linux-kernel - [PATCH v2 6/6] spi: altera: fix size mismatch on 64 bit processors

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Message-Id: <1592493910-30473-4-git-send-email-yilun.xu@intel.com>
Date:   Thu, 18 Jun 2020 23:25:10 +0800
From:   Xu Yilun <yilun.xu@...el.com>
To:     broonie@...nel.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     trix@...hat.com, yilun.xu@...el.com, hao.wu@...el.com,
        matthew.gerlach@...ux.intel.com, russell.h.weight@...el.com
Subject: [PATCH v2 6/6] spi: altera: fix size mismatch on 64 bit processors

From: Matthew Gerlach <matthew.gerlach@...ux.intel.com>

The spi-altera driver was originally written with a 32
bit processor, where sizeof(unsigned long) is 4.  On a
64 bit processor sizeof(unsigned long) is 8.  Change the structure
member to u32 to match the actual size of the control
register.

Signed-off-by: Matthew Gerlach <matthew.gerlach@...ux.intel.com>
Signed-off-by: Xu Yilun <yilun.xu@...el.com>
---
 drivers/spi/spi-altera.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index 4f7717f..d91c093 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -53,7 +53,7 @@ struct altera_spi {
 	int len;
 	int count;
 	int bytes_per_word;
-	unsigned long imr;
+	u32 imr;
 
 	/* data buffers */
 	const unsigned char *tx;
-- 
2.7.4