linux-kernel - [PATCH] staging:kpc2000:Fix dubious x

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Message-Id: <20190731183606.2513-1-harshjain32@gmail.com>
Date:   Thu,  1 Aug 2019 00:06:06 +0530
From:   Harsh Jain <harshjain32@...il.com>
To:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Cc:     harshjain32@...il.com
Subject: [PATCH] staging:kpc2000:Fix dubious x | !y sparse warning

Bitwise OR(|) operation with 0 always yield same result.
It fixes dubious x | !y sparse warning.

Signed-off-by: Harsh Jain <harshjain32@...il.com>
---
 drivers/staging/kpc2000/kpc2000_i2c.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/staging/kpc2000/kpc2000_i2c.c b/drivers/staging/kpc2000/kpc2000_i2c.c
index b108da4..5f027d7c 100644
--- a/drivers/staging/kpc2000/kpc2000_i2c.c
+++ b/drivers/staging/kpc2000/kpc2000_i2c.c
@@ -536,29 +536,15 @@ static u32 i801_func(struct i2c_adapter *adapter)
 
 	u32 f =
 		I2C_FUNC_I2C                     | /* 0x00000001 (I enabled this one) */
-		!I2C_FUNC_10BIT_ADDR             | /* 0x00000002 */
-		!I2C_FUNC_PROTOCOL_MANGLING      | /* 0x00000004 */
 		((priv->features & FEATURE_SMBUS_PEC) ? I2C_FUNC_SMBUS_PEC : 0) | /* 0x00000008 */
-		!I2C_FUNC_SMBUS_BLOCK_PROC_CALL  | /* 0x00008000 */
 		I2C_FUNC_SMBUS_QUICK             | /* 0x00010000 */
-		!I2C_FUNC_SMBUS_READ_BYTE        | /* 0x00020000 */
-		!I2C_FUNC_SMBUS_WRITE_BYTE       | /* 0x00040000 */
-		!I2C_FUNC_SMBUS_READ_BYTE_DATA   | /* 0x00080000 */
-		!I2C_FUNC_SMBUS_WRITE_BYTE_DATA  | /* 0x00100000 */
-		!I2C_FUNC_SMBUS_READ_WORD_DATA   | /* 0x00200000 */
-		!I2C_FUNC_SMBUS_WRITE_WORD_DATA  | /* 0x00400000 */
-		!I2C_FUNC_SMBUS_PROC_CALL        | /* 0x00800000 */
-		!I2C_FUNC_SMBUS_READ_BLOCK_DATA  | /* 0x01000000 */
-		!I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | /* 0x02000000 */
 		((priv->features & FEATURE_I2C_BLOCK_READ) ? I2C_FUNC_SMBUS_READ_I2C_BLOCK : 0) | /* 0x04000000 */
 		I2C_FUNC_SMBUS_WRITE_I2C_BLOCK   | /* 0x08000000 */
 
 		I2C_FUNC_SMBUS_BYTE              | /* _READ_BYTE  _WRITE_BYTE */
 		I2C_FUNC_SMBUS_BYTE_DATA         | /* _READ_BYTE_DATA  _WRITE_BYTE_DATA */
 		I2C_FUNC_SMBUS_WORD_DATA         | /* _READ_WORD_DATA  _WRITE_WORD_DATA */
-		I2C_FUNC_SMBUS_BLOCK_DATA        | /* _READ_BLOCK_DATA  _WRITE_BLOCK_DATA */
-		!I2C_FUNC_SMBUS_I2C_BLOCK        | /* _READ_I2C_BLOCK  _WRITE_I2C_BLOCK */
-		!I2C_FUNC_SMBUS_EMUL;              /* _QUICK  _BYTE  _BYTE_DATA  _WORD_DATA  _PROC_CALL  _WRITE_BLOCK_DATA  _I2C_BLOCK _PEC */
+		I2C_FUNC_SMBUS_BLOCK_DATA;	   /* _READ_BLOCK_DATA  _WRITE_BLOCK_DATA */
 	return f;
 }
 
-- 
2.7.4