Messages in this thread | | | Date | Thu, 20 Dec 2007 10:56:56 +0100 | From | Jesper Nilsson <> | Subject | Re: What's this __dummy in asm-cris/bitops.h? |
| |
On Wed, Dec 19, 2007 at 08:56:17PM +0100, Clemens Koller wrote: > Hello, > > while looking for some assembly out of order / optimization stuff > for something else, I found some strange code in > .../linux/include/asm-cris/bitops.h:22 > > /* > * Some hacks to defeat gcc over-optimizations.. > */ > struct __dummy { unsigned long a[100]; }; > #define ADDR (*(struct __dummy *) addr) > #define CONST_ADDR (*(const struct __dummy *) addr) > > CONST_ADDR is never used in the kernel. > Maybe some -cris people could have a look.
Hmm... This is very old code, it hasn't changed since 2001 and it is not used anywhere.
I'll send a patch to remove it, thanks for noticing!
> Thanks, > Clemens Koller
/^JN - Jesper Nilsson -- Jesper Nilsson -- jesper.nilsson@axis.com
| |