linux-kernel - [tip:timers/core] tick-broadcast: Fix the printing of broadcast masks

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Date:	Tue, 5 May 2015 01:39:35 -0700
From:	tip-bot for Preeti U Murthy <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	preeti@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	hpa@...or.com, mingo@...nel.org, tglx@...utronix.de
Subject: [tip:timers/core] tick-broadcast:
  Fix the printing of broadcast masks

Commit-ID:  1ef09cd713c90781b683a0b4e0a874803c172b1d
Gitweb:     http://git.kernel.org/tip/1ef09cd713c90781b683a0b4e0a874803c172b1d
Author:     Preeti U Murthy <preeti@...ux.vnet.ibm.com>
AuthorDate: Tue, 28 Apr 2015 14:15:20 +0530
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 5 May 2015 10:35:58 +0200

tick-broadcast: Fix the printing of broadcast masks

Today the number of bits of the broadcast masks that is output into
/proc/timer_list is sizeof(unsigned long). This means that on machines
with a larger number of CPUs, the bitmasks of CPUs beyond this range do
not appear.

Fix this by using bitmap printing through "%*pb" instead, so as to
output the broadcast masks for the range of nr_cpu_ids into
/proc/timer_list.

Signed-off-by: Preeti U Murthy <preeti@...ux.vnet.ibm.com>
Cc: peterz@...radead.org
Cc: linuxppc-dev@...abs.org
Cc: john.stultz@...aro.org
Link: http://lkml.kernel.org/r/20150428084520.3314.62668.stgit@preeti.in.ibm.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 kernel/time/timer_list.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 66f39bb..18b074b 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -276,11 +276,11 @@ static void timer_list_show_tickdevices_header(struct seq_file *m)
 {
 #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
 	print_tickdevice(m, tick_get_broadcast_device(), -1);
-	SEQ_printf(m, "tick_broadcast_mask: %08lx\n",
-		   cpumask_bits(tick_get_broadcast_mask())[0]);
+	SEQ_printf(m, "tick_broadcast_mask: %*pb\n",
+		   cpumask_pr_args(tick_get_broadcast_mask()));
 #ifdef CONFIG_TICK_ONESHOT
-	SEQ_printf(m, "tick_broadcast_oneshot_mask: %08lx\n",
-		   cpumask_bits(tick_get_broadcast_oneshot_mask())[0]);
+	SEQ_printf(m, "tick_broadcast_oneshot_mask: %*pb\n",
+		   cpumask_pr_args(tick_get_broadcast_oneshot_mask()));
 #endif
 	SEQ_printf(m, "\n");
 #endif
--
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