[PATCH kvm-unit-tests 5/8] errata: add ERRATA_FORCE

[Andrew Jones <drjones@xxxxxxxxxx>]

Provide an easy way for test runners to run all tests, even those
guarded by an erratum. Setting ERRATA_FORCE forces errata() and
errata_relaxed() to always return true. ./run_tests.sh -a is
also updated to set it.

Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
---
 lib/errata.h | 21 +++++++++++++++++++--
 run_tests.sh |  2 ++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/lib/errata.h b/lib/errata.h
index 7b089c2578ad..f3ebca2d8a6c 100644
--- a/lib/errata.h
+++ b/lib/errata.h
@@ -13,16 +13,33 @@
 #define _ERRATA_RELAXED(erratum) errata_relaxed("ERRATA_" # erratum)
 #define ERRATA_RELAXED(erratum) _ERRATA_RELAXED(erratum)
 
+static inline bool errata_force(void)
+{
+	char *s = getenv("ERRATA_FORCE");
+
+	return s && (*s == '1' || *s == 'y' || *s == 'Y');
+}
+
 static inline bool errata(const char *erratum)
 {
-	char *s = getenv(erratum);
+	char *s;
+
+	if (errata_force())
+		return true;
+
+	s = getenv(erratum);
 
 	return s && (*s == '1' || *s == 'y' || *s == 'Y');
 }
 
 static inline bool errata_relaxed(const char *erratum)
 {
-	char *s = getenv(erratum);
+	char *s;
+
+	if (errata_force())
+		return true;
+
+	s = getenv(erratum);
 
 	return !(s && (*s == '0' || *s == 'n' || *s == 'N'));
 }
diff --git a/run_tests.sh b/run_tests.sh
index c7972cbd198b..aa2e65f622ce 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -19,6 +19,7 @@ Usage: $0 [-h] [-v] [-a] [-g group] [-j NUM-TASKS]
     -h: Output this help text
     -v: Enables verbose mode
     -a: Run all tests, including those flagged as 'nodefault'
+        and those guarded by errata.
     -g: Only execute tests in the given group
     -j: Execute tests in parallel
 
@@ -35,6 +36,7 @@ while getopts "ag:hj:v" opt; do
     case $opt in
         a)
             run_all_tests="yes"
+            export ERRATA_FORCE=y
             ;;
         g)
             only_group=$OPTARG
-- 
2.9.4