Hi Suzuki,
On Wed, Apr 19, 2017 at 02:23:04PM +0100, Suzuki K Poulose wrote:
Hi Leo,
This version looks good to me. I have two minor comments below.
Thanks for reviewing. Will take the suggestions. Just check a bit for
last comment.
[...]
+static int debug_probe(struct amba_device *adev, const struct amba_id *id)
+{
+ void __iomem *base;
+ struct device *dev = &adev->dev;
+ struct debug_drvdata *drvdata;
+ struct resource *res = &adev->res;
+ struct device_node *np = adev->dev.of_node;
+ int ret;
+
+ drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ drvdata->cpu = np ? of_coresight_get_cpu(np) : 0;
+ if (per_cpu(debug_drvdata, drvdata->cpu)) {
+ dev_err(dev, "CPU%d drvdata has been initialized\n",
+ drvdata->cpu);
May be we could warn about a possible issue in the DT ?
So can I understand the suggestion is to add warning in function
of_coresight_get_cpu() when cannot find CPU number, and here directly
bail out?