The code in arch/s390/crypto checks for the availability of the
'message security assist' facility on its own, either by using
module_cpu_feature_match(MSA, ...) or by checking the facility
bit during cpacf_query(). Thus setting the MSA facility bit in
gen_facilities.c as hard requirement is not necessary. We can
remove it here, so that the kernel can also run on systems that
do not provide the MSA facility yet (like the emulated environment
of QEMU, for example).
Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>
---
Note: Not sure whether I've missed something here and the facility
is urgently required somewhere else, where the code does not have
these additional checks like in arch/s390/crypto - that's why I've
marked the patch with "RFC" ... so if anybody has more insights,
please let me know!
arch/s390/tools/gen_facilities.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
index be63fbd..cfe3f76 100644
--- a/arch/s390/tools/gen_facilities.c
+++ b/arch/s390/tools/gen_facilities.c
@@ -35,7 +35,6 @@ struct facility_def {
#endif
#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
7, /* stfle */
- 17, /* message security assist */
21, /* extended-immediate facility */
25, /* store clock fast */
#endif
--
1.8.3.1
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