Re: [PATCH] sh: sq: Use the bitmap API when applicable

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Le 26/06/2022 à 12:01, Geert Uytterhoeven a écrit :
Hi Christophe,

On Sat, Jun 25, 2022 at 9:45 AM Christophe JAILLET
<christophe.jaillet@xxxxxxxxxx> wrote:
Using the bitmap API is less verbose than hand writing them.
It also improves the semantic.

Thanks for your patch!

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
I don't cross compile, so this patch is NOT compile-tested.

Why not?

The main reason is:

df
/dev/sdc3    ... 	98% /


Cross-compiling is so easy nowadays?
Many distros even provide cross-compilers ("apt install gcc-sh4-linux-gnu").
Else try https://mirrors.edge.kernel.org/pub/tools/crosstool/.

--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c

@@ -382,7 +381,7 @@ static int __init sq_api_init(void)
         if (unlikely(!sq_cache))
                 return ret;

-       sq_bitmap = kzalloc(size, GFP_KERNEL);
+       sq_bitmap = bitmap_zalloc(nr_pages, GFP_KERNEL);

Perhaps you need #include <linux/bitmap.h>?

or not. See [1].


I don't know, I also didn't bother to cross-compile. Why would I? ;-)

I'll refrain from posting things that I can't compile-test myself in the future.

Sorry for the noise, please just ignore the patch, it was just a clean-up anyway.

CJ


[1]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/sh/kernel/cpu/sh4/sq.c#n12


Gr{oetje,eeting}s,

                         Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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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