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authorNick Desaulniers <ndesaulniers@google.com>2018-01-03 12:39:52 -0800
committerThomas Gleixner <tglx@linutronix.de>2018-01-03 23:19:33 +0100
commit2fd9c41aea47f4ad071accf94b94f94f2c4d31eb (patch)
tree341ab7ce325f5f390affa28d968e36d423642a17
parentd7732ba55c4b6a2da339bb12589c515830cfac2c (diff)
x86/process: Define cpu_tss_rw in same section as declaration
cpu_tss_rw is declared with DECLARE_PER_CPU_PAGE_ALIGNED but then defined with DEFINE_PER_CPU_SHARED_ALIGNED leading to section mismatch warnings. Use DEFINE_PER_CPU_PAGE_ALIGNED consistently. This is necessary because it's mapped to the cpu entry area and must be page aligned. [ tglx: Massaged changelog a bit ] Fixes: 1a935bc3d4ea ("x86/entry: Move SYSENTER_stack to the beginning of struct tss_struct") Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: thomas.lendacky@amd.com Cc: Borislav Petkov <bpetkov@suse.de> Cc: tklauser@distanz.ch Cc: minipli@googlemail.com Cc: me@kylehuey.com Cc: namit@vmware.com Cc: luto@kernel.org Cc: jpoimboe@redhat.com Cc: tj@kernel.org Cc: cl@linux.com Cc: bp@suse.de Cc: thgarnie@google.com Cc: kirill.shutemov@linux.intel.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180103203954.183360-1-ndesaulniers@google.com
-rw-r--r--arch/x86/kernel/process.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 517415978409..3cb2486c47e4 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -47,7 +47,7 @@
* section. Since TSS's are completely CPU-local, we want them
* on exact cacheline boundaries, to eliminate cacheline ping-pong.
*/
-__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss_rw) = {
+__visible DEFINE_PER_CPU_PAGE_ALIGNED(struct tss_struct, cpu_tss_rw) = {
.x86_tss = {
/*
* .sp0 is only used when entering ring 0 from a lower