kernel/tools/testing/vsock/vsock_diag_test.c, branch linux-6.2.y

vsock_diag_test: remove free_sock_stat() call in test_no_sockets

2021-10-16T00:21:34Z

In `test_no_sockets` we don't expect any sockets, indeed check_no_sockets() prints an error and exits if `sockets` list is not empty, so free_sock_stat() call is unnecessary since it would only be called when the `sockets` list is empty. This was discovered by a strange warning printed by gcc v11.2.1: In file included from ../../include/linux/list.h:7, from vsock_diag_test.c:18: vsock_diag_test.c: In function ‘test_no_sockets’: ../../include/linux/kernel.h:35:45: error: array subscript ‘struct vsock_stat[0]’ is partly outside array bound s of ‘struct list_head[1]’ [-Werror=array-bounds] 35 | const typeof(((type *)0)->member) * __mptr = (ptr); \ | ^~~~~~ ../../include/linux/list.h:352:9: note: in expansion of macro ‘container_of’ 352 | container_of(ptr, type, member) | ^~~~~~~~~~~~ ../../include/linux/list.h:393:9: note: in expansion of macro ‘list_entry’ 393 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ ../../include/linux/list.h:522:21: note: in expansion of macro ‘list_next_entry’ 522 | n = list_next_entry(pos, member); \ | ^~~~~~~~~~~~~~~ vsock_diag_test.c:325:9: note: in expansion of macro ‘list_for_each_entry_safe’ 325 | list_for_each_entry_safe(st, next, sockets, list) { | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from vsock_diag_test.c:18: vsock_diag_test.c:333:19: note: while referencing ‘sockets’ 333 | LIST_HEAD(sockets); | ^~~~~~~ ../../include/linux/list.h:23:26: note: in definition of macro ‘LIST_HEAD’ 23 | struct list_head name = LIST_HEAD_INIT(name) It seems related to some compiler optimization and assumption about the empty `sockets` list, since this warning is printed only with -02 or -O3. Also removing `exit(1)` from check_no_sockets() makes the warning disappear since in that case free_sock_stat() can be reached also when the list is not empty. Reported-by: Marc-André Lureau Signed-off-by: Stefano Garzarella Link: https://lore.kernel.org/r/20211014152045.173872-1-sgarzare@redhat.com Signed-off-by: Jakub Kicinski

testing/vsock: print list of options and description

2019-12-21T05:09:21Z

Since we now have several options, in the help we print the list of all supported options and a brief description of them. Signed-off-by: Stefano Garzarella Signed-off-by: David S. Miller

testing/vsock: add parameters to list and skip tests

2019-12-21T05:09:21Z

Some tests can fail with transports that have a slightly different behavior, so let's add the possibility to specify which tests to skip. Signed-off-by: Stefano Garzarella Signed-off-by: David S. Miller

VSOCK: extract connect/accept functions from vsock_diag_test.c

2019-12-21T05:09:21Z

Many test cases will need to connect to the server or accept incoming connections. This patch extracts these operations into utility functions that can be reused. Signed-off-by: Stefan Hajnoczi Signed-off-by: Stefano Garzarella Signed-off-by: David S. Miller

VSOCK: extract utility functions from vsock_diag_test.c

2019-12-21T05:09:21Z

Move useful functions into a separate file in preparation for more vsock test programs. Signed-off-by: Stefan Hajnoczi Signed-off-by: Stefano Garzarella Signed-off-by: David S. Miller

VSOCK: fix header include in vsock_diag_test

2019-12-21T05:09:20Z

The vsock_diag_test program directly included ../../../include/uapi/ headers from the source tree. Tests are supposed to use the usr/include/linux/ headers that have been prepared with make headers_install instead. Suggested-by: David S. Miller Signed-off-by: Stefan Hajnoczi Signed-off-by: Stefano Garzarella Signed-off-by: David S. Miller

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05T15:37:17Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman

VSOCK: add tools/testing/vsock/vsock_diag_test

2017-10-06T01:44:17Z

This patch adds tests for the vsock_diag.ko module. These tests are not self-tests because they require manual set up of a KVM or VMware guest. Please see tools/testing/vsock/README for instructions. The control.h and timeout.h infrastructure can be used for additional AF_VSOCK tests in the future. Signed-off-by: Stefan Hajnoczi Signed-off-by: David S. Miller