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linux/arch/s390
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Martin Schwidefsky 6cf09958f3 s390: correct module section names for expoline code revert 
The main linker script vmlinux.lds.S for the kernel image merges
the expoline code patch tables into two section ".nospec_call_table"
and ".nospec_return_table". This is *not* done for the modules,
there the sections retain their original names as generated by gcc:
".s390_indirect_call", ".s390_return_mem" and ".s390_return_reg".

The module_finalize code has to check for the compiler generated
section names, otherwise no code patching is done. This slows down
the module code in case of "spectre_v2=off".

Cc: stable@vger.kernel.org # 4.16
Fixes: f19fbd5ed6 ("s390: introduce execute-trampolines for branches")
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-04-23 07:57:17 +02:00
..
appldata s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
boot s390/boot: remove unused COMPILE_VERSION and ccflags-y 2018-04-16 09:10:24 +02:00
configs s390: rename default_defconfig to debug_defconfig 2018-04-16 10:29:35 +02:00
crypto s390/crypto: Adjust s390 aes and paes cipher priorities 2018-04-10 07:38:54 +02:00
hypfs hypfs_kill_super(): deal with failed allocations 2018-04-15 23:48:04 -04:00
include s390: update sampling tag after task pid change 2018-04-23 07:57:17 +02:00
kernel s390: correct module section names for expoline code revert 2018-04-23 07:57:17 +02:00
kvm KVM: s390: provide counters for all interrupt injects/delivery 2018-03-14 19:21:18 +00:00
lib s390: fix preemption race in disable_sacf_uaccess 2017-12-15 15:05:21 +01:00
mm mm/gup.c: document return value 2018-04-13 17:10:27 -07:00
net bpf, s390x: remove obsolete exception handling from div/mod 2018-01-26 16:42:06 -08:00
numa s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci s390/pci: handle insufficient resources during dma tlb flush 2017-12-13 10:51:33 +01:00
purgatory s390/kexec_file: add generated files to .gitignore 2018-04-16 09:10:23 +02:00
tools KVM: s390: implement CPU model only facilities 2018-03-09 09:44:17 +00:00
defconfig s390: update defconfig 2018-04-16 10:29:34 +02:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig s390: add support for IBM z14 Model ZR1 2018-04-16 09:10:24 +02:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile s390: add automatic detection of the spectre defense 2018-03-28 08:38:24 +02:00