[tip: x86/headers] x86/mm: Remove unused __set_memory_prot()

[tip-bot2 for Kevin Brodsky]

The following commit has been merged into the x86/headers branch of tip:

Commit-ID:     693bbf2a50447353c6a47961e6a7240a823ace02
Gitweb:        https://git.kernel.org/tip/693bbf2a50447353c6a47961e6a7240a823ace02
Author:        Kevin Brodsky <kevin.brodsky@xxxxxxx>
AuthorDate:    Thu, 12 Dec 2024 08:09:03 
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Fri, 28 Feb 2025 17:35:14 +01:00

x86/mm: Remove unused __set_memory_prot()

__set_memory_prot() is unused since:

  5c11f00b09c1 ("x86: remove memory hotplug support on X86_32")

Let's remove it.

Signed-off-by: Kevin Brodsky <kevin.brodsky@xxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241212080904.2089632-2-kevin.brodsky@xxxxxxx
---
 arch/x86/include/asm/set_memory.h |  1 -
 arch/x86/mm/pat/set_memory.c      | 13 -------------
 2 files changed, 14 deletions(-)

diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h
index cc62ef7..6586d53 100644
--- a/arch/x86/include/asm/set_memory.h
+++ b/arch/x86/include/asm/set_memory.h
@@ -38,7 +38,6 @@ int set_memory_rox(unsigned long addr, int numpages);
  * The caller is required to take care of these.
  */
 
-int __set_memory_prot(unsigned long addr, int numpages, pgprot_t prot);
 int _set_memory_uc(unsigned long addr, int numpages);
 int _set_memory_wc(unsigned long addr, int numpages);
 int _set_memory_wt(unsigned long addr, int numpages);
diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c
index ef4514d..b289667 100644
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@ -1942,19 +1942,6 @@ static inline int cpa_clear_pages_array(struct page **pages, int numpages,
 		CPA_PAGES_ARRAY, pages);
 }
 
-/*
- * __set_memory_prot is an internal helper for callers that have been passed
- * a pgprot_t value from upper layers and a reservation has already been taken.
- * If you want to set the pgprot to a specific page protocol, use the
- * set_memory_xx() functions.
- */
-int __set_memory_prot(unsigned long addr, int numpages, pgprot_t prot)
-{
-	return change_page_attr_set_clr(&addr, numpages, prot,
-					__pgprot(~pgprot_val(prot)), 0, 0,
-					NULL);
-}
-
 int _set_memory_uc(unsigned long addr, int numpages)
 {
 	/*