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From: P J P <ppandit@redhat.com>
To: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: Fam Zheng <fam@euphon.net>,
	Prasad J Pandit <pjp@fedoraproject.org>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Bugs SysSec <bugs-syssec@rub.de>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Stefano Garzarella <sgarzare@redhat.com>
Subject: [Qemu-devel] [PATCH v3 2/2] scsi: lsi: use macro LSI_MAX_INSN instead of a magic number
Date: Fri,  9 Aug 2019 12:08:35 +0530	[thread overview]
Message-ID: <20190809063835.6717-3-ppandit@redhat.com> (raw)
In-Reply-To: <20190809063835.6717-1-ppandit@redhat.com>

From: Prasad J Pandit <pjp@fedoraproject.org>

Use macro 'LSI_MAX_INSN' instead of a magic number 10000.

Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
---
 hw/scsi/lsi53c895a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index e703ef4c9d..f6786607f8 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -1578,7 +1578,7 @@ again:
             }
         }
     }
-    if (insn_processed > 10000 && s->waiting == LSI_NOWAIT) {
+    if (insn_processed > LSI_MAX_INSN && s->waiting == LSI_NOWAIT) {
         /* Some windows drivers make the device spin waiting for a memory
            location to change.  If we have been executed a lot of code then
            assume this is the case and force an unexpected device disconnect.
-- 
2.21.0



      parent reply	other threads:[~2019-08-09  6:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09  6:38 [Qemu-devel] [PATCH v3 0/2] scsi: lsi: break infinite loop after 10k instructions P J P
2019-08-09  6:38 ` [Qemu-devel] [PATCH v3 1/2] scsi: lsi: exit infinite loop while executing script (CVE-2019-12068) P J P
2019-08-13 10:05   ` P J P
2019-08-13 10:31     ` Philippe Mathieu-Daudé
2019-08-13 14:33       ` Paolo Bonzini
2019-08-14 10:25         ` P J P
2019-08-14 10:38           ` Paolo Bonzini
2019-08-14 12:08             ` P J P
2019-08-09  6:38 ` P J P [this message]

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