diff options
| author | Juergen Gross <jgross@suse.com> | 2023-06-14 09:35:00 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2023-06-26 07:47:11 +0200 |
| commit | 3d013424de1efc2c9e68c6c06e76159e467c7ba8 (patch) | |
| tree | 476c74f634383182f2c39f6453449261a38ad5c6 /arch/x86 | |
| parent | 9338c2233b97f97aa68bc42f53b06e90def129d7 (diff) | |
x86/xen: add prototypes for paravirt mmu functions
The paravirt MMU functions called via the PV_CALLEE_SAVE_REGS_THUNK()
macro can't be defined to be static, as the macro is generating a
function via asm() statement calling the paravirt MMU function.
In order to avoid warnings when specifying "-Wmissing-prototypes" for
the build, add local prototypes (there should never be any external
caller of those functions).
Reported-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230614073501.10101-2-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/xen/mmu_pv.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index b3b8d289b9ab..e0a975165de7 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -86,6 +86,22 @@ #include "mmu.h" #include "debugfs.h" +/* + * Prototypes for functions called via PV_CALLEE_SAVE_REGS_THUNK() in order + * to avoid warnings with "-Wmissing-prototypes". + */ +pteval_t xen_pte_val(pte_t pte); +pgdval_t xen_pgd_val(pgd_t pgd); +pmdval_t xen_pmd_val(pmd_t pmd); +pudval_t xen_pud_val(pud_t pud); +p4dval_t xen_p4d_val(p4d_t p4d); +pte_t xen_make_pte(pteval_t pte); +pgd_t xen_make_pgd(pgdval_t pgd); +pmd_t xen_make_pmd(pmdval_t pmd); +pud_t xen_make_pud(pudval_t pud); +p4d_t xen_make_p4d(p4dval_t p4d); +pte_t xen_make_pte_init(pteval_t pte); + #ifdef CONFIG_X86_VSYSCALL_EMULATION /* l3 pud for userspace vsyscall mapping */ static pud_t level3_user_vsyscall[PTRS_PER_PUD] __page_aligned_bss; |