Le 11/04/2018 à 10:41, Laurent Dufour a écrit :
On 11/04/2018 10:33, Michal Hocko wrote:
On Wed 11-04-18 10:03:36, Laurent Dufour wrote:
@@ -881,7 +876,8 @@ struct page *_vm_normal_page(struct vm_area_struct *vma,
unsigned long addr,
if (is_zero_pfn(pfn))
return NULL;
-check_pfn:
+
+check_pfn: __maybe_unused
if (unlikely(pfn > highest_memmap_pfn)) {
print_bad_pte(vma, addr, pte, NULL);
return NULL;
@@ -891,7 +887,7 @@ struct page *_vm_normal_page(struct vm_area_struct *vma,
unsigned long addr,
* NOTE! We still have PageReserved() pages in the page tables.
* eg. VDSO mappings can cause them to exist.
*/
-out:
+out: __maybe_unused
return pfn_to_page(pfn);
Why do we need this ugliness all of the sudden?
Indeed the compiler doesn't complaint but in theory it should since these
labels are not used depending on CONFIG_ARCH_HAS_PTE_SPECIAL.
Why should it complain ?
Regards
Christophe
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