[PATCH v4 3/7] lib: sbi: change prototype of sbi_trap_redirect

[Bo Gan]

sbi_trap_redirect now uses const pointer to `trap`.
This ensures the caller that we never change `trap` in sbi_trap_redirect.

Signed-off-by: Bo Gan <ganboing at gmail.com>
Reviewed-by: Anup Patel <anup at brainfault.org>
---
 include/sbi/sbi_trap.h | 2 +-
 lib/sbi/sbi_trap.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/sbi/sbi_trap.h b/include/sbi/sbi_trap.h
index a562b95..2727bdb 100644
--- a/include/sbi/sbi_trap.h
+++ b/include/sbi/sbi_trap.h
@@ -225,7 +225,7 @@ static inline unsigned long sbi_regs_gva(const struct sbi_trap_regs *regs)
 }
 
 int sbi_trap_redirect(struct sbi_trap_regs *regs,
-		      struct sbi_trap_info *trap);
+		      const struct sbi_trap_info *trap);
 
 struct sbi_trap_regs *sbi_trap_handler(struct sbi_trap_regs *regs);
 
diff --git a/lib/sbi/sbi_trap.c b/lib/sbi/sbi_trap.c
index 145db4b..1024981 100644
--- a/lib/sbi/sbi_trap.c
+++ b/lib/sbi/sbi_trap.c
@@ -84,7 +84,7 @@ static void __noreturn sbi_trap_error(const char *msg, int rc,
  * @return 0 on success and negative error code on failure
  */
 int sbi_trap_redirect(struct sbi_trap_regs *regs,
-		      struct sbi_trap_info *trap)
+		      const struct sbi_trap_info *trap)
 {
 	ulong hstatus, vsstatus, prev_mode;
 #if __riscv_xlen == 32
-- 
2.7.4