Re: [PATCH 01/18] kernel: Use pr_fmt

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

On Thu, May 10, 2018 at 08:45:27AM -0700, Joe Perches wrote:
> Sometime in the future, it would be useful to convert pr_fmt from a
> default simple define to use a default prefix with KBUILD_MODNAME.
> 
> There are files in kernel/ that use pr_<level>, some with an embedded
> prefix, that also do not have a specific pr_fmt define.
> 
> Add pr_fmt for those files.
> 
> There are some differences in output as some messages are now prefixed
> with their KBUILD_MODNAME.
> 
> Miscellanea:
> 
> o Align multiline statements to open parenthesis
> o Wrap and realign arguments to 80 columns where sensible
> o Coalesce formats
> 
> Signed-off-by: Joe Perches <joe@perches.com>

For kernel/torture.c:

Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

> ---
>  kernel/acct.c          |  2 ++
>  kernel/async.c         | 14 ++++++------
>  kernel/audit_tree.c    |  2 +-
>  kernel/backtracetest.c |  8 +++----
>  kernel/crash_core.c    | 29 ++++++++++++++-----------
>  kernel/exit.c          |  2 ++
>  kernel/hung_task.c     | 13 +++++------
>  kernel/kprobes.c       | 20 ++++++++++-------
>  kernel/module.c        | 59 +++++++++++++++++++++++---------------------------
>  kernel/panic.c         |  3 +++
>  kernel/params.c        | 13 ++++++-----
>  kernel/pid.c           |  2 ++
>  kernel/profile.c       |  2 ++
>  kernel/range.c         |  2 +-
>  kernel/relay.c         |  5 ++++-
>  kernel/seccomp.c       |  4 +++-
>  kernel/signal.c        | 10 +++++----
>  kernel/smpboot.c       |  5 ++++-
>  kernel/taskstats.c     |  4 +++-
>  kernel/torture.c       |  6 +++--
>  kernel/tracepoint.c    |  3 +++
>  kernel/workqueue.c     |  2 ++
>  22 files changed, 122 insertions(+), 88 deletions(-)
> 
> diff --git a/kernel/acct.c b/kernel/acct.c
> index addf7732fb56..c3d393655f11 100644
> --- a/kernel/acct.c
> +++ b/kernel/acct.c
> @@ -44,6 +44,8 @@
>   * a struct file opened for write. Fixed. 2/6/2000, AV.
>   */
> 
> +#define pr_fmt(fmt) fmt
> +
>  #include <linux/mm.h>
>  #include <linux/slab.h>
>  #include <linux/acct.h>
> diff --git a/kernel/async.c b/kernel/async.c
> index a893d6170944..9a6ab6016713 100644
> --- a/kernel/async.c
> +++ b/kernel/async.c
> @@ -120,8 +120,8 @@ static void async_run_entry_fn(struct work_struct *work)
>  	/* 1) run (and print duration) */
>  	if (initcall_debug && system_state < SYSTEM_RUNNING) {
>  		pr_debug("calling  %lli_%pF @ %i\n",
> -			(long long)entry->cookie,
> -			entry->func, task_pid_nr(current));
> +			 (long long)entry->cookie,
> +			 entry->func, task_pid_nr(current));
>  		calltime = ktime_get();
>  	}
>  	entry->func(entry->data, entry->cookie);
> @@ -129,9 +129,9 @@ static void async_run_entry_fn(struct work_struct *work)
>  		rettime = ktime_get();
>  		delta = ktime_sub(rettime, calltime);
>  		pr_debug("initcall %lli_%pF returned 0 after %lld usecs\n",
> -			(long long)entry->cookie,
> -			entry->func,
> -			(long long)ktime_to_ns(delta) >> 10);
> +			 (long long)entry->cookie,
> +			 entry->func,
> +			 (long long)ktime_to_ns(delta) >> 10);
>  	}
> 
>  	/* 2) remove self from the pending queues */
> @@ -300,8 +300,8 @@ void async_synchronize_cookie_domain(async_cookie_t cookie, struct async_domain
>  		delta = ktime_sub(endtime, starttime);
> 
>  		pr_debug("async_continuing @ %i after %lli usec\n",
> -			task_pid_nr(current),
> -			(long long)ktime_to_ns(delta) >> 10);
