Hi all,
After merging the ftrace tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:
In file included from arch/powerpc/include/asm/page.h:332,
from arch/powerpc/include/asm/mmu.h:144,
from arch/powerpc/include/asm/paca.h:18,
from arch/powerpc/include/asm/current.h:13,
from include/linux/thread_info.h:23,
from include/asm-generic/preempt.h:5,
from ./arch/powerpc/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:79,
from include/linux/alloc_tag.h:11,
from include/linux/percpu.h:5,
from include/linux/context_tracking_state.h:5,
from include/linux/hardirq.h:5,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from kernel/trace/ring_buffer.c:7:
kernel/trace/ring_buffer.c: In function '__rb_map_vma':
kernel/trace/ring_buffer.c:6286:72: warning: passing argument 1 of 'virt_to_pfn' makes pointer from integer without a cast [-Wint-conversion]
6286 | struct page *page = virt_to_page(cpu_buffer->subbuf_ids[s]);
| ~~~~~~~~~~~~~~~~~~~~~~^~~
| |
| long unsigned int
include/asm-generic/memory_model.h:37:45: note: in definition of macro '__pfn_to_page'
37 | #define __pfn_to_page(pfn) (vmemmap + (pfn))
| ^~~
kernel/trace/ring_buffer.c:6286:37: note: in expansion of macro 'virt_to_page'
6286 | struct page *page = virt_to_page(cpu_buffer->subbuf_ids[s]);
| ^~~~~~~~~~~~
arch/powerpc/include/asm/page.h:228:53: note: expected 'const void *' but argument is of type 'long unsigned int'
228 | static inline unsigned long virt_to_pfn(const void *kaddr)
| ~~~~~~~~~~~~^~~~~
Introduced by commit
117c39200d9d ("ring-buffer: Introducing ring-buffer mapping functions")
My arm multi_v7_defconfig build produced a similar warning.
Is this really intended for v6.10? It seems a bit late.
--
Cheers,
Stephen Rothwell
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