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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /tools/perf/tests/fdarray.c
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'tools/perf/tests/fdarray.c')
-rw-r--r--tools/perf/tests/fdarray.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/tools/perf/tests/fdarray.c b/tools/perf/tests/fdarray.c
new file mode 100644
index 000000000..40983c357
--- /dev/null
+++ b/tools/perf/tests/fdarray.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <api/fd/array.h>
+#include <poll.h>
+#include "util/debug.h"
+#include "tests/tests.h"
+
+static void fdarray__init_revents(struct fdarray *fda, short revents)
+{
+ int fd;
+
+ fda->nr = fda->nr_alloc;
+
+ for (fd = 0; fd < fda->nr; ++fd) {
+ fda->entries[fd].fd = fda->nr - fd;
+ fda->entries[fd].events = revents;
+ fda->entries[fd].revents = revents;
+ }
+}
+
+static int fdarray__fprintf_prefix(struct fdarray *fda, const char *prefix, FILE *fp)
+{
+ int printed = 0;
+
+ if (verbose <= 0)
+ return 0;
+
+ printed += fprintf(fp, "\n%s: ", prefix);
+ return printed + fdarray__fprintf(fda, fp);
+}
+
+static int test__fdarray__filter(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+ int nr_fds, err = TEST_FAIL;
+ struct fdarray *fda = fdarray__new(5, 5);
+
+ if (fda == NULL) {
+ pr_debug("\nfdarray__new() failed!");
+ goto out;
+ }
+
+ fdarray__init_revents(fda, POLLIN);
+ nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
+ if (nr_fds != fda->nr_alloc) {
+ pr_debug("\nfdarray__filter()=%d != %d shouldn't have filtered anything",
+ nr_fds, fda->nr_alloc);
+ goto out_delete;
+ }
+
+ fdarray__init_revents(fda, POLLHUP);
+ nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
+ if (nr_fds != 0) {
+ pr_debug("\nfdarray__filter()=%d != %d, should have filtered all fds",
+ nr_fds, fda->nr_alloc);
+ goto out_delete;
+ }
+
+ fdarray__init_revents(fda, POLLHUP);
+ fda->entries[2].revents = POLLIN;
+
+ pr_debug("\nfiltering all but fda->entries[2]:");
+ fdarray__fprintf_prefix(fda, "before", stderr);
+ nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
+ fdarray__fprintf_prefix(fda, " after", stderr);
+ if (nr_fds != 1) {
+ pr_debug("\nfdarray__filter()=%d != 1, should have left just one event", nr_fds);
+ goto out_delete;
+ }
+
+ fdarray__init_revents(fda, POLLHUP);
+ fda->entries[0].revents = POLLIN;
+ fda->entries[3].revents = POLLIN;
+
+ pr_debug("\nfiltering all but (fda->entries[0], fda->entries[3]):");
+ fdarray__fprintf_prefix(fda, "before", stderr);
+ nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
+ fdarray__fprintf_prefix(fda, " after", stderr);
+ if (nr_fds != 2) {
+ pr_debug("\nfdarray__filter()=%d != 2, should have left just two events",
+ nr_fds);
+ goto out_delete;
+ }
+
+ pr_debug("\n");
+
+ err = 0;
+out_delete:
+ fdarray__delete(fda);
+out:
+ return err;
+}
+
+static int test__fdarray__add(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+ int err = TEST_FAIL;
+ struct fdarray *fda = fdarray__new(2, 2);
+
+ if (fda == NULL) {
+ pr_debug("\nfdarray__new() failed!");
+ goto out;
+ }
+
+#define FDA_CHECK(_idx, _fd, _revents) \
+ if (fda->entries[_idx].fd != _fd) { \
+ pr_debug("\n%d: fda->entries[%d](%d) != %d!", \
+ __LINE__, _idx, fda->entries[1].fd, _fd); \
+ goto out_delete; \
+ } \
+ if (fda->entries[_idx].events != (_revents)) { \
+ pr_debug("\n%d: fda->entries[%d].revents(%d) != %d!", \
+ __LINE__, _idx, fda->entries[_idx].fd, _revents); \
+ goto out_delete; \
+ }
+
+#define FDA_ADD(_idx, _fd, _revents, _nr) \
+ if (fdarray__add(fda, _fd, _revents, fdarray_flag__default) < 0) { \
+ pr_debug("\n%d: fdarray__add(fda, %d, %d) failed!", \
+ __LINE__,_fd, _revents); \
+ goto out_delete; \
+ } \
+ if (fda->nr != _nr) { \
+ pr_debug("\n%d: fdarray__add(fda, %d, %d)=%d != %d", \
+ __LINE__,_fd, _revents, fda->nr, _nr); \
+ goto out_delete; \
+ } \
+ FDA_CHECK(_idx, _fd, _revents)
+
+ FDA_ADD(0, 1, POLLIN, 1);
+ FDA_ADD(1, 2, POLLERR, 2);
+
+ fdarray__fprintf_prefix(fda, "before growing array", stderr);
+
+ FDA_ADD(2, 35, POLLHUP, 3);
+
+ if (fda->entries == NULL) {
+ pr_debug("\nfdarray__add(fda, 35, POLLHUP) should have allocated fda->pollfd!");
+ goto out_delete;
+ }
+
+ fdarray__fprintf_prefix(fda, "after 3rd add", stderr);
+
+ FDA_ADD(3, 88, POLLIN | POLLOUT, 4);
+
+ fdarray__fprintf_prefix(fda, "after 4th add", stderr);
+
+ FDA_CHECK(0, 1, POLLIN);
+ FDA_CHECK(1, 2, POLLERR);
+ FDA_CHECK(2, 35, POLLHUP);
+ FDA_CHECK(3, 88, POLLIN | POLLOUT);
+
+#undef FDA_ADD
+#undef FDA_CHECK
+
+ pr_debug("\n");
+
+ err = 0;
+out_delete:
+ fdarray__delete(fda);
+out:
+ return err;
+}
+
+DEFINE_SUITE("Filter fds with revents mask in a fdarray", fdarray__filter);
+DEFINE_SUITE("Add fd to a fdarray, making it autogrow", fdarray__add);