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test_firmware: add support for request_firmware_into_buf
Add test config into_buf to allow request_firmware_into_buf to be called instead of request_firmware/request_firmware_direct. The number of parameters differ calling request_firmware_into_buf and support has not been added to test such api in test_firmware until now. Signed-off-by: Scott Branden <scott.branden@broadcom.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20190822184005.901-2-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -18,6 +18,7 @@
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#include <linux/device.h>
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#include <linux/fs.h>
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#include <linux/miscdevice.h>
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#include <linux/sizes.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <linux/delay.h>
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@ -26,6 +27,7 @@
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#define TEST_FIRMWARE_NAME "test-firmware.bin"
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#define TEST_FIRMWARE_NUM_REQS 4
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#define TEST_FIRMWARE_BUF_SIZE SZ_1K
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static DEFINE_MUTEX(test_fw_mutex);
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static const struct firmware *test_firmware;
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@ -45,6 +47,8 @@ struct test_batched_req {
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* test_config - represents configuration for the test for different triggers
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*
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* @name: the name of the firmware file to look for
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* @into_buf: when the into_buf is used if this is true
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* request_firmware_into_buf() will be used instead.
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* @sync_direct: when the sync trigger is used if this is true
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* request_firmware_direct() will be used instead.
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* @send_uevent: whether or not to send a uevent for async requests
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@ -83,6 +87,7 @@ struct test_batched_req {
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*/
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struct test_config {
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char *name;
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bool into_buf;
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bool sync_direct;
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bool send_uevent;
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u8 num_requests;
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@ -176,6 +181,7 @@ static int __test_firmware_config_init(void)
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test_fw_config->num_requests = TEST_FIRMWARE_NUM_REQS;
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test_fw_config->send_uevent = true;
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test_fw_config->into_buf = false;
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test_fw_config->sync_direct = false;
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test_fw_config->req_firmware = request_firmware;
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test_fw_config->test_result = 0;
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@ -244,6 +250,9 @@ static ssize_t config_show(struct device *dev,
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test_fw_config->send_uevent ?
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"FW_ACTION_HOTPLUG" :
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"FW_ACTION_NOHOTPLUG");
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len += scnprintf(buf+len, PAGE_SIZE - len,
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"into_buf:\t\t%s\n",
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test_fw_config->into_buf ? "true" : "false");
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len += scnprintf(buf+len, PAGE_SIZE - len,
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"sync_direct:\t\t%s\n",
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test_fw_config->sync_direct ? "true" : "false");
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@ -393,6 +402,23 @@ static ssize_t config_num_requests_show(struct device *dev,
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}
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static DEVICE_ATTR_RW(config_num_requests);
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static ssize_t config_into_buf_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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return test_dev_config_update_bool(buf,
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count,
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&test_fw_config->into_buf);
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}
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static ssize_t config_into_buf_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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return test_dev_config_show_bool(buf, test_fw_config->into_buf);
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}
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static DEVICE_ATTR_RW(config_into_buf);
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static ssize_t config_sync_direct_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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@ -522,7 +548,7 @@ static ssize_t trigger_async_request_store(struct device *dev,
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rc = count;
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} else {
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pr_err("failed to async load firmware\n");
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rc = -ENODEV;
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rc = -ENOMEM;
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}
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out:
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@ -585,7 +611,26 @@ static int test_fw_run_batch_request(void *data)
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return -EINVAL;
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}
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req->rc = test_fw_config->req_firmware(&req->fw, req->name, req->dev);
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if (test_fw_config->into_buf) {
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void *test_buf;
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test_buf = kzalloc(TEST_FIRMWARE_BUF_SIZE, GFP_KERNEL);
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if (!test_buf)
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return -ENOSPC;
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req->rc = request_firmware_into_buf(&req->fw,
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req->name,
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req->dev,
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test_buf,
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TEST_FIRMWARE_BUF_SIZE);
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if (!req->fw)
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kfree(test_buf);
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} else {
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req->rc = test_fw_config->req_firmware(&req->fw,
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req->name,
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req->dev);
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}
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if (req->rc) {
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pr_info("#%u: batched sync load failed: %d\n",
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req->idx, req->rc);
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@ -849,6 +894,7 @@ static struct attribute *test_dev_attrs[] = {
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TEST_FW_DEV_ATTR(config),
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TEST_FW_DEV_ATTR(config_name),
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TEST_FW_DEV_ATTR(config_num_requests),
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TEST_FW_DEV_ATTR(config_into_buf),
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TEST_FW_DEV_ATTR(config_sync_direct),
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TEST_FW_DEV_ATTR(config_send_uevent),
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TEST_FW_DEV_ATTR(config_read_fw_idx),
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