diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2023-08-09 11:07:13 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-08-16 16:54:49 +0300 |
| commit | 58b6fed89ab0f602de0d143c617c29c3d4c67429 (patch) | |
| tree | d05027625a98d1e5054d1198030684fdcdac924b /arch/powerpc/kvm | |
| parent | fe8aa8e3379326ecb77203cae50e8e83c054aedc (diff) | |
| download | linux-58b6fed89ab0f602de0d143c617c29c3d4c67429.tar.xz | |
powerpc: Make virt_to_pfn() a static inline
Making virt_to_pfn() a static inline taking a strongly typed
(const void *) makes the contract of a passing a pointer of that
type to the function explicit and exposes any misuse of the
macro virt_to_pfn() acting polymorphic and accepting many types
such as (void *), (unitptr_t) or (unsigned long) as arguments
without warnings.
Move the virt_to_pfn() and related functions below the
declaration of __pa() so it compiles.
For symmetry do the same with pfn_to_kaddr().
As the file is included right into the linker file, we need
to surround the functions with ifndef __ASSEMBLY__ so we
don't cause compilation errors.
The conversion moreover exposes the fact that pmd_page_vaddr()
was returning an unsigned long rather than a const void * as
could be expected, so all the sites defining pmd_page_vaddr()
had to be augmented as well.
Finally the KVM code in book3s_64_mmu_hv.c was passing an
unsigned int to virt_to_phys() so fix that up with a cast so the
result compiles.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[mpe: Fixup kfence.h, simplify pfn_to_kaddr() & pmd_page_vaddr()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230809-virt-to-phys-powerpc-v1-1-12e912a7d439@linaro.org
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 7f765d5ad436..efd0ebf70a5e 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -182,7 +182,7 @@ void kvmppc_free_hpt(struct kvm_hpt_info *info) vfree(info->rev); info->rev = NULL; if (info->cma) - kvm_free_hpt_cma(virt_to_page(info->virt), + kvm_free_hpt_cma(virt_to_page((void *)info->virt), 1 << (info->order - PAGE_SHIFT)); else if (info->virt) free_pages(info->virt, info->order - PAGE_SHIFT); |