On Mon, 2022-03-14 at 12:53 +0100, Greg Kroah-Hartman wrote:
From: Kumar Kartikeya Dwivedi memxor@gmail.com
[ Upstream commit a7e75016a0753c24d6c995bc02501ae35368e333 ]
Add a test that validates that timer value is not overwritten when doing a copy_map_value call in the kernel. Without the prior fix, this test triggers a crash.
Signed-off-by: Kumar Kartikeya Dwivedi memxor@gmail.com Signed-off-by: Alexei Starovoitov ast@kernel.org Link: https://lore.kernel.org/bpf/20220209070324.1093182-3-memxor@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org
Hi, this patch in 5.4.185 breaks bpf selftests build for me:
progs/timer_crash.c:3:10: fatal error: 'vmlinux.h' file not found #include <vmlinux.h> ^~~~~~~~~~~
Based on quick look, vmlinux.h generation was added to selftests in v5.7, so drop this patch in v5.4?
-Tommi
.../selftests/bpf/prog_tests/timer_crash.c | 32 +++++++++++ .../testing/selftests/bpf/progs/timer_crash.c | 54 +++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 tools/testing/selftests/bpf/prog_tests/timer_crash.c create mode 100644 tools/testing/selftests/bpf/progs/timer_crash.c
diff --git a/tools/testing/selftests/bpf/progs/timer_crash.c b/tools/testing/selftests/bpf/progs/timer_crash.c new file mode 100644 index 000000000000..f8f7944e70da --- /dev/null +++ b/tools/testing/selftests/bpf/progs/timer_crash.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include <bpf/bpf_helpers.h>