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

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Date:   Fri, 9 Aug 2019 12:54:58 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-next: build failure after merge of the sound tree

Hi all,

After merging the sound tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

sound/hda/hdac_bus.c: In function 'snd_hdac_aligned_read':
sound/hda/hdac_bus.c:228:6: error: implicit declaration of function 'readl'; did you mean 'd_real'? [-Werror=implicit-function-declaration]
  v = readl(aligned_addr);
      ^~~~~
      d_real
sound/hda/hdac_bus.c: In function 'snd_hdac_aligned_write':
sound/hda/hdac_bus.c:244:2: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration]
  writel(v, aligned_addr);
  ^~~~~~

Caused by commit

  19abfefd4c76 ("ALSA: hda: Direct MMIO accesses")

I have applied the following patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Fri, 9 Aug 2019 12:50:25 +1000
Subject: [PATCH] ALSA: hda: readl/writel need linux/io.h

Fixes: 19abfefd4c76 ("ALSA: hda: Direct MMIO accesses")
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 sound/hda/hdac_bus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/hda/hdac_bus.c b/sound/hda/hdac_bus.c
index dc2523ef7d98..cd25e2b3f7f2 100644
--- a/sound/hda/hdac_bus.c
+++ b/sound/hda/hdac_bus.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/export.h>
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell

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