On Sun, 6 May 2007 22:57:32 +0200 Sam Ravnborg <[EMAIL PROTECTED]> wrote:
> On Sun, May 06, 2007 at 02:49:49AM -0400, [EMAIL PROTECTED] wrote: > > On Sat, 05 May 2007 01:49:55 PDT, Andrew Morton said: > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21/2.6.21-mm1/ > > > > MODPOST vmlinux > > WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from > > .text between 'kmem_cache_create' (at offset 0x20dff) and 'cache_reap' > > WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from > > .text between 'kmem_cache_create' (at offset 0x20e41) and 'cache_reap' > > > > Built with CONFIG_SLAB, CONFIG_SMP, x86_64. > > It comes from this code (mm/slab.c): > /* > * For setting up all the kmem_list3s for cache whose buffer_size is same as > * size of kmem_list3. > */ > static void __init set_up_list3s(struct kmem_cache *cachep, int index) > { > int node; > > for_each_online_node(node) { > cachep->nodelists[node] = &initkmem_list3[index + node]; > cachep->nodelists[node]->next_reap = jiffies + > REAPTIMEOUT_LIST3 + > ((unsigned long)cachep) % REAPTIMEOUT_LIST3; > } > } > > It is supposed to be used only during early init and thus marked __init. > And initkmem_list3 is marked __initdata so that matches. > > But set_up_list3s() is used outside __init marked functions and thus result > in an error. > > I do not know how to fix this. > Yes, this is one of those rare places which triggers a warning but where no changes are needed. I'm thinking that we could address this with a new section __nowarn and __nowarndata (or whatever). These will have the same behaviour as regular .text and .data, only the symbol-checking tool would know about them and would suppress the warnings. Perhaps there's some other way of communication this information from the C level down into the checker - I haven't thought about it much. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