> +			 task_pid_nr(current),
> +			 (long long)ktime_to_ns(delta) >> 10);
>  	}
>  }
>  EXPORT_SYMBOL_GPL(async_synchronize_cookie_domain);
> diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
> index 67e6956c0b61..f34f90b4a346 100644
> --- a/kernel/audit_tree.c
> +++ b/kernel/audit_tree.c
> @@ -739,7 +739,7 @@ static int audit_launch_prune(void)
>  	prune_thread = kthread_run(prune_tree_thread, NULL,
>  				"audit_prune_tree");
>  	if (IS_ERR(prune_thread)) {
> -		pr_err("cannot start thread audit_prune_tree");
> +		pr_err("cannot start thread audit_prune_tree\n");
>  		prune_thread = NULL;
>  		return -ENOMEM;
>  	}
> diff --git a/kernel/backtracetest.c b/kernel/backtracetest.c
> index 1323360d90e3..d10cc39b0134 100644
> --- a/kernel/backtracetest.c
> +++ b/kernel/backtracetest.c
> @@ -19,7 +19,7 @@
> 
>  static void backtrace_test_normal(void)
>  {
> -	pr_info("Testing a backtrace from process context.\n");
> +	pr_info("Testing a backtrace from process context\n");
>  	pr_info("The following trace is a kernel self test and not a bug!\n");
> 
>  	dump_stack();
> @@ -37,7 +37,7 @@ static DECLARE_TASKLET(backtrace_tasklet, &backtrace_test_irq_callback, 0);
> 
>  static void backtrace_test_irq(void)
>  {
> -	pr_info("Testing a backtrace from irq context.\n");
> +	pr_info("Testing a backtrace from irq context\n");
>  	pr_info("The following trace is a kernel self test and not a bug!\n");
> 
>  	init_completion(&backtrace_work);
> @@ -51,7 +51,7 @@ static void backtrace_test_saved(void)
>  	struct stack_trace trace;
>  	unsigned long entries[8];
> 
> -	pr_info("Testing a saved backtrace.\n");
> +	pr_info("Testing a saved backtrace\n");
>  	pr_info("The following trace is a kernel self test and not a bug!\n");
> 
>  	trace.nr_entries = 0;
> @@ -65,7 +65,7 @@ static void backtrace_test_saved(void)
>  #else
>  static void backtrace_test_saved(void)
>  {
> -	pr_info("Saved backtrace test skipped.\n");
> +	pr_info("Saved backtrace test skipped\n");
>  }
>  #endif
> 
> diff --git a/kernel/crash_core.c b/kernel/crash_core.c
> index f7674d676889..4eda1ee9da8c 100644
> --- a/kernel/crash_core.c
> +++ b/kernel/crash_core.c
> @@ -6,6 +6,8 @@
>   * Version 2.  See the file COPYING for more details.
>   */
> 
> +#define pr_fmt(fmt) "crashkernel: " fmt
> +
>  #include <linux/crash_core.h>
>  #include <linux/utsname.h>
>  #include <linux/vmalloc.h>
> @@ -49,12 +51,12 @@ static int __init parse_crashkernel_mem(char *cmdline,
>  		/* get the start of the range */
>  		start = memparse(cur, &tmp);
>  		if (cur == tmp) {
> -			pr_warn("crashkernel: Memory value expected\n");
> +			pr_warn("Memory value expected\n");
>  			return -EINVAL;
>  		}
>  		cur = tmp;
>  		if (*cur != '-') {
> -			pr_warn("crashkernel: '-' expected\n");
> +			pr_warn("'-' expected\n");
>  			return -EINVAL;
>  		}
>  		cur++;
> @@ -63,18 +65,18 @@ static int __init parse_crashkernel_mem(char *cmdline,
>  		if (*cur != ':') {
>  			end = memparse(cur, &tmp);
>  			if (cur == tmp) {
> -				pr_warn("crashkernel: Memory value expected\n");
> +				pr_warn("Memory value expected\n");
>  				return -EINVAL;
>  			}
>  			cur = tmp;
>  			if (end <= start) {
> -				pr_warn("crashkernel: end <= start\n");
> +				pr_warn("end <= start\n");
>  				return -EINVAL;
>  			}
>  		}
> 
>  		if (*cur != ':') {
> -			pr_warn("crashkernel: ':' expected\n");
> +			pr_warn("':' expected\n");
>  			return -EINVAL;
>  		}
>  		cur++;
