I went to go use the shiny new %pa specifier:
void test_printk_pa(void)
{
phys_addr_t p = 0x1234;
printk("p: %pa\n", p);
}
but gcc is spewing out warnings at me:
> arch/x86/mm/physaddr.c: In function ‘test_printk_pa’:
> arch/x86/mm/physaddr.c:95:2: warning: format ‘%p’ expects argument of type
> ‘void *’, but argument 2 has type ‘phys_addr_t’ [-Wformat]
I assume that's because gcc doesn't know about '%pa', and just assumes
it's a plain '%p'. Should we be turning these warnings off somehow?
Plus when I actually go to run it, vsnprintf() crashes the kernel, which
usually happens if printk()'s format doesn't match the size of its
arguments.
Am I doing something really stupid here?
This is using a 32-bit i386 kernel.
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