A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

NFC: Remove the rf mode parameter from the DEP link up routine

Browse source 
When calling nfc_dep_link_up, we implicitely are in initiator mode.
Which means we also can provide the general bytes as a function argument,
as all drivers will eventually request them.

Signed-off-by: Samuel Ortiz <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
This commit is contained in:
Samuel Ortiz 2012-03-05 01:03:50 +01:00 • committed by John W. Linville
commit 47807d3dbb
6 changed files with 24 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

22
net/nfc/core.c
View file

@ -181,13 +181,13 @@ error:
return rc;
}
int nfc_dep_link_up(struct nfc_dev *dev, int target_index,
u8 comm_mode, u8 rf_mode)
int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode)
{
int rc = 0;
u8 *gb;
size_t gb_len;
pr_debug("dev_name=%s comm:%d rf:%d\n",
dev_name(&dev->dev), comm_mode, rf_mode);
pr_debug("dev_name=%s comm %d\n", dev_name(&dev->dev), comm_mode);
if (!dev->ops->dep_link_up)
return -EOPNOTSUPP;
@ -204,7 +204,13 @@ int nfc_dep_link_up(struct nfc_dev *dev, int target_index,
goto error;
}
rc = dev->ops->dep_link_up(dev, target_index, comm_mode, rf_mode);
gb = nfc_llcp_general_bytes(dev, &gb_len);
if (gb_len > NFC_MAX_GT_LEN) {
rc = -EINVAL;
goto error;
}
rc = dev->ops->dep_link_up(dev, target_index, comm_mode, gb, gb_len);
error:
device_unlock(&dev->dev);
@ -367,12 +373,6 @@ int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
}
EXPORT_SYMBOL(nfc_set_remote_general_bytes);
u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, u8 *gt_len)
{
return nfc_llcp_general_bytes(dev, gt_len);
}
EXPORT_SYMBOL(nfc_get_local_general_bytes);
/**
* nfc_alloc_send_skb - allocate a skb for data exchange responses
*

2
net/nfc/llcp/llcp.c
View file

@ -281,7 +281,7 @@ void nfc_llcp_put_ssap(struct nfc_llcp_local *local, u8 ssap)
mutex_unlock(&local->sdp_lock);
}
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *general_bytes_len)
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len)
{
struct nfc_llcp_local *local;

11
net/nfc/netlink.c
View file

@ -542,13 +542,12 @@ static int nfc_genl_dep_link_up(struct sk_buff *skb, struct genl_info *info)
struct nfc_dev *dev;
int rc, tgt_idx;
u32 idx;
u8 comm, rf;
u8 comm;
pr_debug("DEP link up\n");
if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
!info->attrs[NFC_ATTR_COMM_MODE] ||
!info->attrs[NFC_ATTR_RF_MODE])
!info->attrs[NFC_ATTR_COMM_MODE])
return -EINVAL;
idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
@ -558,19 +557,15 @@ static int nfc_genl_dep_link_up(struct sk_buff *skb, struct genl_info *info)
tgt_idx = nla_get_u32(info->attrs[NFC_ATTR_TARGET_INDEX]);
comm = nla_get_u8(info->attrs[NFC_ATTR_COMM_MODE]);
rf = nla_get_u8(info->attrs[NFC_ATTR_RF_MODE]);
if (comm != NFC_COMM_ACTIVE && comm != NFC_COMM_PASSIVE)
return -EINVAL;
if (rf != NFC_RF_INITIATOR && comm != NFC_RF_TARGET)
return -EINVAL;
dev = nfc_get_device(idx);
if (!dev)
return -ENODEV;
rc = nfc_dep_link_up(dev, tgt_idx, comm, rf);
rc = nfc_dep_link_up(dev, tgt_idx, comm);
nfc_put_device(dev);

5
net/nfc/nfc.h
View file

@ -54,7 +54,7 @@ void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
int nfc_llcp_register_device(struct nfc_dev *dev);
void nfc_llcp_unregister_device(struct nfc_dev *dev);
int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *general_bytes_len);
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
int __init nfc_llcp_init(void);
void nfc_llcp_exit(void);
@ -160,8 +160,7 @@ int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
int nfc_stop_poll(struct nfc_dev *dev);
int nfc_dep_link_up(struct nfc_dev *dev, int target_idx,
u8 comm_mode, u8 rf_mode);
int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
int nfc_dep_link_down(struct nfc_dev *dev);