Bluetooth: Fix uuid output in debugfs
The uuid should be printed in the CPU endianness and not in little-endian.
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 55cceee..23b4e24 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -2,6 +2,7 @@
#include <linux/debugfs.h>
#include <linux/module.h>
+#include <asm/unaligned.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -461,19 +462,18 @@
static void print_bt_uuid(struct seq_file *f, u8 *uuid)
{
- __be32 data0, data4;
- __be16 data1, data2, data3, data5;
+ u32 data0, data5;
+ u16 data1, data2, data3, data4;
- memcpy(&data0, &uuid[0], 4);
- memcpy(&data1, &uuid[4], 2);
- memcpy(&data2, &uuid[6], 2);
- memcpy(&data3, &uuid[8], 2);
- memcpy(&data4, &uuid[10], 4);
- memcpy(&data5, &uuid[14], 2);
+ data5 = get_unaligned_le32(uuid);
+ data4 = get_unaligned_le16(uuid + 4);
+ data3 = get_unaligned_le16(uuid + 6);
+ data2 = get_unaligned_le16(uuid + 8);
+ data1 = get_unaligned_le16(uuid + 10);
+ data0 = get_unaligned_le32(uuid + 12);
- seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
- ntohl(data0), ntohs(data1), ntohs(data2), ntohs(data3),
- ntohl(data4), ntohs(data5));
+ seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.4x%.8x\n",
+ data0, data1, data2, data3, data4, data5);
}
static int uuids_show(struct seq_file *f, void *p)