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migration: fix warning for source_return_path_thread

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max_len is not necessary, while it brings a warning during compilation
when specify "-Wstack-usage=1000000". Replacing using sizeof().

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1457503932-31763-1-git-send-email-peterx@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Peter Xu 2016-03-09 14:12:12 +08:00 committed by Amit Shah
parent a648c13738
commit 568b01caf3
1 changed files with 2 additions and 3 deletions
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5
migration/migration.c
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@ -1269,8 +1269,7 @@ static void *source_return_path_thread(void *opaque)
MigrationState *ms = opaque;
QEMUFile *rp = ms->rp_state.from_dst_file;
uint16_t header_len, header_type;
const int max_len = 512;
uint8_t buf[max_len];
uint8_t buf[512];
uint32_t tmp32, sibling_error;
ram_addr_t start = 0; /* =0 to silence warning */
size_t len = 0, expected_len;
@ -1293,7 +1292,7 @@ static void *source_return_path_thread(void *opaque)
if ((rp_cmd_args[header_type].len != -1 &&
header_len != rp_cmd_args[header_type].len) ||
header_len > max_len) {
header_len > sizeof(buf)) {
error_report("RP: Received '%s' message (0x%04x) with"
"incorrect length %d expecting %zu",
rp_cmd_args[header_type].name, header_type, header_len,