Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Date | Tue, 2 Jan 2018 15:20:59 +0100 | Subject | Re: [PATCH] m32r: fix readl/writel prototypes |
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Hi Arnd,
On Tue, Jan 2, 2018 at 11:56 AM, Arnd Bergmann <arnd@arndb.de> wrote: > All other architectures use 'unsigned int' as the data in readl/write, > but m32r uses 'unsigned long', leading to lots of harmless build warnings > like: > > drivers/mmc/host/dw_mmc.c: In function 'dw_mci_regs_show': > drivers/mmc/host/dw_mmc.c:168:31: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=] > seq_printf(s, "STATUS:\t0x%08x\n", mci_readl(host, STATUS));
Thanks for fixing this!
BTW, I started fixing this a while ago, too, but of course I dived too deep into arch/m32r/platforms/*/io.c (there are plenty of more type inconsistencies with asm-generic/io.h!), and gave up after ca. 500 lines of changes ;-)
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
With the below fixed:
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> --- a/arch/m32r/include/asm/io.h > +++ b/arch/m32r/include/asm/io.h > @@ -108,9 +108,9 @@ static inline unsigned short _readw(unsigned long addr) > return *(volatile unsigned short __force *)addr; > } > > -static inline unsigned long _readl(unsigned long addr) > +static inline unsigned int _readl(unsigned long addr) > { > - return *(volatile unsigned long __force *)addr; > + return *(volatile unsigned int __force *)addr; > } > > static inline void _writeb(unsigned char b, unsigned long addr) > @@ -123,9 +123,9 @@ static inline void _writew(unsigned short w, unsigned long addr) > *(volatile unsigned short __force *)addr = w; > } > > -static inline void _writel(unsigned long l, unsigned long addr) > +static inline void _writel(unsigned long l, unsigned int addr)
Don't you want to change the type of "l" instead of the type of "addr"?
> { > - *(volatile unsigned long __force *)addr = l; > + *(volatile unsigned int __force *)addr = l; > }
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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