# # IEC 62439-3 High-availability Seamless Redundancy # config HSR tristate "High-availability Seamless Redundancy (HSR)" ---help--- If you say Y here, then your Linux box will be able to act as a DANH ("Doubly attached node implementing HSR"). For this to work, your Linux box needs (at least) two physical Ethernet interfaces, and it must be connected as a node in a ring network together with other HSR capable nodes. All Ethernet frames sent over the hsr device will be sent in both directions on the ring (over both slave ports), giving a redundant, instant fail-over network. Each HSR node in the ring acts like a bridge for HSR frames, but filters frames that have been forwarded earlier. This code is a "best effort" to comply with the HSR standard as described in IEC 62439-3:2010 (HSRv0) and IEC 62439-3:2012 (HSRv1), but no compliancy tests have been made. Use iproute2 to select the version you desire. You need to perform any and all necessary tests yourself before relying on this code in a safety critical system! If unsure, say N. >master net-next plumbingsTobias Klauser
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authorThomas Gleixner <tglx@linutronix.de>2016-12-26 22:58:20 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-26 17:30:24 -0800
commit0dad3a3014a0b9e72521ff44f17e0054f43dcdea (patch)
tree6122a01208f56efd2766697a265ba559cbbbb452 /net/rxrpc
parentb9d9d6911bd5c370ad4b3aa57d758c093d17aed5 (diff)
x86/mce/AMD: Make the init code more robust
If mce_device_init() fails then the mce device pointer is NULL and the AMD mce code happily dereferences it. Add a sanity check. Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de> Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/rxrpc')