sysemu/tpm: Clean up global variable shadowing

Fix:

  softmmu/tpm.c:178:59: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
  int tpm_config_parse(QemuOptsList *opts_list, const char *optarg)
                                                            ^
  /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/getopt.h:77:14: note: previous declaration is here
  extern char *optarg;                    /* getopt(3) external variables */
               ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004120019.93101-16-philmd@linaro.org>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index 66e3b45..1ee568b 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -17,7 +17,7 @@
 
 #ifdef CONFIG_TPM
 
-int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
+int tpm_config_parse(QemuOptsList *opts_list, const char *optstr);
 int tpm_init(void);
 void tpm_cleanup(void);
 
diff --git a/softmmu/tpm.c b/softmmu/tpm.c
index 578563f..7164ea7 100644
--- a/softmmu/tpm.c
+++ b/softmmu/tpm.c
@@ -175,15 +175,15 @@ int tpm_init(void)
  * Parse the TPM configuration options.
  * To display all available TPM backends the user may use '-tpmdev help'
  */
-int tpm_config_parse(QemuOptsList *opts_list, const char *optarg)
+int tpm_config_parse(QemuOptsList *opts_list, const char *optstr)
 {
     QemuOpts *opts;
 
-    if (!strcmp(optarg, "help")) {
+    if (!strcmp(optstr, "help")) {
         tpm_display_backend_drivers();
         return -1;
     }
-    opts = qemu_opts_parse_noisily(opts_list, optarg, true);
+    opts = qemu_opts_parse_noisily(opts_list, optstr, true);
     if (!opts) {
         return -1;
     }