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* net: Use packed structures for networkingDenis Pynkin2018-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | PXE boot is broken with GCC 7.1 due option '-fstore-merging' enabled by default for '-O2': BOOTP broadcast 1 data abort pc : [<8ff8bb30>] lr : [<00004f1f>] reloc pc : [<17832b30>] lr : [<878abf1f>] sp : 8f558bc0 ip : 00000000 fp : 8ffef5a4 r10: 8ffed248 r9 : 8f558ee0 r8 : 8ffef594 r7 : 0000000e r6 : 8ffed700 r5 : 00000000 r4 : 8ffed74e r3 : 00060101 r2 : 8ffed230 r1 : 8ffed706 r0 : 00000ddd Flags: nzcv IRQs off FIQs off Mode SVC_32 Resetting CPU ... Core reason is usage of structures for network headers without packed attribute. Reviewed-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> (cherry picked from commit 704f3acfcf55343043bbed01c5fb0a0094a68e8a) Signed-off-by: Joel Stanley <joel@jms.id.au>
* net: cosmetic: Clean up DNS variables and functionsJoe Hershberger2015-04-181-1/+1
| | | | | | | | Make a thorough pass through all variables and function names contained within dns.c and remove CamelCase and improve naming. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-241-4/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* Add DNS supportRobin Getz2009-07-221-0/+39
On 04 Oct 2008 Pieter posted a dns implementation for U-Boot. http://www.mail-archive.com/u-boot-users@lists.sourceforge.net/msg10216.html > > DNS can be enabled by setting CFG_CMD_DNS. After performing a query, > the serverip environment var is updated. > > Probably there are some cosmetic issues with the patch. Unfortunatly I > do not have the time to correct these. So if anybody else likes DNS > support in U-Boot and has the time, feel free to patch it in the main tree. Here it is again - slightly modified & smaller: - update to 2009-06 (Pieter's patch was for U-Boot 1.2.0) - README.dns is added - syntax is changed (now takes a third option, the env var to store the result in) - add a random port() function in net.c - sort Makefile in ./net/Makefile - dns just returns unless a env var is given - run through checkpatch, and clean up style issues - remove packet from stack - cleaned up some comments - failure returns much faster (if server responds, don't wait for timeout) - use built in functions (memcpy) rather than byte copy. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Pieter Voorthuijsen <pieter.voorthuijsen@prodrive.nl> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
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