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NFC: llcp: Use localy stored remote_miu value if not set at socket level

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If remote_miu value is not set in the socket (i.e. connection-less socket) the
value stored in the local is used.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Thierry Escande 2013-04-02 10:25:14 +02:00 committed by Samuel Ortiz
parent 098dafcfb4
commit 66cbfa10f3
3 changed files with 12 additions and 3 deletions
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12
net/nfc/llcp/commands.c
View file

@ -658,6 +658,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
struct nfc_llcp_local *local;
size_t frag_len = 0, remaining_len;
u8 *msg_data, *msg_ptr;
u16 remote_miu;
pr_debug("Send I frame len %zd\n", len);
@ -695,7 +696,10 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
msg_ptr = msg_data;
do {
frag_len = min_t(size_t, sock->remote_miu, remaining_len);
remote_miu = sock->remote_miu > LLCP_MAX_MIU ?
local->remote_miu : sock->remote_miu;
frag_len = min_t(size_t, remote_miu, remaining_len);
pr_debug("Fragment %zd bytes remaining %zd",
frag_len, remaining_len);
@ -734,6 +738,7 @@ int nfc_llcp_send_ui_frame(struct nfc_llcp_sock *sock, u8 ssap, u8 dsap,
struct nfc_llcp_local *local;
size_t frag_len = 0, remaining_len;
u8 *msg_ptr, *msg_data;
u16 remote_miu;
int err;
pr_debug("Send UI frame len %zd\n", len);
@ -755,7 +760,10 @@ int nfc_llcp_send_ui_frame(struct nfc_llcp_sock *sock, u8 ssap, u8 dsap,
msg_ptr = msg_data;
do {
frag_len = min_t(size_t, sock->remote_miu, remaining_len);
remote_miu = sock->remote_miu > LLCP_MAX_MIU ?
local->remote_miu : sock->remote_miu;
frag_len = min_t(size_t, remote_miu, remaining_len);
pr_debug("Fragment %zd bytes remaining %zd",
frag_len, remaining_len);

1
net/nfc/llcp/llcp.h
View file

@ -31,6 +31,7 @@ enum llcp_state {
#define LLCP_MAX_LTO 0xff
#define LLCP_MAX_RW 15
#define LLCP_MAX_MIUX 0x7ff
#define LLCP_MAX_MIU (LLCP_MAX_MIUX + 128)
#define LLCP_WKS_NUM_SAP 16
#define LLCP_SDP_NUM_SAP 16

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

@ -934,7 +934,7 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
llcp_sock->rw = LLCP_MAX_RW + 1;
llcp_sock->miux = cpu_to_be16(LLCP_MAX_MIUX + 1);
llcp_sock->remote_rw = LLCP_DEFAULT_RW;
llcp_sock->remote_miu = LLCP_DEFAULT_MIU;
llcp_sock->remote_miu = LLCP_MAX_MIU + 1;
llcp_sock->send_n = llcp_sock->send_ack_n = 0;
llcp_sock->recv_n = llcp_sock->recv_ack_n = 0;
llcp_sock->remote_ready = 1;