> @@ -86,7 +88,7 @@ static int __init parse_crashkernel_mem(char *cmdline,
>  		}
>  		cur = tmp;
>  		if (size >= system_ram) {
> -			pr_warn("crashkernel: invalid size\n");
> +			pr_warn("invalid size\n");
>  			return -EINVAL;
>  		}
> 
> @@ -108,8 +110,9 @@ static int __init parse_crashkernel_mem(char *cmdline,
>  				return -EINVAL;
>  			}
>  		}
> -	} else
> -		pr_info("crashkernel size resulted in zero bytes\n");
> +	} else {
> +		pr_info("size resulted in zero bytes\n");
> +	}
> 
>  	return 0;
>  }
> @@ -129,14 +132,14 @@ static int __init parse_crashkernel_simple(char *cmdline,
> 
>  	*crash_size = memparse(cmdline, &cur);
>  	if (cmdline == cur) {
> -		pr_warn("crashkernel: memory value expected\n");
> +		pr_warn("memory value expected\n");
>  		return -EINVAL;
>  	}
> 
>  	if (*cur == '@')
>  		*crash_base = memparse(cur+1, &cur);
>  	else if (*cur != ' ' && *cur != '\0') {
> -		pr_warn("crashkernel: unrecognized char: %c\n", *cur);
> +		pr_warn("unrecognized char: %c\n", *cur);
>  		return -EINVAL;
>  	}
> 
> @@ -167,18 +170,18 @@ static int __init parse_crashkernel_suffix(char *cmdline,
> 
>  	*crash_size = memparse(cmdline, &cur);
>  	if (cmdline == cur) {
> -		pr_warn("crashkernel: memory value expected\n");
> +		pr_warn("memory value expected\n");
>  		return -EINVAL;
>  	}
> 
>  	/* check with suffix */
>  	if (strncmp(cur, suffix, strlen(suffix))) {
> -		pr_warn("crashkernel: unrecognized char: %c\n", *cur);
> +		pr_warn("unrecognized char: %c\n", *cur);
>  		return -EINVAL;
>  	}
>  	cur += strlen(suffix);
>  	if (*cur != ' ' && *cur != '\0') {
> -		pr_warn("crashkernel: unrecognized char: %c\n", *cur);
> +		pr_warn("unrecognized char: %c\n", *cur);
>  		return -EINVAL;
>  	}
> 
> diff --git a/kernel/exit.c b/kernel/exit.c
> index 68e1598d7931..679d4de9a5fa 100644
> --- a/kernel/exit.c
> +++ b/kernel/exit.c
> @@ -4,6 +4,8 @@
>   *  Copyright (C) 1991, 1992  Linus Torvalds
>   */
> 
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/mm.h>
>  #include <linux/slab.h>
>  #include <linux/sched/autogroup.h>
> diff --git a/kernel/hung_task.c b/kernel/hung_task.c
> index 32b479468e4d..c66278415811 100644
> --- a/kernel/hung_task.c
> +++ b/kernel/hung_task.c
> @@ -113,14 +113,13 @@ static void check_hung_task(struct task_struct *t, unsigned long timeout)
>  	if (sysctl_hung_task_warnings) {
>  		if (sysctl_hung_task_warnings > 0)
>  			sysctl_hung_task_warnings--;
> -		pr_err("INFO: task %s:%d blocked for more than %ld seconds.\n",
> -			t->comm, t->pid, timeout);
> +		pr_err("INFO: task %s:%d blocked for more than %ld seconds\n",
> +		       t->comm, t->pid, timeout);
>  		pr_err("      %s %s %.*s\n",
> -			print_tainted(), init_utsname()->release,
> -			(int)strcspn(init_utsname()->version, " "),
> -			init_utsname()->version);
> -		pr_err("\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\""
> -			" disables this message.\n");
> +		       print_tainted(), init_utsname()->release,
> +		       (int)strcspn(init_utsname()->version, " "),
> +		       init_utsname()->version);
> +		pr_err("\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message\n");
>  		sched_show_task(t);
>  		hung_task_show_lock = true;
>  	}
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index ea619021d901..0b8facde8dd0 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -31,6 +31,9 @@
>   *		<jkenisto@us.ibm.com> and Prasanna S Panchamukhi
>   *		<prasanna@in.ibm.com> added function-return probes.
