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27fc467e74
zephyr/include
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Johan Hedberg 27fc467e74 net: buf: Allow NULL head pointer when inserting to frag list 
To avoid extra logic in code that creates net_buf fragment lists, make
it possible to pass a NULL pointer as the head net_buf when there are
no previous buffers. Before this change the code would look like this:

	if (head) {
		net_buf_frag_add(head, buf);
	} else {
		head = net_buf_ref(buf);
	}

After the patch the code can simply do:

	head = net_buf_frag_add(head, buf);

This will then do the right thing regardless if head is NULL or
non-NULL.

Change-Id: I300394242e2e243ed3839b25629ec816dd98c148
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-09-30 15:07:32 +00:00
..
arch x86: interrupts: optimize and simplify IRQ stubs 2016-09-28 20:28:06 +00:00
bluetooth Bluetooth: Add support for reading encryption key size for BR/EDR 2016-09-14 06:01:55 +00:00
display
drivers unified: Remove unused _nano_get_earliest_deadline() 2016-09-23 19:53:22 +00:00
fs fs: Adds the glue layer for the Fat FS module 2016-08-01 16:47:33 -07:00
microkernel microkernel: remove deprecated task IRQs 2016-09-06 16:15:59 +00:00
misc unified/object_tracing: disable object tracing in unified kernel 2016-09-13 17:12:55 -04:00
net net: buf: Allow NULL head pointer when inserting to frag list 2016-09-30 15:07:32 +00:00
toolchain unified: Conditionally define __printf_like() macro 2016-09-20 11:43:40 -04:00
usb usb: Add Bluetooth class codes definitions 2016-08-10 15:27:35 +00:00
adc.h
aio_comparator.h
atomic.h atomic: fix bug in ATOMIC_INIT() 2016-09-13 17:12:55 -04:00
cache.h
clock_control.h
counter.h
device.h device: Make device_get_binding() const correct 2016-09-29 13:46:43 +00:00
dma.h doc: fix warnings about undefined ref and group without end. 2016-06-22 16:44:20 -05:00
eth.h driver: ENC28J60 Ethernet SPI module 2016-08-05 20:36:44 +00:00
flash.h
fs.h fs: Add file system API to flush cache of an open file 2016-09-23 00:06:32 +00:00
gpio.h trivial: fixed typos 2016-09-17 13:47:36 +00:00
i2c.h i2c: Fix restart flag in burst read 2016-09-07 14:40:20 +00:00
init.h init.h: use a counter when naming system devices 2016-09-23 15:36:29 +00:00
ipm.h ipm.h: fix erroneous edit of documentation 2016-09-14 18:10:48 +00:00
irq_offload.h
irq.h irq: Add irq_is_enabled external interrupt API 2016-09-20 19:45:12 +00:00
kernel_version.h c++: Add extern "C" { } block to header files 2016-02-05 20:25:22 -05:00
kernel.h unified: Invoke kernel object initialization with SYS_INIT macro 2016-09-28 19:13:35 +00:00
legacy.h unified: move basic ticks-to-ms conversion to kernel.h 2016-09-23 21:39:40 +00:00
linker-defs.h nanokernel: move dataCopy() and bssZero() to common code 2016-07-08 18:23:11 +00:00
linker-tool-gcc.h
linker-tool.h
microkernel.h unified: include kernel.h via major top-level header files 2016-09-13 17:12:55 -04:00
nanokernel.h unified: include kernel.h via major top-level header files 2016-09-13 17:12:55 -04:00
pinmux.h
power.h
pwm.h drivers: pwm_shim: correct api argument inconsistency 2016-08-25 14:24:03 -07:00
rtc.h
section_tags.h
sections.h
sensor.h doc: revert unnamed union/struct workaround in favour of known-issues 2016-07-01 21:53:45 +00:00
shared_irq.h
spi.h drivers: spi: Update comment for spi config parameter 2016-08-10 15:06:23 +00:00
sw_isr_table.h
sys_clock.h
sys_io.h
toolchain.h doc: revert unnamed union/struct workaround in favour of known-issues 2016-07-01 21:53:45 +00:00
uart.h uart.h: fix path to PCI headers 2016-08-12 22:57:57 +00:00
watchdog.h
zephyr.h unified: include kernel.h via major top-level header files 2016-09-13 17:12:55 -04:00