Commit ff924c5a authored Sep 01, 2018 by Randy Dunlap Committed by Thomas Gleixner Sep 02, 2018

x86/pti: Fix section mismatch warning/error

Fix the section mismatch warning in arch/x86/mm/pti.c:

WARNING: vmlinux.o(.text+0x6972a): Section mismatch in reference from the function pti_clone_pgtable() to the function .init.text:pti_user_pagetable_walk_pte()
The function pti_clone_pgtable() references
the function __init pti_user_pagetable_walk_pte().
This is often because pti_clone_pgtable lacks a __init
annotation or the annotation of pti_user_pagetable_walk_pte is wrong.
FATAL: modpost: Section mismatches detected.

Fixes: 85900ea5 ("x86/pti: Map the vsyscall page if needed")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/43a6d6a3-d69d-5eda-da09-0b1c88215a2a@infradead.org

parent e78e5a91

arch/x86/mm/pti.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -248,7 +248,7 @@ static pmd_t *pti_user_pagetable_walk_pmd(unsigned long address)
		*
		* Returns a pointer to a PTE on success, or NULL on failure.
		*/
		static __init pte_t *pti_user_pagetable_walk_pte(unsigned long address)
		static pte_t *pti_user_pagetable_walk_pte(unsigned long address)
		{
		gfp_t gfp = (GFP_KERNEL \| __GFP_NOTRACK \| __GFP_ZERO);
		pmd_t *pmd;

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