>   */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/kprobes.h>
>  #include <linux/hash.h>
>  #include <linux/init.h>
> @@ -985,7 +988,8 @@ static int arm_kprobe_ftrace(struct kprobe *p)
>  	ret = ftrace_set_filter_ip(&kprobe_ftrace_ops,
>  				   (unsigned long)p->addr, 0, 0);
>  	if (ret) {
> -		pr_debug("Failed to arm kprobe-ftrace at %p (%d)\n", p->addr, ret);
> +		pr_debug("Failed to arm kprobe-ftrace at %p (%d)\n",
> +			 p->addr, ret);
>  		return ret;
>  	}
> 
> @@ -2198,7 +2202,7 @@ static int __init populate_kprobe_blacklist(unsigned long *start,
>  		if (!kernel_text_address(entry) ||
>  		    !kallsyms_lookup_size_offset(entry, &size, &offset)) {
>  			pr_err("Failed to find blacklist at %p\n",
> -				(void *)entry);
> +			       (void *)entry);
>  			continue;
>  		}
> 
> @@ -2281,8 +2285,8 @@ static int __init init_kprobes(void)
>  	err = populate_kprobe_blacklist(__start_kprobe_blacklist,
>  					__stop_kprobe_blacklist);
>  	if (err) {
> -		pr_err("kprobes: failed to populate blacklist: %d\n", err);
> -		pr_err("Please take care of using kprobes.\n");
> +		pr_err("failed to populate blacklist: %d\n", err);
> +		pr_err("Please take care of using kprobes\n");
>  	}
> 
>  	if (kretprobe_blacklist_size) {
> @@ -2488,10 +2492,10 @@ static int arm_all_kprobes(void)
>  	}
> 
>  	if (errors)
> -		pr_warn("Kprobes globally enabled, but failed to arm %d out of %d probes\n",
> +		pr_warn("globally enabled, but failed to arm %d out of %d probes\n",
>  			errors, total);
>  	else
> -		pr_info("Kprobes globally enabled\n");
> +		pr_info("globally enabled\n");
> 
>  already_enabled:
>  	mutex_unlock(&kprobe_mutex);
> @@ -2531,10 +2535,10 @@ static int disarm_all_kprobes(void)
>  	}
> 
>  	if (errors)
> -		pr_warn("Kprobes globally disabled, but failed to disarm %d out of %d probes\n",
> +		pr_warn("globally disabled, but failed to disarm %d out of %d probes\n",
>  			errors, total);
>  	else
> -		pr_info("Kprobes globally disabled\n");
> +		pr_info("globally disabled\n");
> 
>  	mutex_unlock(&kprobe_mutex);
> 
> diff --git a/kernel/module.c b/kernel/module.c
> index 36543e382389..94624b46c9bd 100644
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -16,6 +16,9 @@
>      along with this program; if not, write to the Free Software
>      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
>  */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/export.h>
>  #include <linux/extable.h>
>  #include <linux/moduleloader.h>
> @@ -523,21 +526,17 @@ static bool check_symbol(const struct symsearch *syms,
>  		if (syms->licence == GPL_ONLY)
>  			return false;
>  		if (syms->licence == WILL_BE_GPL_ONLY && fsa->warn) {
> -			pr_warn("Symbol %s is being used by a non-GPL module, "
> -				"which will not be allowed in the future\n",
> +			pr_warn("Symbol %s is being used by a non-GPL module, which will not be allowed in the future.\n",
>  				fsa->name);
>  		}
>  	}
> 
>  #ifdef CONFIG_UNUSED_SYMBOLS
>  	if (syms->unused && fsa->warn) {
> -		pr_warn("Symbol %s is marked as UNUSED, however this module is "
> -			"using it.\n", fsa->name);
> +		pr_warn("Symbol %s is marked as UNUSED, however this module is using it.\n",
> +			fsa->name);
>  		pr_warn("This symbol will go away in the future.\n");
> -		pr_warn("Please evaluate if this is the right api to use and "
> -			"if it really is, submit a report to the linux kernel "
> -			"mailing list together with submitting your code for "
> -			"inclusion.\n");
> +		pr_warn("Please evaluate if this is the right api to use and if it really is, submit a report to the linux kernel mailing list together with submitting your code for inclusion.\n");
>  	}
>  #endif
> 
> @@ -843,7 +842,7 @@ static int add_module_usage(struct module *a, struct module *b)
>  {
>  	struct module_use *use;
> 
> -	pr_debug("Allocating new usage for %s.\n", a->name);
> +	pr_debug("Allocating new usage for %s\n", a->name);
>  	use = kmalloc(sizeof(*use), GFP_ATOMIC);
>  	if (!use)
