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Introduce an environment variable > IGT_FAULT_INJECT_ITERATION using which, an error can be injected at > specific function call. If the environment is not exported, an error will > be injected in every possible function call starting from first up to the > max number of iteration defined by INJECT_ITERATIONS, currently hardcoded > as 100. This description does not fit the patch, which adds one function that is not used yet. If I understand correctly it is exclusively intended for use in probe_fail_guc(), so it might be best to merge this patch and the next one in the series. > > Signed-off-by: Satyanarayana K V P > Cc: Michał Wajdeczko > Cc: Francois Dugast > --- > tests/intel/xe_fault_injection.c | 18 +++++++++++++++++- > 1 file changed, 17 insertions(+), 1 deletion(-) > > diff --git a/tests/intel/xe_fault_injection.c b/tests/intel/xe_fault_injection.c > index a4252d028..9432828c2 100644 > --- a/tests/intel/xe_fault_injection.c > +++ b/tests/intel/xe_fault_injection.c > @@ -25,6 +25,7 @@ > #define INJECT_ERRNO -ENOMEM > #define BO_ADDR 0x1a0000 > #define BO_SIZE (1024*1024) > +#define INJECT_ITERATIONS 100 > > enum injection_list_action { > INJECTION_LIST_ADD, > @@ -42,6 +43,21 @@ struct fault_injection_params { > unsigned int space; > }; > > +static int get_fault_inject_iter(void) > +{ > + /** > + * Introduce a new env variable IGT_FAULT_INJECT_ITERATION. > + * When unset test will run for INJECT_ITERATIONS iterations. > + * When set to <=0 or malformed - same as unset. > + * When set to >0 it will run single n-th iteration only. > + */ > + > + const char *env = getenv("IGT_FAULT_INJECT_ITERATION"); > + > + /* Return 0 if not exported / -ve value */ > + return env ? (atoi(env) > 0 ? atoi(env) : 0) : 0; > +} > + > static int fail_function_open(void) > { > int debugfs_fail_function_dir_fd; > @@ -211,8 +227,8 @@ inject_fault_probe(int fd, char pci_slot[], const char function_name[]) > injection_list_do(INJECTION_LIST_ADD, function_name); > set_retval(function_name, INJECT_ERRNO); > xe_sysfs_driver_do(fd, pci_slot, XE_SYSFS_DRIVER_TRY_BIND); > - igt_assert_eq(-errno, INJECT_ERRNO); > injection_list_do(INJECTION_LIST_REMOVE, function_name); > + xe_sysfs_driver_do(fd, pci_slot, XE_SYSFS_DRIVER_TRY_UNBIND); Unrelated changes? Francois > } > > static int > -- > 2.35.3 >