LKML Archive on lore.kernel.org
 help / color / Atom feed
* [PATCH] lib: use correct format string for find-bit tests
@ 2017-11-13 13:55 Arnd Bergmann
  2017-11-14  9:45 ` Yury Norov
  0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2017-11-13 13:55 UTC (permalink / raw)
  To: Yury Norov
  Cc: Arnd Bergmann, Stephen Rothwell, Andrew Morton, Clement Courbet,
	linux-kernel

The cycles_t definition is architecture specific, which causes
a link error on all architectures that use a 'long long' or 'int'
type for it:

lib/test_find_bit.c: In function 'test_find_last_bit':
include/linux/kern_levels.h:5:18: error: format '%ld' expects argument of type 'long int', but argument 2 has type 'cycles_t {aka long long unsigned int}' [-Werror=format=]

This adds an explicit cast to 'u64' for it, which lets us use
'%llu' everywhere.

Fixes: 09588b1f1d58 ("lib: test module for find_*_bit() functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 lib/test_find_bit.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/lib/test_find_bit.c b/lib/test_find_bit.c
index f3b4d34e11dd..f4394a36f9aa 100644
--- a/lib/test_find_bit.c
+++ b/lib/test_find_bit.c
@@ -51,7 +51,8 @@ static int __init test_find_first_bit(void *bitmap, unsigned long len)
 		__clear_bit(i, bitmap);
 	}
 	cycles = get_cycles() - cycles;
-	pr_err("find_first_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
+	pr_err("find_first_bit:\t\t%llu cycles,\t%ld iterations\n",
+	       (u64)cycles, cnt);
 
 	return 0;
 }
@@ -65,7 +66,8 @@ static int __init test_find_next_bit(const void *bitmap, unsigned long len)
 	for (cnt = i = 0; i < BITMAP_LEN; cnt++)
 		i = find_next_bit(bitmap, BITMAP_LEN, i) + 1;
 	cycles = get_cycles() - cycles;
-	pr_err("find_next_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
+	pr_err("find_next_bit:\t\t%llu cycles,\t%ld iterations\n",
+	       (u64)cycles, cnt);
 
 	return 0;
 }
@@ -79,8 +81,8 @@ static int __init test_find_next_zero_bit(const void *bitmap, unsigned long len)
 	for (cnt = i = 0; i < BITMAP_LEN; cnt++)
 		i = find_next_zero_bit(bitmap, len, i) + 1;
 	cycles = get_cycles() - cycles;
-	pr_err("find_next_zero_bit:\t%ld cycles,\t%ld iterations\n",
-								cycles, cnt);
+	pr_err("find_next_zero_bit:\t%llu cycles,\t%ld iterations\n",
+	       (u64)cycles, cnt);
 
 	return 0;
 }
@@ -99,7 +101,8 @@ static int __init test_find_last_bit(const void *bitmap, unsigned long len)
 		len = l;
 	} while (len);
 	cycles = get_cycles() - cycles;
-	pr_err("find_last_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
+	pr_err("find_last_bit:\t\t%llu cycles,\t%ld iterations\n",
+	       (u64)cycles, cnt);
 
 	return 0;
 }
-- 
2.9.0

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, back to index

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-13 13:55 [PATCH] lib: use correct format string for find-bit tests Arnd Bergmann
2017-11-14  9:45 ` Yury Norov

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git