>  		return -ENOMEM;
> @@ -1265,7 +1264,7 @@ static int try_to_force_load(struct module *mod, const char *reason)
>  {
>  #ifdef CONFIG_MODULE_FORCE_LOAD
>  	if (!test_taint(TAINT_FORCED_MODULE))
> -		pr_warn("%s: %s: kernel tainted.\n", mod->name, reason);
> +		pr_warn("%s: %s: kernel tainted\n", mod->name, reason);
>  	add_taint_module(mod, TAINT_FORCED_MODULE, LOCKDEP_NOW_UNRELIABLE);
>  	return 0;
>  #else
> @@ -1435,7 +1434,7 @@ resolve_symbol_wait(struct module *mod,
>  			!IS_ERR(ksym = resolve_symbol(mod, info, name, owner))
>  			|| PTR_ERR(ksym) != -EBUSY,
>  					     30 * HZ) <= 0) {
> -		pr_warn("%s: gave up waiting for init of module %s.\n",
> +		pr_warn("%s: gave up waiting for init of module %s\n",
>  			mod->name, owner);
>  	}
>  	return ksym;
> @@ -2224,8 +2223,7 @@ static int verify_export_symbols(struct module *mod)
>  	for (i = 0; i < ARRAY_SIZE(arr); i++) {
>  		for (s = arr[i].sym; s < arr[i].sym + arr[i].num; s++) {
>  			if (find_symbol(s->name, &owner, NULL, true, false)) {
> -				pr_err("%s: exports duplicate symbol %s"
> -				       " (owned by %s)\n",
> +				pr_err("%s: exports duplicate symbol %s (owned by %s)\n",
>  				       mod->name, s->name, module_name(owner));
>  				return -ENOEXEC;
>  			}
> @@ -2257,14 +2255,14 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
>  			   supposed to happen.  */
>  			pr_debug("Common symbol: %s\n", name);
>  			pr_warn("%s: please compile with -fno-common\n",
> -			       mod->name);
> +				mod->name);
>  			ret = -ENOEXEC;
>  			break;
> 
>  		case SHN_ABS:
>  			/* Don't need to do anything */
>  			pr_debug("Absolute symbol: 0x%08lx\n",
> -			       (long)sym[i].st_value);
> +				 (long)sym[i].st_value);
>  			break;
> 
>  		case SHN_LIVEPATCH:
> @@ -2454,7 +2452,7 @@ static void set_license(struct module *mod, const char *license)
> 
>  	if (!license_is_gpl_compatible(license)) {
>  		if (!test_taint(TAINT_PROPRIETARY_MODULE))
> -			pr_warn("%s: module license '%s' taints kernel.\n",
> +			pr_warn("%s: module license '%s' taints kernel\n",
>  				mod->name, license);
>  		add_taint_module(mod, TAINT_PROPRIETARY_MODULE,
>  				 LOCKDEP_NOW_UNRELIABLE);
> @@ -2717,7 +2715,7 @@ static void dynamic_debug_setup(struct module *mod, struct _ddebug *debug, unsig
>  #ifdef CONFIG_DYNAMIC_DEBUG
>  	if (ddebug_add_module(debug, num, mod->name))
>  		pr_err("dynamic debug error adding module: %s\n",
> -			debug->modname);
> +		       debug->modname);
>  #endif
>  }
> 
> @@ -2849,7 +2847,7 @@ static int check_modinfo_livepatch(struct module *mod, struct load_info *info)
>  static int check_modinfo_livepatch(struct module *mod, struct load_info *info)
>  {
>  	if (get_modinfo(info, "livepatch")) {
> -		pr_err("%s: module is marked as livepatch module, but livepatch support is disabled",
> +		pr_err("%s: module is marked as livepatch module, but livepatch support is disabled\n",
>  		       mod->name);
>  		return -ENOEXEC;
>  	}
> @@ -2863,7 +2861,7 @@ static void check_modinfo_retpoline(struct module *mod, struct load_info *info)
>  	if (retpoline_module_ok(get_modinfo(info, "retpoline")))
>  		return;
> 
> -	pr_warn("%s: loading module not compiled with retpoline compiler.\n",
> +	pr_warn("%s: loading module not compiled with retpoline compiler\n",
>  		mod->name);
>  }
> 
> @@ -3037,8 +3035,8 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
> 
>  	if (get_modinfo(info, "staging")) {
>  		add_taint_module(mod, TAINT_CRAP, LOCKDEP_STILL_OK);
> -		pr_warn("%s: module is from the staging directory, the quality "
> -			"is unknown, you have been warned.\n", mod->name);
> +		pr_warn("%s: module is from the staging directory, the quality is unknown, you have been warned\n",
> +			mod->name);
>  	}
> 
>  	err = check_modinfo_livepatch(mod, info);
> @@ -3089,8 +3087,8 @@ static int find_module_sections(struct module *mod, struct load_info *info)
>  		 * This shouldn't happen with same compiler and binutils
>  		 * building all parts of the module.
