tree b76237fc705f0b599103fa3bb50e73d8b3e17361
parent c463c0f037f2d83aea54415ed7c61deb0b90333b
author Thomas Gleixner <tglx@linutronix.de> 1531561025 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1532506707 +0200

seccomp: Move speculation migitation control to arch code

commit 8bf37d8c067bb7eb8e7c381bdadf9bd89182b6bc upstream

The migitation control is simpler to implement in architecture code as it
avoids the extra function call to check the mode. Aside of that having an
explicit seccomp enabled mode in the architecture mitigations would require
even more workarounds.

Move it into architecture code and provide a weak function in the seccomp
code. Remove the 'which' argument as this allows the architecture to decide
which mitigations are relevant for seccomp.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Srivatsa S. Bhat <srivatsa@csail.mit.edu>
Reviewed-by: Matt Helsley (VMware) <matt.helsley@gmail.com>
Reviewed-by: Alexey Makhalov <amakhalov@vmware.com>
Reviewed-by: Bo Gan <ganb@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>