From cf9610f9116d55c5a66ef9f1faecacabd93a9322 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 Aug 2026 08:46:03 -0700 Subject: Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl 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 ... --- lib/test_static_keys.c | 240 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 240 insertions(+) create mode 100644 lib/test_static_keys.c (limited to 'lib/test_static_keys.c') diff --git a/lib/test_static_keys.c b/lib/test_static_keys.c new file mode 100644 index 000000000..00c715f30 --- /dev/null +++ b/lib/test_static_keys.c @@ -0,0 +1,240 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Kernel module for testing static keys. + * + * Copyright 2015 Akamai Technologies Inc. All Rights Reserved + * + * Authors: + * Jason Baron + */ + +#include +#include + +/* old keys */ +struct static_key old_true_key = STATIC_KEY_INIT_TRUE; +struct static_key old_false_key = STATIC_KEY_INIT_FALSE; + +/* new api */ +DEFINE_STATIC_KEY_TRUE(true_key); +DEFINE_STATIC_KEY_FALSE(false_key); + +/* external */ +extern struct static_key base_old_true_key; +extern struct static_key base_inv_old_true_key; +extern struct static_key base_old_false_key; +extern struct static_key base_inv_old_false_key; + +/* new api */ +extern struct static_key_true base_true_key; +extern struct static_key_true base_inv_true_key; +extern struct static_key_false base_false_key; +extern struct static_key_false base_inv_false_key; + + +struct test_key { + bool init_state; + struct static_key *key; + bool (*test_key)(void); +}; + +#define test_key_func(key, branch) \ +static bool key ## _ ## branch(void) \ +{ \ + return branch(&key); \ +} + +static void invert_key(struct static_key *key) +{ + if (static_key_enabled(key)) + static_key_disable(key); + else + static_key_enable(key); +} + +static void invert_keys(struct test_key *keys, int size) +{ + struct static_key *previous = NULL; + int i; + + for (i = 0; i < size; i++) { + if (previous != keys[i].key) { + invert_key(keys[i].key); + previous = keys[i].key; + } + } +} + +static int verify_keys(struct test_key *keys, int size, bool invert) +{ + int i; + bool ret, init; + + for (i = 0; i < size; i++) { + ret = static_key_enabled(keys[i].key); + init = keys[i].init_state; + if (ret != (invert ? !init : init)) + return -EINVAL; + ret = keys[i].test_key(); + if (static_key_enabled(keys[i].key)) { + if (!ret) + return -EINVAL; + } else { + if (ret) + return -EINVAL; + } + } + return 0; +} + +test_key_func(old_true_key, static_key_true) +test_key_func(old_false_key, static_key_false) +test_key_func(true_key, static_branch_likely) +test_key_func(true_key, static_branch_unlikely) +test_key_func(false_key, static_branch_likely) +test_key_func(false_key, static_branch_unlikely) +test_key_func(base_old_true_key, static_key_true) +test_key_func(base_inv_old_true_key, static_key_true) +test_key_func(base_old_false_key, static_key_false) +test_key_func(base_inv_old_false_key, static_key_false) +test_key_func(base_true_key, static_branch_likely) +test_key_func(base_true_key, static_branch_unlikely) +test_key_func(base_inv_true_key, static_branch_likely) +test_key_func(base_inv_true_key, static_branch_unlikely) +test_key_func(base_false_key, static_branch_likely) +test_key_func(base_false_key, static_branch_unlikely) +test_key_func(base_inv_false_key, static_branch_likely) +test_key_func(base_inv_false_key, static_branch_unlikely) + +static int __init test_static_key_init(void) +{ + int ret; + int size; + + struct test_key static_key_tests[] = { + /* internal keys - old keys */ + { + .init_state = true, + .key = &old_true_key, + .test_key = &old_true_key_static_key_true, + }, + { + .init_state = false, + .key = &old_false_key, + .test_key = &old_false_key_static_key_false, + }, + /* internal keys - new keys */ + { + .init_state = true, + .key = &true_key.key, + .test_key = &true_key_static_branch_likely, + }, + { + .init_state = true, + .key = &true_key.key, + .test_key = &true_key_static_branch_unlikely, + }, + { + .init_state = false, + .key = &false_key.key, + .test_key = &false_key_static_branch_likely, + }, + { + .init_state = false, + .key = &false_key.key, + .test_key = &false_key_static_branch_unlikely, + }, + /* external keys - old keys */ + { + .init_state = true, + .key = &base_old_true_key, + .test_key = &base_old_true_key_static_key_true, + }, + { + .init_state = false, + .key = &base_inv_old_true_key, + .test_key = &base_inv_old_true_key_static_key_true, + }, + { + .init_state = false, + .key = &base_old_false_key, + .test_key = &base_old_false_key_static_key_false, + }, + { + .init_state = true, + .key = &base_inv_old_false_key, + .test_key = &base_inv_old_false_key_static_key_false, + }, + /* external keys - new keys */ + { + .init_state = true, + .key = &base_true_key.key, + .test_key = &base_true_key_static_branch_likely, + }, + { + .init_state = true, + .key = &base_true_key.key, + .test_key = &base_true_key_static_branch_unlikely, + }, + { + .init_state = false, + .key = &base_inv_true_key.key, + .test_key = &base_inv_true_key_static_branch_likely, + }, + { + .init_state = false, + .key = &base_inv_true_key.key, + .test_key = &base_inv_true_key_static_branch_unlikely, + }, + { + .init_state = false, + .key = &base_false_key.key, + .test_key = &base_false_key_static_branch_likely, + }, + { + .init_state = false, + .key = &base_false_key.key, + .test_key = &base_false_key_static_branch_unlikely, + }, + { + .init_state = true, + .key = &base_inv_false_key.key, + .test_key = &base_inv_false_key_static_branch_likely, + }, + { + .init_state = true, + .key = &base_inv_false_key.key, + .test_key = &base_inv_false_key_static_branch_unlikely, + }, + }; + + size = ARRAY_SIZE(static_key_tests); + + ret = verify_keys(static_key_tests, size, false); + if (ret) + goto out; + + invert_keys(static_key_tests, size); + ret = verify_keys(static_key_tests, size, true); + if (ret) + goto out; + + invert_keys(static_key_tests, size); + ret = verify_keys(static_key_tests, size, false); + if (ret) + goto out; + return 0; +out: + return ret; +} + +static void __exit test_static_key_exit(void) +{ +} + +module_init(test_static_key_init); +module_exit(test_static_key_exit); + +MODULE_AUTHOR("Jason Baron "); +MODULE_DESCRIPTION("Kernel module for testing static keys"); +MODULE_LICENSE("GPL"); -- cgit v1.3.1