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24f1955d1e
numam-dpdk/lib
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Georg Sauthoff 24f1955d1e net: fix aliasing in checksum computation 
That means a superfluous cast is removed and aliasing through a uint8_t
pointer is eliminated. NB: The C standard specifies that a unsigned char
pointer may alias while the C standard doesn't include such requirement
for uint8_t pointers.

Also simplified the loop since a modern C compiler can speed up (i.e.
auto-vectorize) it in a similar way. For example, GCC auto-vectorizes it
for Haswell using AVX registers while halving the number of instructions
in the generated code.

Fixes: 6006818cfb ("net: new checksum functions")
Fixes: e079655c41 ("net: fix build with gcc 4.4.7 and strict aliasing")
Cc: stable@dpdk.org

Signed-off-by: Georg Sauthoff <mail@gms.tf>
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2021-10-18 18:15:58 +02:00
..
acl lib: remove C++ include guard from private headers 2021-09-22 22:00:17 +02:00
bbdev bbdev: add device info for data endianness 2021-10-18 20:11:16 +02:00
bitratestats bitrate: promote free function to stable 2021-10-01 15:31:47 +02:00
bpf lib: remove C++ include guard from private headers 2021-09-22 22:00:17 +02:00
cfgfile version: 21.11-rc0 2021-08-17 08:37:52 +02:00
cmdline version: 21.11-rc0 2021-08-17 08:37:52 +02:00
compressdev log: register with standardized names 2021-05-11 15:17:55 +02:00
cryptodev cryptodev: fix multi-segment raw vector processing 2021-10-17 19:32:13 +02:00
distributor lib: remove C++ include guard from private headers 2021-09-22 22:00:17 +02:00
dmadev dmadev: add flag for error handling support 2021-10-18 11:19:27 +02:00
eal mcslock: use WFE in lock for aarch64 2021-10-20 08:22:41 +02:00
efd efd: allow more CPU sockets in table creation 2021-10-01 16:33:20 +02:00
ethdev ethdev: add API to get device configuration 2021-10-15 13:27:05 +02:00
eventdev ethdev: hide internal structures 2021-10-13 22:14:59 +02:00
fib sort symbol maps 2021-10-05 17:03:37 +02:00
flow_classify flow_classify: fix leaking rules on delete 2021-06-24 15:34:45 +02:00
graph eal: save error in string copy 2021-07-05 15:11:30 +02:00
gro net: rename Ethernet header fields 2021-10-08 14:58:11 +02:00
gso version: 21.11-rc0 2021-08-17 08:37:52 +02:00
hash eal: remove sys/queue.h from public headers 2021-10-01 13:09:43 +02:00
ip_frag ip_frag: fix fragmenting IPv4 fragment 2021-10-14 08:52:34 +02:00
ipsec cryptodev: rename field in vector struct 2021-10-17 19:31:15 +02:00
jobstats version: 21.11-rc0 2021-08-17 08:37:52 +02:00
kni version: 21.11-rc0 2021-08-17 08:37:52 +02:00
kvargs kvargs: fix comments style 2021-09-30 17:38:13 +02:00
latencystats version: 21.11-rc0 2021-08-17 08:37:52 +02:00
lpm version: 21.11-rc0 2021-08-17 08:37:52 +02:00
mbuf mbuf: add IPsec ESP tunnel type 2021-10-17 14:07:03 +02:00
member version: 21.11-rc0 2021-08-17 08:37:52 +02:00
mempool mempool: accept user flags only 2021-10-20 10:03:55 +02:00
meter version: 21.11-rc0 2021-08-17 08:37:52 +02:00
metrics ethdev: hide internal structures 2021-10-13 22:14:59 +02:00
net net: fix aliasing in checksum computation 2021-10-18 18:15:58 +02:00
node lib: remove C++ include guard from private headers 2021-09-22 22:00:17 +02:00
pci eal: remove sys/queue.h from public headers 2021-10-01 13:09:43 +02:00
pdump mempool: add namespace to flags 2021-10-20 10:00:16 +02:00
pipeline net: rename Ethernet header fields 2021-10-08 14:58:11 +02:00
port version: 21.11-rc0 2021-08-17 08:37:52 +02:00
power lib: remove C++ include guard from private headers 2021-09-22 22:00:17 +02:00
rawdev version: 21.11-rc0 2021-08-17 08:37:52 +02:00
rcu lib: remove C++ include guard from private headers 2021-09-22 22:00:17 +02:00
regexdev lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
reorder version: 21.11-rc0 2021-08-17 08:37:52 +02:00
rib sort symbol maps 2021-10-05 17:03:37 +02:00
ring ring: promote new sync modes and peek to stable 2021-10-05 10:09:15 +02:00
sched sched: get 64-bit greatest common divisor 2021-09-27 17:24:16 +02:00
security security: add reserved bit fields 2021-10-18 20:12:19 +02:00
stack stack: remove unneeded atomic header include 2021-10-19 17:15:10 +02:00
table eal: remove sys/queue.h from public headers 2021-10-01 13:09:43 +02:00
telemetry telemetry: fix socket path conflicts for in-memory mode 2021-10-14 20:31:10 +02:00
timer version: 21.11-rc0 2021-08-17 08:37:52 +02:00
vhost mempool: add namespace to flags 2021-10-20 10:00:16 +02:00
meson.build dmadev: introduce DMA device library 2021-10-17 20:49:57 +02:00