[PATCH 3/3] arm64: cpuinfo: display product info in /proc/cpuinfo

Florian Fainelli
2017-09-27T00:40:20Z

On 09/26/2017 03:23 PM, Al Stone wrote:
> While it is very useful to know what CPU is being used, it is also
> useful to know who made the platform being used. On servers, this
> can point to the right person to contact when a server is having
> trouble.
>
> Go get the product info -- manufacturer, product name and version --
> from DMI (aka SMBIOS) and display it in /proc/cpuinfo. To look more
> like other server platforms, include the CPU type and frequency when
> displaying the product info, too.
>
> Signed-off-by: Al Stone <ahs3@redhat.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> ---

[snip]

> +/* Look up the baseboard info in DMI */
> +static void get_dmi_product_info(void)
> +{
> + if (!dmi_product_info) {
> + dmi_product_info = kcalloc(DMI_MAX_STRLEN,
> + sizeof(char), GFP_KERNEL);
> + if (!dmi_product_info)
> + return;
> + }
> +
> + dmi_walk(find_dmi_product_info, dmi_product_info);
> +}

Don't you need all of these DMI-related functions you defined to be also
enclosed within an #if IS_ENABLED(CONFIG_DMI) otherwise chances are that
we are going to get defined but unused warnings?

> impl = (u8) MIDR_IMPLEMENTOR(midr);
> for (j = 0; hw_implementer[j].id != 0; j++) {
> if (hw_implementer[j].id == impl) {
> @@ -208,7 +341,7 @@ static int c_show(struct seq_file *m, void *v)
> part = (u16) MIDR_PARTNUM(midr);
> for (j = 0; parts[j].id != (-1); j++) {
> if (parts[j].id == part) {
> - seq_printf(m, "%s\n", parts[j].name);
> + seq_printf(m, "%s ", parts[j].name);
> break;
> }

Should this hunk be part of patch 3?
--
Florian