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From 2badec2441d95d693d7125d87fa8867f24f1ea9d Mon Sep 17 00:00:00 2001
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From: Markus Armbruster <armbru@redhat.com>
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Date: Sat, 2 Nov 2013 15:05:06 +0100
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Subject: [PATCH 49/81] rhel: Drop "isa-vga" device
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RH-Author: Markus Armbruster <armbru@redhat.com>
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Message-id: <1383404707-6015-2-git-send-email-armbru@redhat.com>
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Patchwork-id: 55272
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O-Subject: [PATCH 7.0 qemu-kvm 1/2] rhel: Drop "isa-vga" device
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Bugzilla: 1001088
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
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RH-Acked-by: Alex Williamson <alex.williamson@redhat.com>
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From: Markus Armbruster <armbru@redhat.com>
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We can drop a device from the build only when it isn't referenced from
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code we build. References come in two forms: extern symbols, and qdev
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driver names.
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Unresolved extern symbols pose no real danger, because they fail
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safely at link time. The dropped code doesn't define any extern
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symbols anyway.
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Unresolved driver names get detected only at runtime, so we better be
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extra careful. Occurences of the driver name outside the code dropped
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by this patch:
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* default_list[] in vl.c: Used only to disable default VGA with
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-device isa-vga. Safe.
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* vga_available() in vl.c: Tests whether the device is compiled in.
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No change, because device "VGA" is still compiled in, therfore safe.
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* isa_vga_init() in hw/isa/isa-bus.c: Its only potential caller
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pc_vga_init() never calls in RHEL, because it never gets a null
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pci_bus argument. Safe.
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
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default-configs/x86_64-softmmu.mak | 1 -
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1 file changed, 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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default-configs/x86_64-softmmu.mak | 1 -
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1 files changed, 0 insertions(+), 1 deletions(-)
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diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
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index 70d8bd9..e7c48ec 100644
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+++ b/default-configs/x86_64-softmmu.mak
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@@ -6,7 +6,6 @@ include usb.mak
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CONFIG_VGA=y
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CONFIG_QXL=$(CONFIG_SPICE)
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CONFIG_VGA_PCI=y
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-CONFIG_VGA_ISA=y
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CONFIG_VGA_CIRRUS=y
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CONFIG_VMMOUSE=y
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CONFIG_SERIAL=y
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--
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1.7.1
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