linux-kernel - [PATCH] um: tlb: Remove unused flush_tlb_mm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20240414211934.393303-1-ivan.orlov0322@gmail.com>
Date: Sun, 14 Apr 2024 22:19:34 +0100
From: Ivan Orlov <ivan.orlov0322@...il.com>
To: richard@....at,
	anton.ivanov@...bridgegreys.com,
	johannes@...solutions.net
Cc: Ivan Orlov <ivan.orlov0322@...il.com>,
	linux-um@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] um: tlb: Remove unused flush_tlb_mm_range function

GCC 11.4.0 produces the following warning when compiling the kernel for
UML architecture (with UML defconfig):

arch/um/kernel/tlb.c:579:6: warning: no previous prototype for ‘flush_tlb_mm_range’ [-Wmissing-prototypes]
  579 | void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,)

This function is not used anywhere. It is not exported with
`EXPORT_SYMBOL` either, and therefore it is not usable for dynamically
loaded modules. Remove this function.

Signed-off-by: Ivan Orlov <ivan.orlov0322@...il.com>
---
 arch/um/kernel/tlb.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 7d050ab0f78a..70b5e47e9761 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -576,12 +576,6 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 }
 EXPORT_SYMBOL(flush_tlb_range);
 
-void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
-			unsigned long end)
-{
-	fix_range(mm, start, end, 0);
-}
-
 void flush_tlb_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
-- 
2.34.1