Hi Andy,
On 2017-01-18 14:45, Andy Shevchenko wrote:
On Wed, Jan 18, 2017 at 9:04 PM, Agustin Vega-Frias
<agustinv@xxxxxxxxxxxxxx> wrote:
[...]
+ */
+static struct fwnode_handle *
+acpi_get_irq_source_fwhandle(const struct acpi_resource_source
*source)
+{
+ struct fwnode_handle *result;
+ struct acpi_device *device;
+ acpi_handle handle;
+ acpi_status status;
+
+ if (!source->string_length)
+ return acpi_gsi_domain_id;
+
+ status = acpi_get_handle(NULL, source->string_ptr, &handle);
+ if (ACPI_FAILURE(status)) {
+ pr_warn("Could not find handle for %s\n",
source->string_ptr);
+ return NULL;
+ }
+
+ device = acpi_bus_get_acpi_device(handle);
+ if (!device) {
+ pr_warn("Could not get device for %s\n",
source->string_ptr);
I'm not sure both messages have a value.
I'll probably just drop the explicit pr_warns and just use WARN_ON on
the if condition. Is that a reasonable alternative in your view?
+ return NULL;
+ }
[...]
+ */
+static int acpi_irq_parse_one(acpi_handle handle, unsigned int index,
+ struct irq_fwspec *fwspec, unsigned long
*flags)
+{
+ struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags,
fwspec };
+ acpi_status status;
+
+ status = acpi_walk_resources(handle, METHOD_NAME__CRS,
+ acpi_irq_parse_one_cb, &ctx);
+ if (ACPI_FAILURE(status))
+ return -EINVAL;
Shouldn't you have the same in rc? Would be redundant.
Good point, since we always return -EINVAL on failure we can skip
the check since rc will only be updated on success.
+ return ctx.rc;
+}
+
[...]
+ domain = irq_find_matching_fwnode(fwspec.fwnode,
DOMAIN_BUS_ANY);
+ if (!domain)
+ return -EPROBE_DEFER;
Hmm... Could it be other issues here?
I'll comment on this on Lorenzo's reply.
+
+ rc = irq_create_fwspec_mapping(&fwspec);
+ if (rc <= 0)
+ return -EINVAL;
+
+ res->start = rc;
+ res->end = rc;
+ res->flags = flags;
Perhaps struct resource *r should be a parameter to
acpi_irq_parse_one().
I'll comment on this on Lorenzo's reply.
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_irq_get);
+
+/**
* acpi_set_irq_model - Setup the GSI irqdomain information
* @model: the value assigned to acpi_irq_model
* @fwnode: the irq_domain identifier for mapping and looking up
I'll address the other issues on V11.
Thanks for your thorough review,
Agustin
--
With Best Regards,
Andy Shevchenko
--
Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm
Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a
Linux Foundation Collaborative Project.
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