[PATCH 1/9] pkcs7: Forward declare struct key in pkcs7.h

[Vivek Goyal]

Do a forward declaration of "struct key" in pkcs.h as one of the functions
takes pointer to struct key as argument.

Otherwise when I include this header file in some other .c file where
key.h is not included, I get following warning later in the series.

In file included from arch/x86/kernel/mscode_parser.c:17:0:
include/crypto/pkcs7.h:30:5: warning: âstruct keyâ declared inside parameter list [enabled by default]
     bool *_trusted);
     ^
include/crypto/pkcs7.h:30:5: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]

Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
---
 include/crypto/pkcs7.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/crypto/pkcs7.h b/include/crypto/pkcs7.h
index 167f914..4c227e3 100644
--- a/include/crypto/pkcs7.h
+++ b/include/crypto/pkcs7.h
@@ -10,6 +10,7 @@
  */
 
 struct pkcs7_message;
+struct key;
 
 /*
  * pkcs7_parser.c
-- 
1.9.0

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