This is a note to let you know that I've just added the patch titled selftests/x86/syscall_nt: Clear weird flags after each test to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-x86-syscall_nt-clear-weird-flags-after-eac.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit f27a8e7ae36f5f01478f5177fc407dabe7fdf15e Author: Andy Lutomirski <luto@xxxxxxxxxx> Date: Fri Jun 26 10:21:15 2020 -0700 selftests/x86/syscall_nt: Clear weird flags after each test [ Upstream commit a61fa2799ef9bf6c4f54cf7295036577cececc72 ] Clear the weird flags before logging to improve strace output -- logging results while, say, TF is set does no one any favors. Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: https://lkml.kernel.org/r/907bfa5a42d4475b8245e18b67a04b13ca51ffdb.1593191971.git.luto@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c index 02309a1950413..a765f62ee7668 100644 --- a/tools/testing/selftests/x86/syscall_nt.c +++ b/tools/testing/selftests/x86/syscall_nt.c @@ -59,6 +59,7 @@ static void do_it(unsigned long extraflags) set_eflags(get_eflags() | extraflags); syscall(SYS_getpid); flags = get_eflags(); + set_eflags(X86_EFLAGS_IF | X86_EFLAGS_FIXED); if ((flags & extraflags) == extraflags) { printf("[OK]\tThe syscall worked and flags are still set\n"); } else {