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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194Thomas Gleixner2019-05-301-1/+1
| | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): license terms gnu general public license gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* caif: fix a signedness bug in cfpkt_iterate()Dan Carpenter2015-02-201-1/+1
| | | | | | | | | | | | | | | The cfpkt_iterate() function can return -EPROTO on error, but the function is a u16 so the negative value gets truncated to a positive unsigned short. This causes a static checker warning. The only caller which might care is cffrml_receive(), when it's checking the frame checksum. I modified cffrml_receive() so that it never says -EPROTO is a valid checksum. Also this isn't ever going to be inlined so I removed the "inline". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Remove my bouncing email address.sjur.brandeland@stericsson.com2013-04-231-1/+1
| | | | | | | | | | Remove my soon bouncing email address. Also remove the "Contact:" line in file header. The MAINTAINERS file is a better place to find the contact person anyway. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* CAIF: fix indentation for function argumentsSilviu-Mihai Popescu2013-03-071-2/+2
| | | | | | | | This lines up function arguments on second and subsequent lines at the first column after the openning parenthesis of the first line. Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* percpu: Remove irqsafe_cpu_xxx variantsChristoph Lameter2011-12-221-2/+2
| | | | | | | | | | | | | | | | | We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. -tj: This is part of on-going percpu API cleanup. For detailed discussion of the subject, please refer to the following thread. http://thread.gmane.org/gmane.linux.kernel/1222078 Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org> LKML-Reference: <alpine.DEB.2.00.1112221154380.11787@router.home>
* caif: fix endian conversion in cffrml_transmit()Dan Carpenter2011-11-211-5/+6
| | | | | | | | | | | The "tmp" variable here is used to store the result of cpu_to_le16() so it should be an __le16 instead of an int. We want the high bits set and the current code works on little endian systems but not on big endian systems. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Remove OOM messages, use kzallocJoe Perches2011-08-281-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* caif: Handle dev_queue_xmit errors.sjur.brandeland@stericsson.com2011-05-151-2/+15
| | | | | | | | | Do proper handling of dev_queue_xmit errors in order to avoid double free of skb and leaks in error conditions. In cfctrl pending requests are removed when CAIF Link layer goes down. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Add ref-count to framing layersjur.brandeland@stericsson.com2011-05-151-0/+31
| | | | | | | | | Introduce Per-cpu reference for lower part of CAIF Stack. Before freeing payload is disabled, synchronize_rcu() is called, and then ref-count verified to be zero. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Use rcu_read_lock in CAIF mux layer.sjur.brandeland@stericsson.com2011-05-151-0/+8
| | | | | | | | | Replace spin_lock with rcu_read_lock when accessing lists to layers and cache. While packets are in flight rcu_read_lock should not be held, instead ref-counters are used in combination with RCU. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Don't resend if dev_queue_xmit fails.Sjur Brændeland2011-04-121-7/+1
| | | | | | | | | If CAIF Link Layer returns an error, we no longer try to re-build the CAIF packet and resend it. Instead, we simply return any transmission errors to the socket client. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/caif: Use pr_fmtJoe Perches2010-09-071-6/+8
| | | | | | | | | | | | | | | 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>
* net-caif: add CAIF core protocol stackSjur Braendeland2010-03-311-0/+151
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>