[S390] Fix a lot of sparse warnings.

Most noteable part of this commit is the new local header file entry.h
which contains all the function declarations of functions that get only
called from asm code or are arch internal. That way we can avoid extern
declarations in C files.
This is more or less the same that was done for sparc64.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h
index 123b557c3ff4..0818ecd30ca6 100644
--- a/include/asm-s390/cio.h
+++ b/include/asm-s390/cio.h
@@ -397,6 +397,10 @@ struct cio_iplinfo {
 
 extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo);
 
+/* Function from drivers/s390/cio/chsc.c */
+int chsc_sstpc(void *page, unsigned int op, u16 ctrl);
+int chsc_sstpi(void *page, void *result, size_t size);
+
 #endif
 
 #endif