* [PATCH] x86/HVM: remove dead code
@ 2012-12-06 12:55 Jan Beulich
2012-12-06 13:04 ` Keir Fraser
0 siblings, 1 reply; 4+ messages in thread
From: Jan Beulich @ 2012-12-06 12:55 UTC (permalink / raw)
To: xen-devel
[-- Attachment #1: Type: text/plain, Size: 748 bytes --]
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -2460,9 +2460,7 @@ static enum hvm_copy_result __hvm_copy(
return HVMCOPY_unhandleable;
}
if ( !page )
- {
return HVMCOPY_bad_gfn_to_mfn;
- }
p = (char *)__map_domain_page(page) + (addr & ~PAGE_MASK);
@@ -2560,11 +2558,7 @@ static enum hvm_copy_result __hvm_clear(
return HVMCOPY_unhandleable;
}
if ( !page )
- {
- if ( page )
- put_page(page);
return HVMCOPY_bad_gfn_to_mfn;
- }
p = (char *)__map_domain_page(page) + (addr & ~PAGE_MASK);
[-- Attachment #2: x86-hvm-dead-code.patch --]
[-- Type: text/plain, Size: 771 bytes --]
x86/HVM: remove dead code
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -2460,9 +2460,7 @@ static enum hvm_copy_result __hvm_copy(
return HVMCOPY_unhandleable;
}
if ( !page )
- {
return HVMCOPY_bad_gfn_to_mfn;
- }
p = (char *)__map_domain_page(page) + (addr & ~PAGE_MASK);
@@ -2560,11 +2558,7 @@ static enum hvm_copy_result __hvm_clear(
return HVMCOPY_unhandleable;
}
if ( !page )
- {
- if ( page )
- put_page(page);
return HVMCOPY_bad_gfn_to_mfn;
- }
p = (char *)__map_domain_page(page) + (addr & ~PAGE_MASK);
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
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http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] x86/HVM: remove dead code
2012-12-06 12:55 [PATCH] x86/HVM: remove dead code Jan Beulich
@ 2012-12-06 13:04 ` Keir Fraser
0 siblings, 0 replies; 4+ messages in thread
From: Keir Fraser @ 2012-12-06 13:04 UTC (permalink / raw)
To: Jan Beulich, xen-devel
On 06/12/2012 12:55, "Jan Beulich" <JBeulich@suse.com> wrote:
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -2460,9 +2460,7 @@ static enum hvm_copy_result __hvm_copy(
> return HVMCOPY_unhandleable;
> }
> if ( !page )
> - {
> return HVMCOPY_bad_gfn_to_mfn;
> - }
>
> p = (char *)__map_domain_page(page) + (addr & ~PAGE_MASK);
>
> @@ -2560,11 +2558,7 @@ static enum hvm_copy_result __hvm_clear(
> return HVMCOPY_unhandleable;
> }
> if ( !page )
> - {
> - if ( page )
> - put_page(page);
> return HVMCOPY_bad_gfn_to_mfn;
> - }
>
> p = (char *)__map_domain_page(page) + (addr & ~PAGE_MASK);
>
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] x86/HVM: remove dead code
@ 2016-04-04 6:28 Jan Beulich
2016-04-05 9:34 ` Andrew Cooper
0 siblings, 1 reply; 4+ messages in thread
From: Jan Beulich @ 2016-04-04 6:28 UTC (permalink / raw)
To: xen-devel; +Cc: Paul Durrant
[-- Attachment #1: Type: text/plain, Size: 967 bytes --]
With commit 96ae556569 ("x86/HVM: fix forwarding of internally cached
requests") rc doesn't change anymore in the respective preceding
switch() statements.
Coverity ID: 1358080
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/arch/x86/hvm/intercept.c
+++ b/xen/arch/x86/hvm/intercept.c
@@ -151,8 +151,6 @@ int hvm_process_io_intercept(const struc
domain_crash(current->domain);
return X86EMUL_UNHANDLEABLE;
}
- if ( rc != X86EMUL_OKAY )
- break;
}
else
p->data = data;
@@ -181,8 +181,6 @@ int hvm_process_io_intercept(const struc
domain_crash(current->domain);
return X86EMUL_UNHANDLEABLE;
}
- if ( rc != X86EMUL_OKAY )
- break;
}
else
data = p->data;
[-- Attachment #2: x86-HVM-intercept-dead-code.patch --]
[-- Type: text/plain, Size: 990 bytes --]
x86/HVM: remove dead code
With commit 96ae556569 ("x86/HVM: fix forwarding of internally cached
requests") rc doesn't change anymore in the respective preceding
switch() statements.
Coverity ID: 1358080
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/arch/x86/hvm/intercept.c
+++ b/xen/arch/x86/hvm/intercept.c
@@ -151,8 +151,6 @@ int hvm_process_io_intercept(const struc
domain_crash(current->domain);
return X86EMUL_UNHANDLEABLE;
}
- if ( rc != X86EMUL_OKAY )
- break;
}
else
p->data = data;
@@ -181,8 +181,6 @@ int hvm_process_io_intercept(const struc
domain_crash(current->domain);
return X86EMUL_UNHANDLEABLE;
}
- if ( rc != X86EMUL_OKAY )
- break;
}
else
data = p->data;
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] x86/HVM: remove dead code
2016-04-04 6:28 Jan Beulich
@ 2016-04-05 9:34 ` Andrew Cooper
0 siblings, 0 replies; 4+ messages in thread
From: Andrew Cooper @ 2016-04-05 9:34 UTC (permalink / raw)
To: Jan Beulich, xen-devel; +Cc: Paul Durrant
On 04/04/16 07:28, Jan Beulich wrote:
> With commit 96ae556569 ("x86/HVM: fix forwarding of internally cached
> requests") rc doesn't change anymore in the respective preceding
> switch() statements.
>
> Coverity ID: 1358080
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
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2012-12-06 12:55 [PATCH] x86/HVM: remove dead code Jan Beulich
2012-12-06 13:04 ` Keir Fraser
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2016-04-04 6:28 Jan Beulich
2016-04-05 9:34 ` Andrew Cooper
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