Kill faulty checks on flow-off leading to connection drop at race conditions.
caif_socket checks for flow-on before transmitting and goes to sleep or
return -EAGAIN upon flow stop. Remove faulty subsequent checks on flow-off
leading to connection drop. Also fix memory leaks on some of the errors paths.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove per site OOM messages because they duplicate
the generic mm subsystem OOM message.
Use kzalloc instead of kmalloc/memset
when next to the OOM message removals.
Reduces object size (allyesconfig ~2%)
$ size -t drivers/net/caif/built-in.o.old net/caif/built-in.o.old
text data bss dec hex filename
32297 700 8224 41221 a105 drivers/net/caif/built-in.o.old
72159 1317 20552 94028 16f4c net/caif/built-in.o.old
104456 2017 28776 135249 21051 (TOTALS)
$ size -t drivers/net/caif/built-in.o.new net/caif/built-in.o.new
text data bss dec hex filename
31975 700 8184 40859 9f9b drivers/net/caif/built-in.o.new
70748 1317 20152 92217 16839 net/caif/built-in.o.new
102723 2017 28336 133076 207d4 (TOTALS)
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of having reference counts in caif service layers,
we hook into existing refcount handling in socket layer and netdevice.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cleanup of new CAIF code.
* make local functions static
* remove code that is never used
* expand get_caif_conf() since wrapper is no longer needed
* make args to comparison functions const
* rename connect_req_to_link_param to keep exported names
consistent
Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch standardizes caif message logging prefixes.
Add #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__
Add missing "\n"s to some logging messages
Convert pr_warning to pr_warn
This changes the logging message prefix from CAIF: to caif:
for all uses but caif_socket.c and chnl_net.c. Those now use
their filename without extension.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously CAIF supported maximum transfer size of ~4050.
The transfer size is now calculated dynamically based on the
link layers mtu size.
Signed-off-by: Sjur Braendeland@stericsson.com
Signed-off-by: David S. Miller <davem@davemloft.net>
CAIF Remote File Manager may send or receive more than 4050 bytes.
Due to this The CAIF RFM service have to support segmentation.
Signed-off-by: Sjur Braendeland@stericsson.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Flow control is not used by all CAIF services.
The usage of flow control is now part of the gerneal
initialization function for CAIF Services.
Signed-off-by: Sjur Braendeland@stericsson.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Discovered bugs when injecting slab allocation failures.
Add checks on all memory allocation.
Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changes:
o Added functions cfsrvl_get and cfsrvl_put.
o Added support release_client to use by socket and net device.
o Increase reference counting for in-flight packets from cfmuxl
Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CAIF generic protocol implementation. This layer is
somewhat generic in order to be able to use and test it outside
the Linux Kernel.
cfctrl.c - CAIF control protocol layer
cfdbgl.c - CAIF debug protocol layer
cfdgml.c - CAIF datagram protocol layer
cffrml.c - CAIF framing protocol layer
cfmuxl.c - CAIF mux protocol layer
cfrfml.c - CAIF remote file manager protocol layer
cfserl.c - CAIF serial (fragmentation) protocol layer
cfsrvl.c - CAIF generic service layer functions
cfutill.c - CAIF utility protocol layer
cfveil.c - CAIF AT protocol layer
cfvidl.c - CAIF video protocol layer
Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Tarnyagin