nfc: s3fwrn5: Constify s3fwrn5_fw_info when not modified

Two functions accept pointer to struct s3fwrn5_fw_info but do not
modify the contents.  Make them const so the code is a little bit safer.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/nfc/s3fwrn5/firmware.c

@@ -348,7 +348,7 @@ static int s3fwrn5_fw_get_base_addr(
 }
 
 static inline bool
-s3fwrn5_fw_is_custom(struct s3fwrn5_fw_cmd_get_bootinfo_rsp *bootinfo)
+s3fwrn5_fw_is_custom(const struct s3fwrn5_fw_cmd_get_bootinfo_rsp *bootinfo)
 {
 	return !!bootinfo->hw_version[2];
 }
@@ -399,7 +399,7 @@ int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info)
 	return ret;
 }
 
-bool s3fwrn5_fw_check_version(struct s3fwrn5_fw_info *fw_info, u32 version)
+bool s3fwrn5_fw_check_version(const struct s3fwrn5_fw_info *fw_info, u32 version)
 {
 	struct s3fwrn5_fw_version *new = (void *) &fw_info->fw.version;
 	struct s3fwrn5_fw_version *old = (void *) &version;

drivers/nfc/s3fwrn5/firmware.h

@@ -91,7 +91,7 @@ struct s3fwrn5_fw_info {
 
 void s3fwrn5_fw_init(struct s3fwrn5_fw_info *fw_info, const char *fw_name);
 int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info);
-bool s3fwrn5_fw_check_version(struct s3fwrn5_fw_info *fw_info, u32 version);
+bool s3fwrn5_fw_check_version(const struct s3fwrn5_fw_info *fw_info, u32 version);
 int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info);
 void s3fwrn5_fw_cleanup(struct s3fwrn5_fw_info *fw_info);