test_firmware: add support for firmware_request_platform (548193cb) · Commits · 戴 / test

lib/test_firmware.c

+55 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@
		#include <linux/delay.h>
		#include <linux/kthread.h>
		#include <linux/vmalloc.h>
		#include <linux/efi_embedded_fw.h>

		#define TEST_FIRMWARE_NAME "test-firmware.bin"
		#define TEST_FIRMWARE_NUM_REQS 4
		@@ -507,6 +508,57 @@ out:
		}
		static DEVICE_ATTR_WO(trigger_request);

		#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
		static ssize_t trigger_request_platform_store(struct device *dev,
		struct device_attribute *attr,
		const char *buf, size_t count)
		{
		static const u8 test_data[] = {
		0x55, 0xaa, 0x55, 0xaa, 0x01, 0x02, 0x03, 0x04,
		0x55, 0xaa, 0x55, 0xaa, 0x05, 0x06, 0x07, 0x08,
		0x55, 0xaa, 0x55, 0xaa, 0x10, 0x20, 0x30, 0x40,
		0x55, 0xaa, 0x55, 0xaa, 0x50, 0x60, 0x70, 0x80
		};
		struct efi_embedded_fw efi_embedded_fw;
		const struct firmware *firmware = NULL;
		char *name;
		int rc;

		name = kstrndup(buf, count, GFP_KERNEL);
		if (!name)
		return -ENOSPC;

		pr_info("inserting test platform fw '%s'\n", name);
		efi_embedded_fw.name = name;
		efi_embedded_fw.data = (void *)test_data;
		efi_embedded_fw.length = sizeof(test_data);
		list_add(&efi_embedded_fw.list, &efi_embedded_fw_list);

		pr_info("loading '%s'\n", name);
		rc = firmware_request_platform(&firmware, name, dev);
		if (rc) {
		pr_info("load of '%s' failed: %d\n", name, rc);
		goto out;
		}
		if (firmware->size != sizeof(test_data) \|\|
		memcmp(firmware->data, test_data, sizeof(test_data)) != 0) {
		pr_info("firmware contents mismatch for '%s'\n", name);
		rc = -EINVAL;
		goto out;
		}
		pr_info("loaded: %zu\n", firmware->size);
		rc = count;

		out:
		release_firmware(firmware);
		list_del(&efi_embedded_fw.list);
		kfree(name);

		return rc;
		}
		static DEVICE_ATTR_WO(trigger_request_platform);
		#endif

		static DECLARE_COMPLETION(async_fw_done);

		static void trigger_async_request_cb(const struct firmware fw, void context)
		@@ -903,6 +955,9 @@ static struct attribute *test_dev_attrs[] = {
		TEST_FW_DEV_ATTR(trigger_request),
		TEST_FW_DEV_ATTR(trigger_async_request),
		TEST_FW_DEV_ATTR(trigger_custom_fallback),
		#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
		TEST_FW_DEV_ATTR(trigger_request_platform),
		#endif

		/* These use the config and can use the test_result */
		TEST_FW_DEV_ATTR(trigger_batched_requests),

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