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path: root/drivers/staging/ozwpan/ozproto.c
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2013-08-23staging: ozwpan: Fix Documentation style.Rupesh Gujare
This patch fixes Kernel Documentation style. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-22staging: ozwpan: Increment reference counter.Rupesh Gujare
Increment PD reference counter, on every timer event so that we do not loose PD object by mistake. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14staging: ozwpan: Add a blank line between functions & declarations.Rupesh Gujare
This patch adds a blank line between global declarations & functions for readability. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14staging: ozwpan: Add a blank line between declaraction and code.Rupesh Gujare
This patch adds blank line between declaration & code for readability. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12staging: ozwpan: Fix farewell report.Rupesh Gujare
This patch fix following issues reported by Dan:- 1) There is no check limiting the size to 32 and it could be up to 253 bytes. 2) Use defines instead of magic numbers. 3) The oz_farewell struct is supposed to be a variable length struct but the variable part is put in the middle. It doesn't make any sense to put the length of the variable size array after then end of the array because we can never find it again! Put the variable size array at the end. Make it a zero length array. u8 len; u8 report[0]; 4) In oz_add_farewell() we do this: f = kmalloc(sizeof(struct oz_farewell) + len - 1, GFP_ATOMIC); The "- 1" refers to sizeof(f->report) but because it was a magic number then it was missed when the sizeof(f->report) changed. 5) In [patch 6/6] we set the ->len member. But because it is at the end of a variable length array with no limit check the remote attacker can just rewrite it using the memcpy() on the next line. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-02staging: ozwpan: Set farewell report length.Rupesh Gujare
Fixes a bug where we were not setting length field causing wrong report size to be copied. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-02staging: ozwpan: Use kernel strncmp function.Rupesh Gujare
Use kernel's strncmp() function instead of defining same within driver. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-02staging: ozwpan: Mark string as constRupesh Gujare
Make sure that we mark const string so that it does not get modified. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-02staging: ozwpan: Use kernel list function for managing interface list.Rupesh Gujare
Managing interface list, is easier if we use kernel list_* API than managing it on our own. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-31staging: ozwpan: High resolution timersRupesh Gujare
Current implementation assumes HZ = 1000 for calculating all internal timer intervals, which creates problem on platforms where HZ != 1000. As well we need resolution of less than 10 mSec for heartbeat calculation, this creates problem on some platforms where HZ is configured as HZ = 100, or around, which restricts us to timer interval of 10 mSec. This is particularly found on embedded devices. This patch moves on to use high resolution timers to calculate all timer intervals as it allows us to have very small resolution of timer interval, removing dependency on HZ. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-23staging: ozwpan: Remove old debug macro.Joe Perches
Remove old oz_trace & oz_trace2 macro & related header files. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-23staging: ozwpan: Replace oz_trace with oz_dbgJoe Perches
Introduce new debug macros: oz_dbg, oz_cdev_dbg, oz_pd_dbg and then replace old oz_trace & oz_trace2 with new macro. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17staging: ozwpan: remove event tracing code.Rupesh Gujare
Removes event tracing code as it can be replaced by in-kernel tracing infrastructure. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04Revert "ozwpan: replace alloc_skb with dev_alloc_skb in ozproto.c"Greg Kroah-Hartman
This reverts commit c3147965384f1a5ace685dc34e78f9bb201f357d. I shouldn't have applied it, my fault. Cc: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04Revert "ozwpan: replace kfree_skb with dev_kfree_skb in ozproto.c"Greg Kroah-Hartman
This reverts commit 5109c8a0c17cea53975ebf6dbc5403c431fd809d. I shouldn't have applied this, my fault... Cc: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-30ozwpan: replace kfree_skb with dev_kfree_skb in ozproto.cXenia Ragiadakou
This patch replaces the calls to kfree_skb with calls to dev_kfree_skb. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-30ozwpan: replace alloc_skb with dev_alloc_skb in ozproto.cXenia Ragiadakou
This patch replaces the calls to alloc_skb with calls to dev_alloc_skb. dev_alloc_skb has GFP_ATOMIC priority so the replacement does not change the code semantics. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-24staging: ozwpan: Revert last changesXenia Ragiadakou
This patch reverts the changes made by the following patches: commit id: edea341b0477ce5d53f7341f8b8cf8c91ad54ecf [PATCH 1/4] ozwpan: replace alloc_skb with dev_alloc_skb in ozpd.c commit id: b59983f525396a47cf8b28c13bbd5d5ff57859b8 [PATCH 2/4] ozwpan: replace alloc_skb with dev_alloc_skb in ozproto.c commit id: 4422a6c14d0d0bfe519ec487693f1787f64b0b90 [PATCH 3/4] ozwpan: replace kfree_skb with dev_kfree_skb in ozpd.c commit id: e241a8b61671b487e1a04b455dbd32ab965250ef [PATCH 4/4] ozwpan: replace kfree_skb with dev_kfree_skb in ozproto.c The reason of this revert is that dev_alloc_skb() is not defined to be used in the allocation of socket buffers on the transmit path but on the receive path. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-21ozwpan: replace kfree_skb with dev_kfree_skb in ozproto.cXenia Ragiadakou
This patch replaces the calls to kfree_skb with calls to dev_kfree_skb. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-21ozwpan: replace alloc_skb with dev_alloc_skb in ozproto.cXenia Ragiadakou
This patch replaces the calls to alloc_skb with calls to dev_alloc_skb. dev_alloc_skb has GFP_ATOMIC priority so the replacement does not change the code semantics. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-15staging/ozwpan: Mark read only parameters and structs as constPeter Huewe
This patch marks function parameters that are used read only as well as readonly structs (and corresponding pointers) as const. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-15staging/ozwpan: Fix NULL vs zero in ozproto.c (sparse warning)Peter Huewe
This patch fixes the warning "Using plain integer as NULL pointer", generated by sparse, by replacing the offending 0s with NULL. If the initialization with NULL was unnecessary (due to unconditional assignment before first use) it was removed. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21staging: ozwpan: Remove redundant null check before kfree in ozproto.cSachin Kamat
kfree on NULL pointer is a no-op. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-13staging: ozwpan: isoc latency for audio burstRupesh Gujare
Set audio latency. This fixes issue where audio clips heard during link outage. Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-20staging: ozwpan: kmalloc flagRupesh Gujare
Pass right flag as memory is assigned in process context. Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-20staging: ozwpan: ISOC transfer in triggered modeRupesh Gujare
This patch implements ISOC frame transfer while PD is in triggered mode. Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-02staging: ozwpan: remove debug allocatorGreg Kroah-Hartman
The kernel already has a debug allocator, no need to have one unique to a single driver. So delete it, replace with kfree, kmalloc, and, in a few places that need it, kzalloc(). Cc: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24staging: ozwpan: Added basic L2 protocol supportChris Kelly
Added the basic implementation of the L2 protocol support used to communicate with devices over the network. Signed-off-by: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>