Re: [PATCH 0/4] amd64_edac: misc fixes

[Andrew Morton]

On Sat, 30 May 2009 10:19:54 +0200 Borislav Petkov <petkovbb@xxxxxxxxxxxxxx> wrote:

> Also, I've been thinking about how the old(er)
> toolchain problem can be addressed and one fairly doable thing would be
> if I'd query the gas version in the kernel Makefile and define popcnt
> dependent on it and for older assemblers simply slap in the opcode and
> fixate the operands in an inline assembly so that it works.

We've done that before.  BUG() is one case (for other reasons), I think.

But if we have the code in there which uese the literal opcode, there's
no need to query gas or to add the conditional.

Is popcnt supported on all CPUs?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/