[RFC PATCH v2 1/2] cpuidle: Add common init interface and idle functionality
Rob Lee
rob.lee at linaro.org
Thu Jan 5 11:42:57 EST 2012
On 5 January 2012 03:32, Russell King - ARM Linux
<linux at arm.linux.org.uk> wrote:
> On Wed, Dec 14, 2011 at 01:02:05AM -0600, Robert Lee wrote:
>> + asm("b 1f; .align 5; 1:");
>> + asm("mcr p15, 0, r0, c7, c10, 4"); /* drain write buffer */
>
> Err, no. The compiler is free to add whatever instructions it sees
> fit between these two asm() statements.
>
> If you want to ask the compiler to issue a set of assembly instructions
> as a block, you have to use just one asm() statement.
Thanks. I will fix that in v3.
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