[Qemu-devel] [PATCH 15/15] qtest/ahci: Don't use a magic constant for buffer size

[John Snow <jsnow@redhat.com>]

Fix to correct the use of "512" as a magic constant and define
it as the buffer size for the operation instead.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/ahci-test.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index e3091b9..9d16d0c 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1651,6 +1651,7 @@ static void ahci_test_identify(AHCIState *ahci)
     int rc;
     uint8_t cx;
     uint64_t table_ptr;
+    const size_t buffsize = 512;
 
     g_assert(ahci != NULL);
 
@@ -1677,11 +1678,11 @@ static void ahci_test_identify(AHCIState *ahci)
     port_clear(ahci, i);
 
     /* Create a data buffer where we will dump the IDENTIFY data to. */
-    data_ptr = guest_alloc(guest_malloc, 512);
+    data_ptr = guest_alloc(guest_malloc, buffsize);
     g_assert(data_ptr);
 
     /* Construct the Command Table (FIS and PRDT) */
-    table_ptr = build_cmd_table(ahci, i, 512, CMD_IDENTIFY, data_ptr);
+    table_ptr = build_cmd_table(ahci, i, buffsize, CMD_IDENTIFY, data_ptr);
 
     /* Pick a command slot and link it to the command table we've built */
     cx = link_cmd_slot(ahci, i, table_ptr, CMDH_READ);
@@ -1698,13 +1699,13 @@ static void ahci_test_identify(AHCIState *ahci)
     port_check_interrupts(ahci, i, AHCI_PX_IS_DHRS | AHCI_PX_IS_PSS);
     port_check_nonbusy(ahci, i, cx);
     /* Investigate the CMD, assert that we read 512 bytes */
-    port_check_cmd_sanity(ahci, i, cx, 512);
+    port_check_cmd_sanity(ahci, i, cx, buffsize);
     /* Investigate FIS responses */
     port_check_d2h_sanity(ahci, i, cx);
-    port_check_pio_sanity(ahci, i, cx, 512);
+    port_check_pio_sanity(ahci, i, cx, buffsize);
 
     /* Last, but not least: Investigate the IDENTIFY response data. */
-    memread(data_ptr, &buff, 512);
+    memread(data_ptr, &buff, buffsize);
 
     /* Check serial number/version in the buffer */
     /* NB: IDENTIFY strings are packed in 16bit little endian chunks.
-- 
1.9.3