>  		 */
> -		pr_warn("%s: has both .ctors and .init_array.\n",
> -		       mod->name);
> +		pr_warn("%s: has both .ctors and .init_array\n",
> +			mod->name);
>  		return -EINVAL;
>  	}
>  #endif
> @@ -3227,7 +3225,7 @@ static int check_module_license_and_versions(struct module *mod)
>  				 LOCKDEP_NOW_UNRELIABLE);
> 
>  	if (!prev_taint && test_taint(TAINT_PROPRIETARY_MODULE))
> -		pr_warn("%s: module license taints kernel.\n", mod->name);
> +		pr_warn("%s: module license taints kernel\n", mod->name);
> 
>  #ifdef CONFIG_MODVERSIONS
>  	if ((mod->num_syms && !mod->crcs)
> @@ -3459,8 +3457,7 @@ static noinline int do_init_module(struct module *mod)
>  		goto fail_free_freeinit;
>  	}
>  	if (ret > 0) {
> -		pr_warn("%s: '%s'->init suspiciously returned %d, it should "
> -			"follow 0/-E convention\n"
> +		pr_warn("%s: '%s'->init suspiciously returned %d, it should follow 0/-E convention\n"
>  			"%s: loading module anyway...\n",
>  			__func__, mod->name, ret, __func__);
>  		dump_stack();
> @@ -3686,9 +3683,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
>  #ifdef CONFIG_MODULE_SIG
>  	mod->sig_ok = info->sig_ok;
>  	if (!mod->sig_ok) {
> -		pr_notice_once("%s: module verification failed: signature "
> -			       "and/or required key missing - tainting "
> -			       "kernel\n", mod->name);
> +		pr_notice_once("%s: module verification failed: signature and/or required key missing - tainting kernel\n",
> +			       mod->name);
>  		add_taint_module(mod, TAINT_UNSIGNED_MODULE, LOCKDEP_STILL_OK);
>  	}
>  #endif
> @@ -3763,7 +3759,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
>  		goto coming_cleanup;
>  	} else if (after_dashes) {
>  		pr_warn("%s: parameters '%s' after `--' ignored\n",
> -		       mod->name, after_dashes);
> +			mod->name, after_dashes);
>  	}
> 
>  	/* Link in to sysfs. */
> @@ -3843,8 +3839,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
>  	if (err)
>  		return err;
> 
> -	pr_debug("init_module: umod=%p, len=%lu, uargs=%p\n",
> -	       umod, len, uargs);
> +	pr_debug("init_module: umod=%p, len=%lu, uargs=%p\n", umod, len, uargs);
> 
>  	err = copy_module_from_user(umod, len, &info);
>  	if (err)
> diff --git a/kernel/panic.c b/kernel/panic.c
> index 42e487488554..e34631818bb7 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -8,6 +8,9 @@
>   * This function is used through-out the kernel (including mm and fs)
>   * to indicate a major problem.
>   */
> +
> +#define pr_fmt(fmt) fmt
> +
>  #include <linux/debug_locks.h>
>  #include <linux/sched/debug.h>
>  #include <linux/interrupt.h>
> diff --git a/kernel/params.c b/kernel/params.c
> index ce89f757e6da..757049bfa346 100644
> --- a/kernel/params.c
> +++ b/kernel/params.c
> @@ -15,6 +15,9 @@
>      along with this program; if not, write to the Free Software
>      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
>  */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/kernel.h>
>  #include <linux/string.h>
>  #include <linux/errno.h>
> @@ -141,8 +144,8 @@ static int parse_one(char *param,
>  			if (!val &&
>  			    !(params[i].ops->flags & KERNEL_PARAM_OPS_FL_NOARG))
>  				return -EINVAL;
> -			pr_debug("handling %s with %p\n", param,
> -				params[i].ops->set);
> +			pr_debug("handling %s with %p\n",
> +				 param, params[i].ops->set);
>  			kernel_param_lock(params[i].mod);
>  			param_check_unsafe(&params[i]);
