linux-kernel - [tip: x86/urgent] selftests/x86/syscall_nt: Clear weird flags after each test

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Message-ID: <159359069061.4006.13159564696561405198.tip-bot2@tip-bot2>
Date:   Wed, 01 Jul 2020 08:04:50 -0000
From:   "tip-bot2 for Andy Lutomirski" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/urgent] selftests/x86/syscall_nt: Clear weird flags after each test

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     a61fa2799ef9bf6c4f54cf7295036577cececc72
Gitweb:        https://git.kernel.org/tip/a61fa2799ef9bf6c4f54cf7295036577cececc72
Author:        Andy Lutomirski <luto@...nel.org>
AuthorDate:    Fri, 26 Jun 2020 10:21:15 -07:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Wed, 01 Jul 2020 10:00:26 +02:00

selftests/x86/syscall_nt: Clear weird flags after each test

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@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lkml.kernel.org/r/907bfa5a42d4475b8245e18b67a04b13ca51ffdb.1593191971.git.luto@kernel.org

---
 tools/testing/selftests/x86/syscall_nt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c
index f060534..5fc82b9 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 {