Thread (36 messages) 36 messages, 5 authors, 2019-01-24

Re: [PATCH net-next v2 01/11] devlink: Add health buffer support

From: Jiri Pirko <jiri@resnulli.us>
Date: 2019-01-20 11:17:37

Sun, Jan 20, 2019 at 12:06:18PM CET, eranbe@mellanox.com wrote:

On 1/20/2019 12:03 PM, Jiri Pirko wrote:
quoted
Thu, Jan 17, 2019 at 10:59:10PM CET, eranbe@mellanox.com wrote:

[...]
quoted
+static void
+devlink_health_buffers_destroy(struct devlink_health_buffer **buffers_list,
+			       u64 size);
Avoid fwd declarations.

quoted
+
+static struct devlink_health_buffer **
+devlink_health_buffers_create(u64 size)
+{
+	struct devlink_health_buffer **buffers_list;
+	u64 num_of_buffers = DEVLINK_HEALTH_SIZE_TO_BUFFERS(size);
+	u64 i;
+
+	buffers_list = kcalloc(num_of_buffers,
+			       sizeof(struct devlink_health_buffer *),
+			       GFP_KERNEL);
+	if (!buffers_list)
+		return NULL;
+
+	for (i = 0; i < num_of_buffers; i++) {
+		struct devlink_health_buffer *buffer;
+		void *data;
+
+		buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+		data = kzalloc(DEVLINK_HEALTH_BUFFER_SIZE, GFP_KERNEL);
+		if (!buffer || !data) {
+			kfree(buffer);
+			kfree(data);
+			goto buffers_cleanup;
+		}
+		buffers_list[i] = buffer;
+		buffer->data = data;
+	}
+	devlink_health_buffers_reset(buffers_list, num_of_buffers);
+
+	return buffers_list;
+
+buffers_cleanup:
+	devlink_health_buffers_destroy(buffers_list, --i);
Just do for-kfree here.

quoted
+	kfree(buffers_list);
+	return NULL;
+}
+
+static void
+devlink_health_buffers_destroy(struct devlink_health_buffer **buffers_list,
+			       u64 num_of_buffers)
+{
+	u64 i;
+
+	for (i = 0; i < num_of_buffers; i++) {
+		kfree(buffers_list[i]->data);
+		kfree(buffers_list[i]);
+	}
+}
+
[...]
Hi Jiri,
The series is merged. I can take the relevant comments as send as fix 
with the rest of the series if you wish to.
I haven't have time to review this due to travel. I think it was mistake
to merge this as the buffer api is wrong in my opinion. I would vote for
revert if possible.
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