>  			err = params[i].ops->set(val, &params[i]);
> @@ -496,8 +499,8 @@ int param_set_copystring(const char *val, const struct kernel_param *kp)
>  	const struct kparam_string *kps = kp->str;
> 
>  	if (strlen(val)+1 > kps->maxlen) {
> -		pr_err("%s: string doesn't fit in %u chars.\n",
> -		       kp->name, kps->maxlen-1);
> +		pr_err("%s: string doesn't fit in %u chars\n",
> +		       kp->name, kps->maxlen - 1);
>  		return -ENOSPC;
>  	}
>  	strcpy(kps->string, val);
> @@ -763,7 +766,7 @@ static struct module_kobject * __init locate_module_kobject(const char *name)
>  #endif
>  		if (err) {
>  			kobject_put(&mk->kobj);
> -			pr_crit("Adding module '%s' to sysfs failed (%d), the system may be unstable.\n",
> +			pr_crit("Adding module '%s' to sysfs failed (%d), the system may be unstable\n",
>  				name, err);
>  			return NULL;
>  		}
> diff --git a/kernel/pid.c b/kernel/pid.c
> index 157fe4b19971..2ddd7adfa77d 100644
> --- a/kernel/pid.c
> +++ b/kernel/pid.c
> @@ -26,6 +26,8 @@
>   *
>   */
> 
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/mm.h>
>  #include <linux/export.h>
>  #include <linux/slab.h>
> diff --git a/kernel/profile.c b/kernel/profile.c
> index 9aa2a4445b0d..e5cc8f360236 100644
> --- a/kernel/profile.c
> +++ b/kernel/profile.c
> @@ -14,6 +14,8 @@
>   *	Oracle, 2004
>   */
> 
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/export.h>
>  #include <linux/profile.h>
>  #include <linux/bootmem.h>
> diff --git a/kernel/range.c b/kernel/range.c
> index d84de6766472..e828c950d401 100644
> --- a/kernel/range.c
> +++ b/kernel/range.c
> @@ -102,7 +102,7 @@ void subtract_range(struct range *range, int az, u64 start, u64 end)
>  				range[i].start = end;
>  			} else {
>  				pr_err("%s: run out of slot in ranges\n",
> -					__func__);
> +				       __func__);
>  			}
>  			range[j].end = start;
>  			continue;
> diff --git a/kernel/relay.c b/kernel/relay.c
> index c955b10c973c..02f3790af754 100644
> --- a/kernel/relay.c
> +++ b/kernel/relay.c
> @@ -12,6 +12,9 @@
>   *
>   * This file is released under the GPL.
>   */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/errno.h>
>  #include <linux/stddef.h>
>  #include <linux/slab.h>
> @@ -527,7 +530,7 @@ int relay_prepare_cpu(unsigned int cpu)
>  			continue;
>  		buf = relay_open_buf(chan, cpu);
>  		if (!buf) {
> -			pr_err("relay: cpu %d buffer creation failed\n", cpu);
> +			pr_err("cpu %d buffer creation failed\n", cpu);
>  			mutex_unlock(&relay_channels_mutex);
>  			return -ENOMEM;
>  		}
> diff --git a/kernel/seccomp.c b/kernel/seccomp.c
> index 5386749cdd21..de696bc574b4 100644
> --- a/kernel/seccomp.c
> +++ b/kernel/seccomp.c
> @@ -14,6 +14,8 @@
>   *        of Berkeley Packet Filters/Linux Socket Filters.
>   */
> 
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/refcount.h>
>  #include <linux/audit.h>
>  #include <linux/compat.h>
> @@ -1323,7 +1325,7 @@ static int __init seccomp_sysctl_init(void)
> 
>  	hdr = register_sysctl_paths(seccomp_sysctl_path, seccomp_sysctl_table);
>  	if (!hdr)
> -		pr_warn("seccomp: sysctl registration failed\n");
> +		pr_warn("sysctl registration failed\n");
>  	else
>  		kmemleak_not_leak(hdr);
> 
> diff --git a/kernel/signal.c b/kernel/signal.c
> index 0f865d67415d..4b93feddcdcd 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -10,6 +10,8 @@
>   *		to allow signals to be sent reliably.
