[xen staging] bunzip: replace INIT

[patchbot@xxxxxxx]

commit 3df14c917230df45b30009b5980955f62925a50d
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Fri Apr 16 14:37:36 2021 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Apr 16 14:37:36 2021 +0200

    bunzip: replace INIT
    
    While tools/libs/guest/xg_private.h has its own (non-conflicting for our
    purposes) __init, which hence needs to be #undef-ed, there's no other
    need for this abstraction.
    
    Requested-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/common/bunzip2.c    | 22 +++++++++++-----------
 xen/common/decompress.h |  4 ++++
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/xen/common/bunzip2.c b/xen/common/bunzip2.c
index 6aeac79f1a..2087cfbbed 100644
--- a/xen/common/bunzip2.c
+++ b/xen/common/bunzip2.c
@@ -104,7 +104,7 @@ struct bunzip_data {
 
 /* Return the next nnn bits of input.  All reads from the compressed input
    are done through this function.  All reads are big endian */
-static unsigned int INIT get_bits(struct bunzip_data *bd, char bits_wanted)
+static unsigned int __init get_bits(struct bunzip_data *bd, char bits_wanted)
 {
        unsigned int bits = 0;
 
@@ -144,7 +144,7 @@ static unsigned int INIT get_bits(struct bunzip_data *bd, 
char bits_wanted)
 
 /* Unpacks the next block and sets up for the inverse burrows-wheeler step. */
 
-static int INIT get_next_block(struct bunzip_data *bd)
+static int __init get_next_block(struct bunzip_data *bd)
 {
        struct group_data *hufGroup = NULL;
        int *base = NULL;
@@ -509,7 +509,7 @@ got_huff_bits:
    are ignored, data is written to out_fd and return is RETVAL_OK or error.
 */
 
-static int INIT read_bunzip(struct bunzip_data *bd, unsigned char *outbuf, int 
len)
+static int __init read_bunzip(struct bunzip_data *bd, unsigned char *outbuf, 
int len)
 {
        const unsigned int *dbuf;
        int pos, xcurrent, previous, gotcount;
@@ -607,7 +607,7 @@ decode_next_byte:
        goto decode_next_byte;
 }
 
-static int INIT nofill(void *buf, unsigned int len)
+static int __init nofill(void *buf, unsigned int len)
 {
        return -1;
 }
@@ -615,8 +615,8 @@ static int INIT nofill(void *buf, unsigned int len)
 /* Allocate the structure, read file header.  If in_fd ==-1, inbuf must contain
    a complete bunzip file (len bytes long).  If in_fd!=-1, inbuf and len are
    ignored, and data is read from file handle into temporary buffer. */
-static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
-                            int (*fill)(void*, unsigned int))
+static int __init start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
+                              int (*fill)(void*, unsigned int))
 {
        struct bunzip_data *bd;
        unsigned int i, j, c;
@@ -665,11 +665,11 @@ static int INIT start_bunzip(struct bunzip_data **bdp, 
void *inbuf, int len,
 
 /* Example usage: decompress src_fd to dst_fd.  (Stops at end of bzip2 data,
    not end of file.) */
-int INIT bunzip2(unsigned char *buf, unsigned int len,
-                int(*fill)(void*, unsigned int),
-                int(*flush)(void*, unsigned int),
-                unsigned char *outbuf, unsigned int *pos,
-                void(*error)(const char *x))
+int __init bunzip2(unsigned char *buf, unsigned int len,
+                  int(*fill)(void*, unsigned int),
+                  int(*flush)(void*, unsigned int),
+                  unsigned char *outbuf, unsigned int *pos,
+                  void(*error)(const char *x))
 {
        struct bunzip_data *bd;
        int i = -1;
diff --git a/xen/common/decompress.h b/xen/common/decompress.h
index d740a80eeb..9491ba581d 100644
--- a/xen/common/decompress.h
+++ b/xen/common/decompress.h
@@ -23,6 +23,10 @@
 #define INIT
 #define INITDATA
 
+#undef __init /* tools/libs/guest/xg_private.h has its own one */
+#define __init
+#define __initdata
+
 #define large_malloc malloc
 #define large_free free
 
--
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