c5aebb53b3
arch_vmap_pud_supported() and arch_vmap_pmd_supported() are
expected to constant-fold to false when RADIX is not enabled.
Force inlining in order to avoid following failure which
leads to unexpected call of non-existing pud_set_huge() and
pmd_set_huge() on powerpc 8xx.
In function 'pud_huge_tests',
inlined from 'debug_vm_pgtable' at mm/debug_vm_pgtable.c:1399:2:
./arch/powerpc/include/asm/vmalloc.h:9:33: warning: inlining failed in call to 'arch_vmap_pud_supported.isra': call is unlikely and code size would grow [-Winline]
9 | #define arch_vmap_pud_supported arch_vmap_pud_supported
| ^~~~~~~~~~~~~~~~~~~~~~~
./arch/powerpc/include/asm/vmalloc.h:10:20: note: in expansion of macro 'arch_vmap_pud_supported'
10 | static inline bool arch_vmap_pud_supported(pgprot_t prot)
| ^~~~~~~~~~~~~~~~~~~~~~~
./arch/powerpc/include/asm/vmalloc.h:9:33: note: called from here
9 | #define arch_vmap_pud_supported arch_vmap_pud_supported
mm/debug_vm_pgtable.c:458:14: note: in expansion of macro 'arch_vmap_pud_supported'
458 | if (!arch_vmap_pud_supported(args->page_prot) ||
| ^~~~~~~~~~~~~~~~~~~~~~~
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402131836.OU1TDuoi-lkp@intel.com/
Fixes: 8309c9d717 ("powerpc: inline huge vmap supported functions")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/bbd84ad52bf377e8d3b5865a906f2dc5d99964ba.1707832677.git.christophe.leroy@csgroup.eu
25 lines
554 B
C
25 lines
554 B
C
#ifndef _ASM_POWERPC_VMALLOC_H
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#define _ASM_POWERPC_VMALLOC_H
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#include <asm/mmu.h>
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#include <asm/page.h>
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#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
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#define arch_vmap_pud_supported arch_vmap_pud_supported
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static __always_inline bool arch_vmap_pud_supported(pgprot_t prot)
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{
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/* HPT does not cope with large pages in the vmalloc area */
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return radix_enabled();
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}
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#define arch_vmap_pmd_supported arch_vmap_pmd_supported
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static __always_inline bool arch_vmap_pmd_supported(pgprot_t prot)
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{
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return radix_enabled();
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}
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#endif
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#endif /* _ASM_POWERPC_VMALLOC_H */
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