>   */
> 
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/slab.h>
>  #include <linux/export.h>
>  #include <linux/init.h>
> @@ -235,7 +237,7 @@ static inline void print_dropped_signal(int sig)
>  		return;
> 
>  	pr_info("%s/%d: reached RLIMIT_SIGPENDING, dropped signal %d\n",
> -				current->comm, current->pid, sig);
> +		current->comm, current->pid, sig);
>  }
> 
>  /**
> @@ -1118,10 +1120,10 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
>  static void print_fatal_signal(int signr)
>  {
>  	struct pt_regs *regs = signal_pt_regs();
> -	pr_info("potentially unexpected fatal signal %d.\n", signr);
> +	pr_info("potentially unexpected fatal signal %d\n", signr);
> 
>  #if defined(__i386__) && !defined(__arch_um__)
> -	pr_info("code at %08lx: ", regs->ip);
> +	pr_info("code at %08lx:", regs->ip);
>  	{
>  		int i;
>  		for (i = 0; i < 16; i++) {
> @@ -1129,7 +1131,7 @@ static void print_fatal_signal(int signr)
> 
>  			if (get_user(insn, (unsigned char *)(regs->ip + i)))
>  				break;
> -			pr_cont("%02x ", insn);
> +			pr_cont(" %02x", insn);
>  		}
>  	}
>  	pr_cont("\n");
> diff --git a/kernel/smpboot.c b/kernel/smpboot.c
> index 5043e7433f4b..17e129faf498 100644
> --- a/kernel/smpboot.c
> +++ b/kernel/smpboot.c
> @@ -1,6 +1,9 @@
>  /*
>   * Common SMP CPU bringup/teardown functions
>   */
> +
> +#define pr_fmt(fmt) "SMP: " fmt
> +
>  #include <linux/cpu.h>
>  #include <linux/err.h>
>  #include <linux/smp.h>
> @@ -54,7 +57,7 @@ static inline void idle_init(unsigned int cpu)
>  	if (!tsk) {
>  		tsk = fork_idle(cpu);
>  		if (IS_ERR(tsk))
> -			pr_err("SMP: fork_idle() failed for CPU %u\n", cpu);
> +			pr_err("fork_idle() failed for CPU %u\n", cpu);
>  		else
>  			per_cpu(idle_threads, cpu) = tsk;
>  	}
> diff --git a/kernel/taskstats.c b/kernel/taskstats.c
> index 4e62a4a8fa91..8973cb0a1eab 100644
> --- a/kernel/taskstats.c
> +++ b/kernel/taskstats.c
> @@ -16,6 +16,8 @@
>   *
>   */
> 
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/kernel.h>
>  #include <linux/taskstats_kern.h>
>  #include <linux/tsacct_kern.h>
> @@ -690,7 +692,7 @@ static int __init taskstats_init(void)
>  		return rc;
> 
>  	family_registered = 1;
> -	pr_info("registered taskstats version %d\n", TASKSTATS_GENL_VERSION);
> +	pr_info("registered version %d\n", TASKSTATS_GENL_VERSION);
>  	return 0;
>  }
> 
> diff --git a/kernel/torture.c b/kernel/torture.c
> index 3de1efbecd6a..da4f95c11bf9 100644
> --- a/kernel/torture.c
> +++ b/kernel/torture.c
> @@ -20,6 +20,9 @@
>   * Author: Paul E. McKenney <paulmck@us.ibm.com>
>   *	Based on kernel/rcu/torture.c.
>   */
> +
> +#define pr_fmt(fmt) fmt
> +
>  #include <linux/types.h>
>  #include <linux/kernel.h>
>  #include <linux/init.h>
> @@ -99,8 +102,7 @@ bool torture_offline(int cpu, long *n_offl_attempts, long *n_offl_successes,
>  		return false;
> 
>  	if (verbose)
> -		pr_alert("%s" TORTURE_FLAG
> -			 "torture_onoff task: offlining %d\n",
> +		pr_alert("%s" TORTURE_FLAG "torture_onoff task: offlining %d\n",
>  			 torture_type, cpu);
>  	starttime = jiffies;
>  	(*n_offl_attempts)++;
> diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
> index 1e37da2e0c25..d4753ff47738 100644
> --- a/kernel/tracepoint.c
> +++ b/kernel/tracepoint.c
> @@ -15,6 +15,9 @@
>   * along with this program; if not, write to the Free Software
>   * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
>   */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
>  #include <linux/module.h>
>  #include <linux/mutex.h>
>  #include <linux/types.h>
> diff --git a/kernel/workqueue.c b/kernel/workqueue.c
> index ca7959be8aaa..7f1f75abcf7c 100644
> --- a/kernel/workqueue.c
> +++ b/kernel/workqueue.c
> @@ -24,6 +24,8 @@
>   * Please read Documentation/core-api/workqueue.rst for details.
>   */
> 
> +#define pr_fmt(fmt) fmt
> +
>  #include <linux/export.h>
>  #include <linux/kernel.h>
>  #include <linux/sched.h>
> -- 
> 2.15.0
>