attribute __force?

atmurali · 12-03-2009, 07:30 AM

Hi,

What is the function of attribute __force declared in include/linux/compiler.h?

I am actually trying to understand how the I/O ports are accessed in linux?

Please help me

cladisch · 12-03-2009, 09:56 AM

These and similar attributes are used to check correctness when using the sparse tool. For example, it can warn about code that interchanges little- and big-endian values, or that mixes user space and kernel space pointers.

These attributes have no effect on the 'real' C compiler.

atmurali · 12-03-2009, 11:58 PM

Oh,
Thanks alot.

Thats why I cant access a kernel space io address using writel( , );
Thank You verymuch.