linux-kernel - Re: [PATCH] drm/i915/gem: fix non-SMP build failure

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Date:   Mon, 25 Jan 2021 12:34:40 +0000
From:   Chris Wilson <chris@...is-wilson.co.uk>
To:     Arnd Bergmann <arnd@...nel.org>, Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Matthew Auld <matthew.auld@...el.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>
Cc:     intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/i915/gem: fix non-SMP build failure

Quoting Arnd Bergmann (2021-01-25 12:25:34)
> From: Arnd Bergmann <arnd@...db.de>
> 
> The x86-specific wbinvd_on_all_cpus() function is exported
> through asm/smp.h, causing a build failure in the i915 driver
> when SMP is disabled:
> 
> drivers/gpu/drm/i915/i915_gem.c:1182:2: error: implicit declaration of function 'wbinvd_on_all_cpus' [-Werror,-Wimplicit-function-declaration]

I thought the code was already in i915_gem_pm.c (which included smp.h);
it is now.
-Chris