lkml.org 
[lkml]   [2021]   [Jan]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] spi: stm32: update dev_dbg() print format for SPI params
On Mon, Jan 4, 2021 at 10:55 AM Alexandru Ardelean
<alexandru.ardelean@analog.com> wrote:
>
> With the introduction of the 'include/uapi/linux/spi/spi.h' header, the
> type of the macros are enforced to 'unsigned long int' via the _BITUL()
> macro.
>
> This causes some -Wformat warnings in the spi-stm32 driver.
> This patch changes the printf() specifiers from '%d' to '%lu' to
> accommodate for this change.
>
> Fixes: f7005142dace ("spi: uapi: unify SPI modes into a single spi.h header")
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>

LKP also reported this before.

...

> - dev_dbg(spi->dev, "cpol=%d cpha=%d lsb_first=%d cs_high=%d\n",
> + dev_dbg(spi->dev, "cpol=%lu cpha=%lu lsb_first=%lu cs_high=%lu\n",
> spi_dev->mode & SPI_CPOL,
> spi_dev->mode & SPI_CPHA,
> spi_dev->mode & SPI_LSB_FIRST,

Wouldn't the output be a bit awful with all these?

I think the proper fix is to add !! to each bit mask.

--
With Best Regards,
Andy Shevchenko

\
 
 \ /
  Last update: 2021-01-04 14:51    [W:0.058 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site