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authorAtish Patra <atish.patra@wdc.com>2020-05-03 21:03:19 -0700
committerPalmer Dabbelt <palmerdabbelt@google.com>2020-05-05 17:02:14 -0700
commit73cb8e2a5863ccc5215660f5123db621bd57dff7 (patch)
tree48e94f978d24d569cb2b918059105195c2132f58 /arch
parentd6d5161280b3d57163f5310f0a0007cdeb729984 (diff)
downloadlinux-73cb8e2a5863ccc5215660f5123db621bd57dff7.tar.bz2
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@wdc.com> Reviewed-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/riscv/include/asm/set_memory.h8
-rw-r--r--arch/riscv/mm/init.c16
2 files changed, 0 insertions, 24 deletions
diff --git a/arch/riscv/include/asm/set_memory.h b/arch/riscv/include/asm/set_memory.h
index c38df4771c09..4c5bae7ca01c 100644
--- a/arch/riscv/include/asm/set_memory.h
+++ b/arch/riscv/include/asm/set_memory.h
@@ -22,14 +22,6 @@ static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
#endif
-#ifdef CONFIG_STRICT_KERNEL_RWX
-void set_kernel_text_ro(void);
-void set_kernel_text_rw(void);
-#else
-static inline void set_kernel_text_ro(void) { }
-static inline void set_kernel_text_rw(void) { }
-#endif
-
int set_direct_map_invalid_noflush(struct page *page);
int set_direct_map_default_noflush(struct page *page);
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 5b813532db59..27a334106708 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -502,22 +502,6 @@ 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;