From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- lib/kunit/assert.c | 275 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 275 insertions(+) create mode 100644 lib/kunit/assert.c (limited to 'lib/kunit/assert.c') diff --git a/lib/kunit/assert.c b/lib/kunit/assert.c new file mode 100644 index 000000000..4c751ad85 --- /dev/null +++ b/lib/kunit/assert.c @@ -0,0 +1,275 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Assertion and expectation serialization API. + * + * Copyright (C) 2019, Google LLC. + * Author: Brendan Higgins + */ +#include +#include +#include + +#include "string-stream.h" + +void kunit_assert_prologue(const struct kunit_loc *loc, + enum kunit_assert_type type, + struct string_stream *stream) +{ + const char *expect_or_assert = NULL; + + switch (type) { + case KUNIT_EXPECTATION: + expect_or_assert = "EXPECTATION"; + break; + case KUNIT_ASSERTION: + expect_or_assert = "ASSERTION"; + break; + } + + string_stream_add(stream, "%s FAILED at %s:%d\n", + expect_or_assert, loc->file, loc->line); +} +EXPORT_SYMBOL_GPL(kunit_assert_prologue); + +VISIBLE_IF_KUNIT +void kunit_assert_print_msg(const struct va_format *message, + struct string_stream *stream) +{ + if (message->fmt) + string_stream_add(stream, "\n%pV", message); +} + +void kunit_fail_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + string_stream_add(stream, "%pV", message); +} +EXPORT_SYMBOL_GPL(kunit_fail_assert_format); + +void kunit_unary_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + const struct kunit_unary_assert *unary_assert; + + unary_assert = container_of(assert, struct kunit_unary_assert, assert); + + if (unary_assert->expected_true) + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s to be true, but is false\n", + unary_assert->condition); + else + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s to be false, but is true\n", + unary_assert->condition); + kunit_assert_print_msg(message, stream); +} +EXPORT_SYMBOL_GPL(kunit_unary_assert_format); + +void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + const struct kunit_ptr_not_err_assert *ptr_assert; + + ptr_assert = container_of(assert, struct kunit_ptr_not_err_assert, + assert); + + if (!ptr_assert->value) { + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s is not null, but is\n", + ptr_assert->text); + } else if (IS_ERR(ptr_assert->value)) { + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s is not error, but is: %ld\n", + ptr_assert->text, + PTR_ERR(ptr_assert->value)); + } + kunit_assert_print_msg(message, stream); +} +EXPORT_SYMBOL_GPL(kunit_ptr_not_err_assert_format); + +/* Checks if `text` is a literal representing `value`, e.g. "5" and 5 */ +VISIBLE_IF_KUNIT bool is_literal(const char *text, long long value) +{ + char *buffer; + int len; + bool ret; + + len = snprintf(NULL, 0, "%lld", value); + if (strlen(text) != len) + return false; + + buffer = kmalloc(len+1, GFP_KERNEL); + if (!buffer) + return false; + + snprintf(buffer, len+1, "%lld", value); + ret = strncmp(buffer, text, len) == 0; + + kfree(buffer); + + return ret; +} + +void kunit_binary_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + const struct kunit_binary_assert *binary_assert; + + binary_assert = container_of(assert, struct kunit_binary_assert, + assert); + + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s %s %s, but\n", + binary_assert->text->left_text, + binary_assert->text->operation, + binary_assert->text->right_text); + if (!is_literal(binary_assert->text->left_text, binary_assert->left_value)) + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld (0x%llx)\n", + binary_assert->text->left_text, + binary_assert->left_value, + binary_assert->left_value); + if (!is_literal(binary_assert->text->right_text, binary_assert->right_value)) + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld (0x%llx)", + binary_assert->text->right_text, + binary_assert->right_value, + binary_assert->right_value); + kunit_assert_print_msg(message, stream); +} +EXPORT_SYMBOL_GPL(kunit_binary_assert_format); + +void kunit_binary_ptr_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + const struct kunit_binary_ptr_assert *binary_assert; + + binary_assert = container_of(assert, struct kunit_binary_ptr_assert, + assert); + + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s %s %s, but\n", + binary_assert->text->left_text, + binary_assert->text->operation, + binary_assert->text->right_text); + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %px\n", + binary_assert->text->left_text, + binary_assert->left_value); + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %px", + binary_assert->text->right_text, + binary_assert->right_value); + kunit_assert_print_msg(message, stream); +} +EXPORT_SYMBOL_GPL(kunit_binary_ptr_assert_format); + +/* Checks if KUNIT_EXPECT_STREQ() args were string literals. + * Note: `text` will have ""s where as `value` will not. + */ +VISIBLE_IF_KUNIT bool is_str_literal(const char *text, const char *value) +{ + int len; + + len = strlen(text); + if (len < 2) + return false; + if (text[0] != '\"' || text[len - 1] != '\"') + return false; + + return strncmp(text + 1, value, len - 2) == 0; +} + +void kunit_binary_str_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + const struct kunit_binary_str_assert *binary_assert; + + binary_assert = container_of(assert, struct kunit_binary_str_assert, + assert); + + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s %s %s, but\n", + binary_assert->text->left_text, + binary_assert->text->operation, + binary_assert->text->right_text); + if (!is_str_literal(binary_assert->text->left_text, binary_assert->left_value)) + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == \"%s\"\n", + binary_assert->text->left_text, + binary_assert->left_value); + if (!is_str_literal(binary_assert->text->right_text, binary_assert->right_value)) + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == \"%s\"", + binary_assert->text->right_text, + binary_assert->right_value); + kunit_assert_print_msg(message, stream); +} +EXPORT_SYMBOL_GPL(kunit_binary_str_assert_format); + +/* Adds a hexdump of a buffer to a string_stream comparing it with + * a second buffer. The different bytes are marked with <>. + */ +VISIBLE_IF_KUNIT +void kunit_assert_hexdump(struct string_stream *stream, + const void *buf, + const void *compared_buf, + const size_t len) +{ + size_t i; + const u8 *buf1 = buf; + const u8 *buf2 = compared_buf; + + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT); + + for (i = 0; i < len; ++i) { + if (!(i % 16) && i) + string_stream_add(stream, "\n" KUNIT_SUBSUBTEST_INDENT); + + if (buf1[i] != buf2[i]) + string_stream_add(stream, "<%02x>", buf1[i]); + else + string_stream_add(stream, " %02x ", buf1[i]); + } +} + +void kunit_mem_assert_format(const struct kunit_assert *assert, + const struct va_format *message, + struct string_stream *stream) +{ + const struct kunit_mem_assert *mem_assert; + + mem_assert = container_of(assert, struct kunit_mem_assert, + assert); + + if (!mem_assert->left_value) { + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s is not null, but is\n", + mem_assert->text->left_text); + } else if (!mem_assert->right_value) { + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s is not null, but is\n", + mem_assert->text->right_text); + } else { + string_stream_add(stream, + KUNIT_SUBTEST_INDENT "Expected %s %s %s, but\n", + mem_assert->text->left_text, + mem_assert->text->operation, + mem_assert->text->right_text); + + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s ==\n", + mem_assert->text->left_text); + kunit_assert_hexdump(stream, mem_assert->left_value, + mem_assert->right_value, mem_assert->size); + + string_stream_add(stream, "\n"); + + string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s ==\n", + mem_assert->text->right_text); + kunit_assert_hexdump(stream, mem_assert->right_value, + mem_assert->left_value, mem_assert->size); + + kunit_assert_print_msg(message, stream); + } +} +EXPORT_SYMBOL_GPL(kunit_mem_assert_format); -- cgit v1.3.1