projects / openwrt / staging / blogic.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: b1940cd) | patch
ppc/kvm: Replace ACCESS_ONCE with READ_ONCE
authorChristian Borntraeger <borntraeger@de.ibm.com>
Tue, 6 Jan 2015 21:41:46 +0000 (22:41 +0100)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Mon, 19 Jan 2015 13:14:07 +0000 (14:14 +0100)
commit5ee07612e9e20817bb99256ab6cf1400fd5aa270
tree40ebd74b5149be78c6dca4e384f25709350874a3tree | snapshot
parentb1940cd21c0f4abdce101253e860feff547291b0commit | diff
ppc/kvm: Replace ACCESS_ONCE with READ_ONCE

ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)

Change the ppc/kvm code to replace ACCESS_ONCE with READ_ONCE.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
arch/powerpc/kvm/book3s_hv_rm_xics.c diff | blob | history
arch/powerpc/kvm/book3s_xics.c diff | blob | history
John Crispins staging tree