The following commit has been merged into the x86/cleanups branch of tip: Commit-ID: 5bacdc0982f2b343afa5adbb80517d3392a7e357 Gitweb: https://git.kernel.org/tip/5bacdc0982f2b343afa5adbb80517d3392a7e357 Author: Benjamin Thiel <b.thiel@xxxxxxxxx> AuthorDate: Fri, 27 Mar 2020 11:26:06 +01:00 Committer: Borislav Petkov <bp@xxxxxxx> CommitterDate: Fri, 27 Mar 2020 11:26:06 +01:00 x86/mm/set_memory: Fix -Wmissing-prototypes warnings Add missing includes and move prototypes into the header set_memory.h in order to fix -Wmissing-prototypes warnings. [ bp: Add ifdeffery around arch_invalidate_pmem() ] Signed-off-by: Benjamin Thiel <b.thiel@xxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Link: https://lkml.kernel.org/r/20200320145028.6013-1-b.thiel@xxxxxxxxx --- arch/x86/include/asm/set_memory.h | 2 ++ arch/x86/mm/pat/set_memory.c | 3 +++ arch/x86/mm/pti.c | 8 +------- 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h index 64c3dce..950532c 100644 --- a/arch/x86/include/asm/set_memory.h +++ b/arch/x86/include/asm/set_memory.h @@ -46,6 +46,8 @@ int set_memory_4k(unsigned long addr, int numpages); int set_memory_encrypted(unsigned long addr, int numpages); int set_memory_decrypted(unsigned long addr, int numpages); int set_memory_np_noalias(unsigned long addr, int numpages); +int set_memory_nonglobal(unsigned long addr, int numpages); +int set_memory_global(unsigned long addr, int numpages); int set_pages_array_uc(struct page **pages, int addrinarray); int set_pages_array_wc(struct page **pages, int addrinarray); diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c index c4aedd0..6d54240 100644 --- a/arch/x86/mm/pat/set_memory.c +++ b/arch/x86/mm/pat/set_memory.c @@ -15,6 +15,7 @@ #include <linux/gfp.h> #include <linux/pci.h> #include <linux/vmalloc.h> +#include <linux/libnvdimm.h> #include <asm/e820/api.h> #include <asm/processor.h> @@ -304,11 +305,13 @@ void clflush_cache_range(void *vaddr, unsigned int size) } EXPORT_SYMBOL_GPL(clflush_cache_range); +#ifdef CONFIG_ARCH_HAS_PMEM_API void arch_invalidate_pmem(void *addr, size_t size) { clflush_cache_range(addr, size); } EXPORT_SYMBOL_GPL(arch_invalidate_pmem); +#endif static void __cpa_flush_all(void *arg) { diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 44a9f06..843aa10 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -39,6 +39,7 @@ #include <asm/tlbflush.h> #include <asm/desc.h> #include <asm/sections.h> +#include <asm/set_memory.h> #undef pr_fmt #define pr_fmt(fmt) "Kernel/User page tables isolation: " fmt @@ -555,13 +556,6 @@ static inline bool pti_kernel_image_global_ok(void) } /* - * This is the only user for these and it is not arch-generic - * like the other set_memory.h functions. Just extern them. - */ -extern int set_memory_nonglobal(unsigned long addr, int numpages); -extern int set_memory_global(unsigned long addr, int numpages); - -/* * For some configurations, map all of kernel text into the user page * tables. This reduces TLB misses, especially on non-PCID systems. */
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