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From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: Gerd Hoffmann <kraxel@redhat.com>
Subject: [Qemu-devel] [PATCH] Revert "xhci: Fix number of streams allocated when using streams"
Date: Fri, 29 Aug 2014 12:45:06 +0200	[thread overview]
Message-ID: <1409309106-21147-1-git-send-email-kraxel@redhat.com> (raw)

This reverts commit d063c3112c4cd23a479ee18720c2bd119da2d315.

"2 << x" is the same as "2 ^ (x + 1)", so the old code is correct.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-xhci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 2c5c6f3..c63cadc 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -1151,7 +1151,7 @@ static void xhci_reset_streams(XHCIEPContext *epctx)
 static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base)
 {
     assert(epctx->pstreams == NULL);
-    epctx->nr_pstreams = 2 << (epctx->max_pstreams + 1);
+    epctx->nr_pstreams = 2 << epctx->max_pstreams;
     epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base);
 }
 
-- 
1.8.3.1

             reply	other threads:[~2014-08-29 10:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-29 10:45 Gerd Hoffmann [this message]
2014-08-29 12:45 ` [Qemu-devel] [PATCH] Revert "xhci: Fix number of streams allocated when using streams" Hans de Goede

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