[PATCH] kunit/usercopy: Disable u64 test on 32-bit SPARC
From: Thomas Weißschuh
Date: Wed Apr 16 2025 - 08:45:02 EST
usercopy of 64 bit values does not work on 32-bit SPARC:
# usercopy_test_valid: EXPECTATION FAILED at lib/tests/usercopy_kunit.c:209
Expected val_u64 == 0x5a5b5c5d6a6b6c6d, but
val_u64 == 1515936861 (0x5a5b5c5d)
0x5a5b5c5d6a6b6c6d == 6510899242581322861 (0x5a5b5c5d6a6b6c6d)
Disable the test.
Fixes: 4c5d7bc63775 ("usercopy: Add tests for all get_user() sizes")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
---
To be honest I think sparc32 wants to support usercopy of 64 bit values.
But it does seem to be broken.
(+Cc SPARC maintainers)
---
lib/tests/usercopy_kunit.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/tests/usercopy_kunit.c b/lib/tests/usercopy_kunit.c
index 77fa00a13df775074a19772bfbc9120ef33634bb..80f8abe10968c1d91c61006f1eaa63858c633872 100644
--- a/lib/tests/usercopy_kunit.c
+++ b/lib/tests/usercopy_kunit.c
@@ -27,6 +27,7 @@
!defined(CONFIG_MICROBLAZE) && \
!defined(CONFIG_NIOS2) && \
!defined(CONFIG_PPC32) && \
+ !defined(CONFIG_SPARC32) && \
!defined(CONFIG_SUPERH))
# define TEST_U64
#endif
---
base-commit: 1a1d569a75f3ab2923cb62daf356d102e4df2b86
change-id: 20250416-kunit-sparc-usercopy-c36de3ca4ef8
Best regards,
--
Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>