290 err = 0; 290 elem->name);
291 printk(KERN_DEBUG 291 } else if (!value && (elem->enable == 1)) {
292 "debugging enabled for module %s\n", 292 elem->enable = 0;
293 elem->name); 293 num_enabled--;
294 } else if (!value && (elem->enable == 1)) { 294 if (disabled_hash(elem->hash1, true))
295 elem->enable = 0; 295 dynamic_printk_enabled &=
296 num_enabled--;
297 if (disabled_hash(elem->hash1, true))
298 dynamic_printk_enabled &=
299 ~(1LL << elem->hash1); 296 ~(1LL << elem->hash1);
300 if (disabled_hash(elem->hash2, false)) 297 if (disabled_hash(elem->hash2, false))
301 dynamic_printk_enabled2 &= 298 dynamic_printk_enabled2 &=
302 ~(1LL << elem->hash2); 299 ~(1LL << elem->hash2);
303 if (num_enabled) 300 if (num_enabled)
304 dynamic_enabled = 301 dynamic_enabled = DYNAMIC_ENABLED_SOME;
305 DYNAMIC_ENABLED_SOME; 302 else
306 else 303 dynamic_enabled = DYNAMIC_ENABLED_NONE;
307 dynamic_enabled = 304 err = 0;
308 DYNAMIC_ENABLED_NONE; 305 printk(KERN_DEBUG
309 err = 0; 306 "debugging disabled for module %s\n",
310 printk(KERN_DEBUG 307 elem->name);
311 "debugging disabled for module "
312 "%s\n", elem->name);
313 }
314 } 308 }
315 } 309 }
316 } 310 }