[Qemu-devel] [PULL 49/53] ipmi: remove the need of an ending record in the SDR table

From: "Michael S. Tsirkin" <mst@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	"Corey Minyard" <cminyard@mvista.com>,
	=?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@fr.ibm.com>,
	"Marcel Apfelbaum" <marcel@redhat.com>,
	"Greg Kurz" <gkurz@linux.vnet.ibm.com>
Subject: [Qemu-devel] [PULL 49/53] ipmi: remove the need of an ending record in the SDR table
Date: Fri, 11 Mar 2016 17:10:27 +0200	[thread overview]
Message-ID: <1457708548-14093-50-git-send-email-mst@redhat.com> (raw)
In-Reply-To: <1457708548-14093-1-git-send-email-mst@redhat.com>

From: Cédric Le Goater <clg@fr.ibm.com>

Currently, the code initializing the sdr table relies on an ending
record with a recid of 0xffff. This patch changes the loop to use the
sdr size as a breaking condition.

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/ipmi/ipmi_bmc_sim.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/hw/ipmi/ipmi_bmc_sim.c b/hw/ipmi/ipmi_bmc_sim.c
index 0d4d748..9176f8a 100644
--- a/hw/ipmi/ipmi_bmc_sim.c
+++ b/hw/ipmi/ipmi_bmc_sim.c
@@ -1690,34 +1690,27 @@ static const uint8_t init_sdrs[] = {
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8,
     'W',  'a',  't',  'c',  'h',  'd',  'o',  'g',
-    /* End */
-    0xff, 0xff, 0x00, 0x00, 0x00
 };
 
 static void ipmi_sdr_init(IPMIBmcSim *ibs)
 {
     unsigned int i;
-    unsigned int recid;
+    int len;
 
-    for (i = 0;;) {
+    for (i = 0; i < sizeof(init_sdrs); i += len) {
         struct ipmi_sdr_header *sdrh;
-        int len;
+
         if ((i + IPMI_SDR_HEADER_SIZE) > sizeof(init_sdrs)) {
             error_report("Problem with recid 0x%4.4x", i);
             return;
         }
         sdrh = (struct ipmi_sdr_header *) &init_sdrs[i];
         len = ipmi_sdr_length(sdrh);
-        recid = ipmi_sdr_recid(sdrh);
-        if (recid == 0xffff) {
-            break;
-        }
         if ((i + len) > sizeof(init_sdrs)) {
             error_report("Problem with recid 0x%4.4x", i);
             return;
         }
         sdr_add_entry(ibs, sdrh, len, NULL);
-        i += len;
     }
 }
 
-- 
MST
