bulk: Do not declare function prototypes using 'extern' keyword

By default, C function prototypes declared in headers are visible,
so there is no need to declare them as 'extern' functions.
Remove this redundancy in a single bulk commit; do not modify:

  - meson.build (used to check function availability at runtime)
  - pc-bios/
  - libdecnumber/
  - tests/
  - *.c

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230605175647.88395-5-philmd@linaro.org>

1 files changed, 6 insertions, 8 deletions

diff --git a/include/crypto/secret_common.h b/include/crypto/secret_common.h
index 42c7ff7af6..a0a22e1abd 100644
--- a/include/crypto/secret_common.h
+++ b/include/crypto/secret_common.h
@@ -48,13 +48,11 @@ struct QCryptoSecretCommonClass {
 };
 
 
-extern int qcrypto_secret_lookup(const char *secretid,
-                                 uint8_t **data,
-                                 size_t *datalen,
-                                 Error **errp);
-extern char *qcrypto_secret_lookup_as_utf8(const char *secretid,
-                                           Error **errp);
-extern char *qcrypto_secret_lookup_as_base64(const char *secretid,
-                                             Error **errp);
+int qcrypto_secret_lookup(const char *secretid,
+                          uint8_t **data,
+                          size_t *datalen,
+                          Error **errp);
+char *qcrypto_secret_lookup_as_utf8(const char *secretid, Error **errp);
+char *qcrypto_secret_lookup_as_base64(const char *secretid, Error **errp);
 
 #endif /* QCRYPTO_SECRET_COMMON_H */