Re: [PATCH 4/5] Bluetooth: mgmt: Use __constant when dealing with constants

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Hi Marcel,

----- Original Message ----- From: "Marcel Holtmann" <marcel@xxxxxxxxxxxx>
To: "Syam Sidhardhan" <s.syam@xxxxxxxxxxx>
Cc: <linux-bluetooth@xxxxxxxxxxxxxxx>
Sent: Tuesday, October 23, 2012 8:16 PM
Subject: Re: [PATCH 4/5] Bluetooth: mgmt: Use __constant when dealing with constants


Hi Syam,

__constant_cpu_to_le*() is the right go here.

Signed-off-by: Syam Sidhardhan <s.syam@xxxxxxxxxxx>
---
 net/bluetooth/mgmt.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b127b88..e3bb2a7 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -222,7 +222,7 @@ static int cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status)

 hdr = (void *) skb_put(skb, sizeof(*hdr));

- hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
+ hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_STATUS);
 hdr->index = cpu_to_le16(index);
 hdr->len = cpu_to_le16(sizeof(*ev));

@@ -253,7 +253,7 @@ static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,

 hdr = (void *) skb_put(skb, sizeof(*hdr));

- hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+ hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_COMPLETE);
 hdr->index = cpu_to_le16(index);
 hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);

@@ -832,7 +832,7 @@ static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 data_len,
 if (hdev)
 hdr->index = cpu_to_le16(hdev->id);
 else
- hdr->index = cpu_to_le16(MGMT_INDEX_NONE);
+ hdr->index = __constant_cpu_to_le16(MGMT_INDEX_NONE);
 hdr->len = cpu_to_le16(data_len);

 if (data)
@@ -3570,9 +3570,11 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 ev->addr.type = link_to_bdaddr(link_type, addr_type);
 ev->rssi = rssi;
 if (cfm_name)
- ev->flags |= cpu_to_le32(MGMT_DEV_FOUND_CONFIRM_NAME);
+ ev->flags |=
+ __constant_cpu_to_le32(MGMT_DEV_FOUND_CONFIRM_NAME);
 if (!ssp)
- ev->flags |= cpu_to_le32(MGMT_DEV_FOUND_LEGACY_PAIRING);
+ ev->flags |=
+ __constant_cpu_to_le32(MGMT_DEV_FOUND_LEGACY_PAIRING);

for these ones, break the 80 chars rule. In this case that is
acceptable.


I'll correct it and send another version.

Thanks,
Syam
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