On 10/21/15, Arnd Bergmann <a...@arndb.de> wrote: > On Wednesday 21 October 2015 08:56:44 Denis Kirjanov wrote: >> Building with CONFIG_DEBUG_SECTION_MISMATCH >> gives the following warning: >> >> WARNING: vmlinux.o(.text+0x41fa8): Section mismatch in reference from >> the function .msi_bitmap_alloc() to the function >> .init.text:.memblock_virt_alloc_try_nid() >> The function .msi_bitmap_alloc() references >> the function __init .memblock_virt_alloc_try_nid(). >> This is often because .msi_bitmap_alloc lacks a __init >> annotation or the annotation of .memblock_virt_alloc_try_nid is wrong. >> >> Signed-off-by: Denis Kirjanov <k...@linux-powerpc.org> >> > > A patch like this usually requires an explanation why the warning is > a false positive and why there is no way to solve it besides suppressing > the warning.
Because memory allocation in msi_bitmap_alloc use either slab allocator or memblock boot-time allocator so that's why we need the __init_refok for the latter case. I'll add it to the patch description > > Arnd > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
