From: Alexandre Torgue <alexandre.torgue@st.com>
To: Wolfram Sang <wsa@the-dreams.de>, Colin King <colin.king@canonical.com>
Cc: linux-arm-kernel@lists.infradead.org,
kernel-janitors@vger.kernel.org, linux-i2c@vger.kernel.org,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i2c-stm32f4: remove redundant initialization of pointer reg
Date: Tue, 27 Feb 2018 08:44:55 +0100 [thread overview]
Message-ID: <25b0397b-5df3-2f5c-a18f-238db83205da@st.com> (raw)
In-Reply-To: <20180226200639.tfll2y4efepm2sos@ninjato>
Hi,
On 02/26/2018 09:06 PM, Wolfram Sang wrote:
> On Tue, Jan 16, 2018 at 05:44:04PM +0000, Colin King wrote:
>> From: Colin Ian King <colin.king@canonical.com>
>>
>> The pointer reg is assigned a value that is never read, it is later
>> overwritten with a new value, hence the redundant initialization can
>> be removed.
>>
>> Cleans up clang warning:
>> drivers/i2c/busses/i2c-stm32f4.c:352:16: warning: Value stored to 'reg'
>> during its initialization is never read
>>
>> Signed-off-by: Colin Ian King <colin.king@canonical.com>
>
> Maxime? Alexandre? Are you OK with this patch?
Sorry for delay.
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
regards
alex
>
>> ---
>> drivers/i2c/busses/i2c-stm32f4.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/i2c/busses/i2c-stm32f4.c b/drivers/i2c/busses/i2c-stm32f4.c
>> index 47c8d00de53f..ba600d77a3f8 100644
>> --- a/drivers/i2c/busses/i2c-stm32f4.c
>> +++ b/drivers/i2c/busses/i2c-stm32f4.c
>> @@ -349,7 +349,7 @@ static void stm32f4_i2c_read_msg(struct stm32f4_i2c_dev *i2c_dev)
>> static void stm32f4_i2c_terminate_xfer(struct stm32f4_i2c_dev *i2c_dev)
>> {
>> struct stm32f4_i2c_msg *msg = &i2c_dev->msg;
>> - void __iomem *reg = i2c_dev->base + STM32F4_I2C_CR2;
>> + void __iomem *reg;
>>
>> stm32f4_i2c_disable_irq(i2c_dev);
>>
>> --
>> 2.15.1
>>
prev parent reply other threads:[~2018-02-27 7:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-16 17:44 [PATCH] i2c-stm32f4: remove redundant initialization of pointer reg Colin King
2018-02-26 20:06 ` Wolfram Sang
2018-02-27 7:44 ` Alexandre Torgue [this message]
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