#include #include "tests.h" #include "debug.h" #include "util.h" int test__is_printable_array(int subtest __maybe_unused) { char buf1[] = { 'k', 'r', 4, 'v', 'a', 0 }; char buf2[] = { 'k', 'r', 'a', 'v', 4, 0 }; struct { char *buf; unsigned int len; int ret; } t[] = { { (char *) "krava", sizeof("krava"), 1 }, { (char *) "krava", sizeof("krava") - 1, 0 }, { (char *) "", sizeof(""), 1 }, { (char *) "", 0, 0 }, { NULL, 0, 0 }, { buf1, sizeof(buf1), 0 }, { buf2, sizeof(buf2), 0 }, }; unsigned int i; for (i = 0; i < ARRAY_SIZE(t); i++) { int ret; ret = is_printable_array((char *) t[i].buf, t[i].len); if (ret != t[i].ret) { pr_err("failed: test %u\n", i); return TEST_FAIL; } } return TEST_OK; } href='/cgit.cgi/'>index : net-next.git
net-next plumbingsTobias Klauser
summaryrefslogtreecommitdiff
path: root/sound/pci/riptide/Makefile
diff options
context:
space:
mode:
authorDexuan Cui <decui@microsoft.com>2017-01-28 11:46:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-31 10:59:48 +0100
commit433e19cf33d34bb6751c874a9c00980552fe508c (patch)
treece6547ef2987fbb289fa28f03536328a42781651 /sound/pci/riptide/Makefile
parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/pci/riptide/Makefile')