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028fb19c6b
linux/net/dsa
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Leon Romanovsky 028fb19c6b netlink: provide an ability to set default extack message 
In netdev common pattern, extack pointer is forwarded to the drivers
to be filled with error message. However, the caller can easily
overwrite the filled message.

Instead of adding multiple "if (!extack->_msg)" checks before any
NL_SET_ERR_MSG() call, which appears after call to the driver, let's
add new macro to common code.

[1] https://lore.kernel.org/all/Y9Irgrgf3uxOjwUm@unreal
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/6993fac557a40a1973dfa0095107c3d03d40bec1.1675171790.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-01 21:04:09 -08:00
..
devlink.c net: dsa: move rest of devlink setup/teardown to devlink.c 2022-11-22 20:41:47 -08:00
devlink.h net: dsa: move rest of devlink setup/teardown to devlink.c 2022-11-22 20:41:47 -08:00
dsa.c net: dsa: kill off dsa_priv.h 2022-11-22 20:41:54 -08:00
dsa.h net: dsa: rename dsa2.c back into dsa.c and create its header 2022-11-22 20:41:53 -08:00
Kconfig net: dsa: modularize DSA_TAG_PROTO_NONE 2022-11-22 20:41:45 -08:00
Makefile net: dsa: rename dsa2.c back into dsa.c and create its header 2022-11-22 20:41:53 -08:00
master.c netlink: provide an ability to set default extack message 2023-02-01 21:04:09 -08:00
master.h net: dsa: move headers exported by master.c to master.h 2022-11-22 20:41:49 -08:00
netlink.c net: dsa: kill off dsa_priv.h 2022-11-22 20:41:54 -08:00
netlink.h net: dsa: kill off dsa_priv.h 2022-11-22 20:41:54 -08:00
port.c net: dsa: move tag_8021q headers to their proper place 2022-11-22 20:41:53 -08:00
port.h net: dsa: move headers exported by port.c to port.h 2022-11-22 20:41:48 -08:00
slave.c netlink: provide an ability to set default extack message 2023-02-01 21:04:09 -08:00
slave.h net: dsa: move headers exported by slave.c to slave.h 2022-11-22 20:41:49 -08:00
switch.c net: dsa: kill off dsa_priv.h 2022-11-22 20:41:54 -08:00
switch.h net: dsa: move notifier definitions to switch.h 2022-11-22 20:41:52 -08:00
tag_8021q.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-13 09:49:29 +01:00
tag_8021q.h net: dsa: move tag_8021q headers to their proper place 2022-11-22 20:41:53 -08:00
tag_ar9331.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_brcm.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_dsa.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_gswip.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_hellcreek.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-08 18:19:59 -08:00
tag_ksz.c net: dsa: microchip: enable port queues for tc mqprio 2023-01-23 22:12:35 -08:00
tag_lan9303.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_mtk.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_none.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_ocelot_8021q.c net: dsa: move tag_8021q headers to their proper place 2022-11-22 20:41:53 -08:00
tag_ocelot.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_qca.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_rtl4_a.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_rtl8_4.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_rzn1_a5psw.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_sja1105.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-08 18:19:59 -08:00
tag_trailer.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag_xrs700x.c net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00
tag.c net: dsa: don't call ptp_classify_raw() if switch doesn't provide RX timestamping 2022-12-12 15:03:21 -08:00
tag.h net: dsa: move tagging protocol code to tag.{c,h} 2022-11-22 20:41:50 -08:00