[1/3] test_firmware: add support for request_firmware_into_buf
diff mbox series

Message ID 20190816000945.29810-2-scott.branden@broadcom.com
State New
Headers show
Series
  • firmware: selftest for request_firmware_into_buf
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Commit Message

Scott Branden Aug. 16, 2019, 12:09 a.m. UTC
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>
---
 lib/test_firmware.c | 50 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 2 deletions(-)

Comments

Luis Chamberlain Aug. 19, 2019, 5:24 a.m. UTC | #1
On Thu, Aug 15, 2019 at 05:09:43PM -0700, Scott Branden wrote:
> 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>

Thanks for the patch!

Acked-by: Luis Chamberlain <mcgrof@kernel.org>

  Luis
shuah Aug. 19, 2019, 8:27 p.m. UTC | #2
On 8/18/19 11:24 PM, Luis Chamberlain wrote:
> On Thu, Aug 15, 2019 at 05:09:43PM -0700, Scott Branden wrote:
>> 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>
> 
> Thanks for the patch!
> 
> Acked-by: Luis Chamberlain <mcgrof@kernel.org>
> 
>    Luis
> 

Greg! Pls let me know if you would like me to take this
throough my tree. If not,

Acked-by: Shuah Khan <skhan@linuxfoundation.org>


thanks,
-- Shuah

Patch
diff mbox series

diff --git a/lib/test_firmware.c b/lib/test_firmware.c
index 6ca97a63b3d6..1aa430228ae6 100644
--- a/lib/test_firmware.c
+++ b/lib/test_firmware.c
@@ -18,6 +18,7 @@ 
 #include <linux/device.h>
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
+#include <linux/sizes.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/delay.h>
@@ -26,6 +27,7 @@ 
 
 #define TEST_FIRMWARE_NAME	"test-firmware.bin"
 #define TEST_FIRMWARE_NUM_REQS	4
+#define TEST_FIRMWARE_BUF_SIZE	SZ_1K
 
 static DEFINE_MUTEX(test_fw_mutex);
 static const struct firmware *test_firmware;
@@ -45,6 +47,8 @@  struct test_batched_req {
  * test_config - represents configuration for the test for different triggers
  *
  * @name: the name of the firmware file to look for
+ * @into_buf: when the into_buf is used if this is true
+ *	request_firmware_into_buf() will be used instead.
  * @sync_direct: when the sync trigger is used if this is true
  *	request_firmware_direct() will be used instead.
  * @send_uevent: whether or not to send a uevent for async requests
@@ -83,6 +87,7 @@  struct test_batched_req {
  */
 struct test_config {
 	char *name;
+	bool into_buf;
 	bool sync_direct;
 	bool send_uevent;
 	u8 num_requests;
@@ -176,6 +181,7 @@  static int __test_firmware_config_init(void)
 
 	test_fw_config->num_requests = TEST_FIRMWARE_NUM_REQS;
 	test_fw_config->send_uevent = true;
+	test_fw_config->into_buf = false;
 	test_fw_config->sync_direct = false;
 	test_fw_config->req_firmware = request_firmware;
 	test_fw_config->test_result = 0;
@@ -244,6 +250,9 @@  static ssize_t config_show(struct device *dev,
 			test_fw_config->send_uevent ?
 			"FW_ACTION_HOTPLUG" :
 			"FW_ACTION_NOHOTPLUG");
+	len += scnprintf(buf+len, PAGE_SIZE - len,
+			"into_buf:\t\t%s\n",
+			test_fw_config->into_buf ? "true" : "false");
 	len += scnprintf(buf+len, PAGE_SIZE - len,
 			"sync_direct:\t\t%s\n",
 			test_fw_config->sync_direct ? "true" : "false");
@@ -393,6 +402,23 @@  static ssize_t config_num_requests_show(struct device *dev,
 }
 static DEVICE_ATTR_RW(config_num_requests);
 
+static ssize_t config_into_buf_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	return test_dev_config_update_bool(buf,
+					   count,
+					   &test_fw_config->into_buf);
+}
+
+static ssize_t config_into_buf_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	return test_dev_config_show_bool(buf, test_fw_config->into_buf);
+}
+static DEVICE_ATTR_RW(config_into_buf);
+
 static ssize_t config_sync_direct_store(struct device *dev,
 					struct device_attribute *attr,
 					const char *buf, size_t count)
@@ -522,7 +548,7 @@  static ssize_t trigger_async_request_store(struct device *dev,
 		rc = count;
 	} else {
 		pr_err("failed to async load firmware\n");
-		rc = -ENODEV;
+		rc = -ENOMEM;
 	}
 
 out:
@@ -585,7 +611,26 @@  static int test_fw_run_batch_request(void *data)
 		return -EINVAL;
 	}
 
-	req->rc = test_fw_config->req_firmware(&req->fw, req->name, req->dev);
+	if (test_fw_config->into_buf) {
+		void *test_buf;
+
+		test_buf = kzalloc(TEST_FIRMWARE_BUF_SIZE, GFP_KERNEL);
+		if (!test_buf)
+			return -ENOSPC;
+
+		req->rc = request_firmware_into_buf(&req->fw,
+						    req->name,
+						    req->dev,
+						    test_buf,
+						    TEST_FIRMWARE_BUF_SIZE);
+		if (!req->fw)
+			kfree(test_buf);
+	} else {
+		req->rc = test_fw_config->req_firmware(&req->fw,
+						       req->name,
+						       req->dev);
+	}
+
 	if (req->rc) {
 		pr_info("#%u: batched sync load failed: %d\n",
 			req->idx, req->rc);
@@ -849,6 +894,7 @@  static struct attribute *test_dev_attrs[] = {
 	TEST_FW_DEV_ATTR(config),
 	TEST_FW_DEV_ATTR(config_name),
 	TEST_FW_DEV_ATTR(config_num_requests),
+	TEST_FW_DEV_ATTR(config_into_buf),
 	TEST_FW_DEV_ATTR(config_sync_direct),
 	TEST_FW_DEV_ATTR(config_send_uevent),
 	TEST_FW_DEV_ATTR(config_read_fw_idx),