[PATCH 01/22] xen/arm: traps: Constify show_registers parameters

From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: Julien Grall <julien.grall@arm.com>, sstabellini@kernel.org
Subject: [PATCH 01/22] xen/arm: traps: Constify show_registers parameters
Date: Thu, 18 Oct 2018 14:20:48 +0100	[thread overview]
Message-ID: <20181018132109.31192-2-julien.grall@arm.com> (raw)
In-Reply-To: <20181018132109.31192-1-julien.grall@arm.com>

show_registers helpers are not meant to modify any parameters.
So constify them.

Signed-off-by: Julien Grall <julien.grall@arm.com>
---
 xen/arch/arm/traps.c            | 14 +++++++-------
 xen/include/asm-arm/processor.h |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 51d2e42c77..9eec51ea90 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -787,8 +787,8 @@ static const char *mode_string(uint32_t cpsr)
     return mode_strings[mode] ? : "Unknown";
 }
 
-static void show_registers_32(struct cpu_user_regs *regs,
-                              struct reg_ctxt *ctxt,
+static void show_registers_32(const struct cpu_user_regs *regs,
+                              const struct reg_ctxt *ctxt,
                               int guest_mode,
                               const struct vcpu *v)
 {
@@ -864,8 +864,8 @@ static void show_registers_32(struct cpu_user_regs *regs,
 }
 
 #ifdef CONFIG_ARM_64
-static void show_registers_64(struct cpu_user_regs *regs,
-                              struct reg_ctxt *ctxt,
+static void show_registers_64(const struct cpu_user_regs *regs,
+                              const struct reg_ctxt *ctxt,
                               int guest_mode,
                               const struct vcpu *v)
 {
@@ -925,8 +925,8 @@ static void show_registers_64(struct cpu_user_regs *regs,
 }
 #endif
 
-static void _show_registers(struct cpu_user_regs *regs,
-                            struct reg_ctxt *ctxt,
+static void _show_registers(const struct cpu_user_regs *regs,
+                            const struct reg_ctxt *ctxt,
                             int guest_mode,
                             const struct vcpu *v)
 {
@@ -981,7 +981,7 @@ static void _show_registers(struct cpu_user_regs *regs,
     printk("\n");
 }
 
-void show_registers(struct cpu_user_regs *regs)
+void show_registers(const struct cpu_user_regs *regs)
 {
     struct reg_ctxt ctxt;
     ctxt.sctlr_el1 = READ_SYSREG(SCTLR_EL1);
diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h
index 8016cf306f..efa33b4665 100644
--- a/xen/include/asm-arm/processor.h
+++ b/xen/include/asm-arm/processor.h
@@ -794,7 +794,7 @@ void init_traps(void);
 void panic_PAR(uint64_t par);
 
 void show_execution_state(struct cpu_user_regs *regs);
-void show_registers(struct cpu_user_regs *regs);
+void show_registers(const struct cpu_user_regs *regs);
 //#define dump_execution_state() run_in_exception_handler(show_execution_state)
 #define dump_execution_state() WARN()
 
-- 
2.11.0


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