linux-kernel - linux-next: build failure after merge of the tip tree

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Date:   Mon, 13 Dec 2021 17:08:50 +0000
From:   broonie@...nel.org
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the tip tree

Hi all,

After merging the tip tree, today's linux-next build (x86 allmodconfig)
failed like this:

In file included from /tmp/next/build/drivers/gpu/drm/i915/intel_device_info.h:32,
                 from /tmp/next/build/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:11,
                 from /tmp/next/build/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c:11:
/tmp/next/build/drivers/gpu/drm/i915/display/intel_display.h:643:39: error: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
  643 | bool intel_modeset_probe_defer(struct pci_dev *pdev);
      |                                       ^~~~~~~
cc1: all warnings being treated as errors

I didn't investigate too closely exactly which commit caused this and
fixed it up as below:

diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 4b688a9727b39..377790393a855 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -57,6 +57,7 @@ struct intel_plane;
 struct intel_plane_state;
 struct intel_remapped_info;
 struct intel_rotation_info;
+struct pci_dev;
 
 enum i915_gpio {
 	GPIOA,