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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-04-24 08:23:54 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-05-07 21:12:41 +0200 |
| commit | 4253b0e0627ee3461e64c2495c616f1c8f6b127b (patch) | |
| tree | 3021ba22fe63f5844c30591396a017d8d5dba9e4 /arch/s390/kernel/Makefile | |
| parent | s390/kernel: use expoline for indirect branches (diff) | |
| download | linux-dev-4253b0e0627ee3461e64c2495c616f1c8f6b127b.tar.xz linux-dev-4253b0e0627ee3461e64c2495c616f1c8f6b127b.zip | |
s390: move spectre sysfs attribute code
The nospec-branch.c file is compiled without the gcc options to
generate expoline thunks. The return branch of the sysfs show
functions cpu_show_spectre_v1 and cpu_show_spectre_v2 is an indirect
branch as well. These need to be compiled with expolines.
Move the sysfs functions for spectre reporting to a separate file
and loose an '.' for one of the messages.
Cc: stable@vger.kernel.org # 4.16
Fixes: d424986f1d ("s390: add sysfs attributes for spectre")
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/Makefile')
| -rw-r--r-- | arch/s390/kernel/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 84ea6225efb4..f92dd8ed3884 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -65,6 +65,7 @@ obj-y += nospec-branch.o extra-y += head.o head64.o vmlinux.lds +obj-$(CONFIG_SYSFS) += nospec-sysfs.o CFLAGS_REMOVE_nospec-branch.o += $(CC_FLAGS_EXPOLINE) obj-$(CONFIG_MODULES) += module.o |