Re: [PATCH v2] platform/x86: wmi: Fix printing info about WDG structure

From: Andy Shevchenko
Date: Sat Jun 10 2017 - 07:23:05 EST


On Sat, Jun 10, 2017 at 1:57 PM, Pali RohÃr <pali.rohar@xxxxxxxxx> wrote:
> object_id and notify_id are in one union structure and their meaning is
> defined by flags. Therefore do not print notify_id for non-event block and
> do not print object_id for event block. Remove also reserved member as it
> does not have any defined meaning or type yet.
>
> As object_id and notify_id union members overlaps and have different types,
> it caused that kernel print to dmesg binary data. This patch eliminates it.
>
> Signed-off-by: Pali RohÃr <pali.rohar@xxxxxxxxx>

Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>

> ---
> Changes since v2:
> * Use %2pE instead of %c%c as suggested by Andy Shevchenko
> ---
> drivers/platform/x86/wmi.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
> index ceeb8c1..6d6f2a9 100644
> --- a/drivers/platform/x86/wmi.c
> +++ b/drivers/platform/x86/wmi.c
> @@ -352,9 +352,10 @@ acpi_status wmi_set_block(const char *guid_string, u8 instance,
> static void wmi_dump_wdg(const struct guid_block *g)
> {
> pr_info("%pUL:\n", g->guid);
> - pr_info("\tobject_id: %c%c\n", g->object_id[0], g->object_id[1]);
> - pr_info("\tnotify_id: %02X\n", g->notify_id);
> - pr_info("\treserved: %02X\n", g->reserved);
> + if (g->flags & ACPI_WMI_EVENT)
> + pr_info("\tnotify_id: 0x%02X\n", g->notify_id);
> + else
> + pr_info("\tobject_id: %2pE\n", g->object_id);
> pr_info("\tinstance_count: %d\n", g->instance_count);
> pr_info("\tflags: %#x", g->flags);
> if (g->flags) {
> --
> 1.7.9.5
>



--
With Best Regards,
Andy Shevchenko