linux-kernel - [PATCH 5.4 070/222] drm/i915: Add missing include file <linux/math64.h>

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Date:   Wed, 22 Jan 2020 10:27:36 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hulk Robot <hulkci@...wei.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
Subject: [PATCH 5.4 070/222] drm/i915: Add missing include file <linux/math64.h>

From: YueHaibing <yuehaibing@...wei.com>

commit ea38aa2ea5b0969776f0a47f174ce928a22be803 upstream.

Fix build error:
./drivers/gpu/drm/i915/selftests/i915_random.h: In function i915_prandom_u32_max_state:
./drivers/gpu/drm/i915/selftests/i915_random.h:48:23: error:
 implicit declaration of function mul_u32_u32; did you mean mul_u64_u32_div? [-Werror=implicit-function-declaration]
  return upper_32_bits(mul_u32_u32(prandom_u32_state(state), ep_ro));

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: 7ce5b6850b47 ("drm/i915/selftests: Use mul_u32_u32() for 32b x 32b -> 64b result")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107135014.36472-1-yuehaibing@huawei.com
(cherry picked from commit 62bf5465b26d1f502430b9c654be7d16bf2e242d)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/i915/selftests/i915_random.h |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/i915/selftests/i915_random.h
+++ b/drivers/gpu/drm/i915/selftests/i915_random.h
@@ -25,6 +25,7 @@
 #ifndef __I915_SELFTESTS_RANDOM_H__
 #define __I915_SELFTESTS_RANDOM_H__
 
+#include <linux/math64.h>
 #include <linux/random.h>
 
 #include "../i915_selftest.h"