From patchwork Tue Aug 14 10:55:47 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: xbzrle: fix compilation on ppc32 Date: Tue, 14 Aug 2012 00:55:47 -0000 From: Alexander Graf X-Patchwork-Id: 177217 Message-Id: <1344941747-30158-1-git-send-email-agraf@suse.de> To: qemu-devel qemu-devel Cc: Orit Wasserman When compiling the xbzrle code on my ppc32 user space, I hit the following gcc compiler warning (treated as an error): cc1: warnings being treated as errors savevm.c: In function ‘xbzrle_encode_buffer’: savevm.c:2476: error: overflow in implicit constant conversion Fix this by making the cast explicit, rather than implicit. Signed-off-by: Alexander Graf Reviewed-by: Eric Blake --- savevm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/savevm.c b/savevm.c index 0ea10c9..9ab4d83 100644 --- a/savevm.c +++ b/savevm.c @@ -2473,7 +2473,7 @@ int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen, /* word at a time for speed, use of 32-bit long okay */ if (!res) { /* truncation to 32-bit long okay */ - long mask = 0x0101010101010101ULL; + long mask = (long)0x0101010101010101ULL; while (i < slen) { xor = *(long *)(old_buf + i) ^ *(long *)(new_buf + i); if ((xor - mask) & ~xor & (mask << 7)) {