Re: [PATCH] ksysfs: Expose hardware name

[Richard Weinberger <richard@nod.at>]

----- Ursprüngliche Mail -----
> Von: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
> An: "richard" <richard@nod.at>
> CC: "linux-kernel" <linux-kernel@vger.kernel.org>, "bhe" <bhe@redhat.com>, sourabhjain@linux.ibm.com, "Andrew Morton"
> <akpm@linux-foundation.org>, "senozhatsky" <senozhatsky@chromium.org>, "John Ogness" <john.ogness@linutronix.de>,
> "Steven Rostedt" <rostedt@goodmis.org>, "Petr Mladek" <pmladek@suse.com>, upstream+linux@sigma-star.at
> Gesendet: Montag, 23. Februar 2026 14:49:31
> Betreff: Re: [PATCH] ksysfs: Expose hardware name

> On Mon, Feb 23, 2026 at 02:34:48PM +0100, Richard Weinberger wrote:
>> Userspace tools often require a short, descriptive name of the hardware
>> platform. Currently, this information is fragmented: Device Tree-based
>> platforms typically use /proc/device-tree/model, while x86 platforms
>> combine multiple values from /sys/class/dmi/id/. There is no uniform,
>> platform-agnostic way to retrieve this string.
>> 
>> The kernel already maintains dump_stack_arch_desc_str[], which contains
>> the model name or DMI values used for the "Hardware name:" field in
>> stack traces.
>> 
>> Expose dump_stack_arch_desc_str[] at /sys/kernel/hardware_name to
>> provide userspace with a consistent interface for identifying the
>> underlying hardware.
> 
> No objection from me, but now that this is a global symbol in the
> kernel, "dump_" seems like an odd prefix for this.  How about
> "linux_hardware_name" to match up with the sysfs file name?

I don't care much. The reason why I kept the variable as-is is because
the function to set it is dump_stack_set_arch_desc().
So the prefix makes kinda sense.

Thanks,
//richard