From: Jean Guyader <jean.guyader@citrix.com>
To: xen-devel@lists.xen.org
Cc: Jean Guyader <jean.guyader@citrix.com>
Subject: [PATCH 4/5] xen: Enforce casting for guest_handle_cast
Date: Thu, 31 May 2012 15:52:34 +0100 [thread overview]
Message-ID: <1338475955-26472-5-git-send-email-jean.guyader@citrix.com> (raw)
In-Reply-To: <1338475955-26472-1-git-send-email-jean.guyader@citrix.com>
[-- Attachment #1: Type: text/plain, Size: 298 bytes --]
This is useful if you want to cast a guest handle to char * to do
pointer aritmetics afterwards with functions like guest_handle_add_offset.
Signed-off-by: Jean Guyader <jean.guyader@citrix.com>
---
xen/include/asm-x86/guest_access.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0004-xen-Enforce-casting-for-guest_handle_cast.patch --]
[-- Type: text/x-patch; name="0004-xen-Enforce-casting-for-guest_handle_cast.patch", Size: 487 bytes --]
diff --git a/xen/include/asm-x86/guest_access.h b/xen/include/asm-x86/guest_access.h
index 2b429c2..7e95da3 100644
--- a/xen/include/asm-x86/guest_access.h
+++ b/xen/include/asm-x86/guest_access.h
@@ -47,7 +47,7 @@
/* Cast a guest handle to the specified type of handle. */
#define guest_handle_cast(hnd, type) ({ \
- type *_x = (hnd).p; \
+ type *_x = (type *)(hnd).p; \
(XEN_GUEST_HANDLE(type)) { _x }; \
})
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
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next prev parent reply other threads:[~2012-05-31 14:52 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-31 14:52 [RFC][PATCH 0/5] Add V4V to Xen Jean Guyader
2012-05-31 14:52 ` [PATCH 1/5] xen: add ssize_t to types.h Jean Guyader
2012-05-31 14:52 ` [PATCH 2/5] xen: Add headers to include/Makefile Jean Guyader
2012-05-31 14:52 ` [PATCH 3/5] v4v: Introduce VIRQ_V4V Jean Guyader
2012-05-31 14:52 ` Jean Guyader [this message]
2012-05-31 14:52 ` [PATCH 5/5] xen: Add V4V implementation Jean Guyader
-- strict thread matches above, loose matches on Subject: below --
2012-05-31 15:07 [RFC][PATCH 0/5] Add V4V to Xen Jean Guyader
2012-05-31 15:07 ` [PATCH 4/5] xen: Enforce casting for guest_handle_cast Jean Guyader
2012-05-31 15:47 ` Jan Beulich
2012-06-14 14:08 ` Jean Guyader
2012-06-14 14:23 ` Jan Beulich
2012-06-14 14:26 ` Tim Deegan
2012-06-14 14:27 ` Tim Deegan
2012-06-14 14:40 ` Jean Guyader
2012-06-14 15:39 ` Jean Guyader
2012-06-14 15:50 ` Tim Deegan
2012-06-14 16:00 ` Jan Beulich
2012-06-14 21:19 ` Jean Guyader
2012-06-18 11:36 ` Jan Beulich
2012-06-18 12:50 ` Jean Guyader
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