Re: [PATCH v13 7/7] x86/crash: add x86 crash hotplug support

From: Eric DeVolder
Date: Tue Nov 01 2022 - 11:45:49 EST




On 10/31/22 16:04, Borislav Petkov wrote:
On Mon, Oct 31, 2022 at 03:36:04PM -0400, Eric DeVolder wrote:
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_MEMORY_HOTPLUG)

What happened to that here:

https://lore.kernel.org/r/Y1e85gqB3kzlx7qL@xxxxxxx

?


When I was evaluating the suggestions, I realized that that particular ifdiffery was now used in only 3 locations, twice in kernel/crash_core.c and once in x86 crash.c.

With that realization, and the fact that we just jettisoned CONFIG_CRASH_MAX_MEMORY_RANGES for a #define, it seemed that there wasn't a compelling need to replace the HOTPLUG_CPU || MEMORY_HOTPLUG with a new CRASH_HOTPLUG Kconfig item.

As I'm re-reading that message, I suspect now the preference is to just to strike this ifdiffery line in this file and have the code always present?

If the preference is actually for CRASH_HOTPLUG, then let me know.

Thanks!
eric