linux-kernel - [PATCH] RISC-V: Remove unused code from STRICT_KERNEL

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Message-Id: <20200504040319.31423-1-atish.patra@wdc.com>
Date:   Sun,  3 May 2020 21:03:19 -0700
From:   Atish Patra <atish.patra@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Atish Patra <atish.patra@....com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Anup Patel <Anup.Patel@....com>,
        linux-riscv@...ts.infradead.org,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Zong Li <zong.li@...ive.com>
Subject: [PATCH] RISC-V: Remove unused code from STRICT_KERNEL_RWX

This patch removes the unused functions set_kernel_text_rw/ro.
Currently, it is not being invoked from anywhere and no other architecture
(except arm) uses this code. Even in ARM, these functions are not invoked
from anywhere currently.

Fixes: d27c3c90817e ("riscv: add STRICT_KERNEL_RWX support")

Signed-off-by: Atish Patra <atish.patra@....com>
---
 arch/riscv/mm/init.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index b55be44ff9bd..ba60a581e9b6 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -501,22 +501,6 @@ static inline void setup_vm_final(void)
 #endif /* CONFIG_MMU */
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
-void set_kernel_text_rw(void)
-{
-	unsigned long text_start = (unsigned long)_text;
-	unsigned long text_end = (unsigned long)_etext;
-
-	set_memory_rw(text_start, (text_end - text_start) >> PAGE_SHIFT);
-}
-
-void set_kernel_text_ro(void)
-{
-	unsigned long text_start = (unsigned long)_text;
-	unsigned long text_end = (unsigned long)_etext;
-
-	set_memory_ro(text_start, (text_end - text_start) >> PAGE_SHIFT);
-}
-
 void mark_rodata_ro(void)
 {
 	unsigned long text_start = (unsigned long)_text;
-- 
2.26.2