linux-kernel - [PATCH 3.19.y-ckt 20/54] i2c: cpm: Fix build break due to incompatible pointer types

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Message-Id: <1462838713-31343-21-git-send-email-kamal@canonical.com>
Date:	Mon,  9 May 2016 17:04:39 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Michael Ellerman <mpe@...erman.id.au>,
	Wolfram Sang <wsa@...-dreams.de>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 20/54] i2c: cpm: Fix build break due to incompatible pointer types

3.19.8-ckt21 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Michael Ellerman <mpe@...erman.id.au>

commit 609d5a1b2b35bb62b4b3750396e55453160c2a17 upstream.

Since commit ea8daa7b9784 ("kbuild: Add option to turn incompatible
pointer check into error"), assignments from an incompatible pointer
types have become a hard error, eg:

  drivers/i2c/busses/i2c-cpm.c:545:91: error: passing argument 3 of
  'dma_alloc_coherent' from incompatible pointer type

Fix the build break by converting txdma & rxdma to dma_addr_t.

Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Fixes: ea8daa7b9784
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/i2c/busses/i2c-cpm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index 2d46653..ecf0ee4 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -116,8 +116,8 @@ struct cpm_i2c {
 	cbd_t __iomem *rbase;
 	u_char *txbuf[CPM_MAXBD];
 	u_char *rxbuf[CPM_MAXBD];
-	u32 txdma[CPM_MAXBD];
-	u32 rxdma[CPM_MAXBD];
+	dma_addr_t txdma[CPM_MAXBD];
+	dma_addr_t rxdma[CPM_MAXBD];
 };
 
 static irqreturn_t cpm_i2c_interrupt(int irq, void *dev_id)
-- 
2.7.4