unlzma: fix build of stubdom unsafe decompressors

c/s b683d68c386 changed the packing attribute on struct lzma_header.  However,
this is 3rd library code used by stubdomains.

Revert the change to lzma_header alone to avoid needless divergence from its
source.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

diff --git a/xen/common/unlzma.c b/xen/common/unlzma.c
index 103d2df596aeb9178131f0f2a8a09bed2ad744a7..a7da55b0237acc4c8c6fca77fcf96feaa7f486fc 100644 (file)
--- a/xen/common/unlzma.c
+++ b/xen/common/unlzma.c
@@ -214,11 +214,11 @@ rc_bit_tree_decode(struct rc *rc, uint16_t *p, int num_levels, int *symbol)
  */
 
 
-struct __packed lzma_header {
+struct lzma_header {
        uint8_t pos;
        uint32_t dict_size;
        uint64_t dst_size;
-};
+} __attribute__((packed)) ;
 
 
 #define LZMA_BASE_SIZE 1846