From 979c2c4247cafd8a91628a7306b6871efbd12fdb Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Fri, 26 Jun 2020 10:24:27 -0700 Subject: [PATCH] selftests/x86/fsgsbase: Fix a comment in the ptrace_write_gsbase test A comment was unclear. Fix it. Fixes: 5e7ec8578fa3 ("selftests/x86/fsgsbase: Test ptracer-induced GS base write with FSGSBASE") Signed-off-by: Andy Lutomirski Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/901034a91a40169ec84f1f699ea86704dff762e4.1593192140.git.luto@kernel.org --- tools/testing/selftests/x86/fsgsbase.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/x86/fsgsbase.c b/tools/testing/selftests/x86/fsgsbase.c index 9a4349813a30..f47495d2f070 100644 --- a/tools/testing/selftests/x86/fsgsbase.c +++ b/tools/testing/selftests/x86/fsgsbase.c @@ -498,7 +498,8 @@ static void test_ptrace_write_gsbase(void) * base would zero the selector. On newer kernels, * this behavior has changed -- poking the base * changes only the base and, if FSGSBASE is not - * available, this may not effect. + * available, this may have no effect once the tracee + * is resumed. */ if (gs == 0) printf("\tNote: this is expected behavior on older kernels.\n"); -- 2.17.1