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[v2] fixes warning

Message ID 20230804200711.65750-1-coolrrsh@gmail.com
State Superseded
Headers show
Series [v2] fixes warning | expand

Commit Message

coolrrsh@gmail.com Aug. 4, 2023, 8:07 p.m. UTC 
From: Rajeshwar R Shinde <coolrrsh@gmail.com>

Typecasting the interrupt number from "unsigned int" to "signed int" to compare with 0(signed int by default).
Declaring interrupt number as "signed int" would violate kernel standards. So typecasting is the possible approach.
The fix is for spi-mpc512x. 

This fixes warning such as:
drivers/spi/spi-mpc512x-psc.c:493:5-13: WARNING: Unsigned expression compared with zero: mps -> irq < 0

Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>
---
 drivers/spi/spi-mpc512x-psc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Greg Kroah-Hartman Aug. 5, 2023, 6:22 a.m. UTC | #1 
On Sat, Aug 05, 2023 at 01:37:11AM +0530, coolrrsh@gmail.com wrote:
> From: Rajeshwar R Shinde <coolrrsh@gmail.com>
> 
> Typecasting the interrupt number from "unsigned int" to "signed int" to compare with 0(signed int by default).
> Declaring interrupt number as "signed int" would violate kernel standards. So typecasting is the possible approach.
> The fix is for spi-mpc52xx.
> 
> This fixes warning such as:
> drivers/spi/spi-mpc52xx-psc.c:332:5-13: WARNING: Unsigned expression compared with zero: mps -> irq < 0
> 
> Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>
> ---
>  drivers/spi/spi-mpc52xx-psc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Your subject lines are still incorrect :(
Mark Brown Aug. 5, 2023, 3:01 p.m. UTC | #2 
On Sat, Aug 05, 2023 at 01:37:10AM +0530, coolrrsh@gmail.com wrote:

> Typecasting the interrupt number from "unsigned int" to "signed int" to compare with 0(signed int by default).
> Declaring interrupt number as "signed int" would violate kernel standards. So typecasting is the possible approach.

Why would it violate kernel standards?

Please submit patches using subject lines reflecting the style for the
subsystem, this makes it easier for people to identify relevant patches.
Look at what existing commits in the area you're changing are doing and
make sure your subject lines visually resemble what they're doing.
There's no need to resubmit to fix this alone.

Please fix your mail client to word wrap within paragraphs at something
substantially less than 80 columns.  Doing this makes your messages much
easier to read and reply to.
diff mbox series

Patch

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 99aeef2..50a4f31 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -490,7 +490,7 @@  static int mpc512x_psc_spi_of_probe(struct platform_device *pdev)
 		(struct mpc512x_psc_fifo *)(tempp + sizeof(struct mpc52xx_psc));
 
 	mps->irq = platform_get_irq(pdev, 0);
-	if (mps->irq < 0)
+	if ((int)mps->irq < 0)
 		return mps->irq;
 
 	ret = devm_request_irq(dev, mps->irq, mpc512x_psc_spi_isr, IRQF_SHARED,