From: "Jan Beulich" <JBeulich@novell.com>
To: Olaf Hering <olaf@aepfle.de>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH 27 of 45] gcc-4.6 compile fix: xen/arch/x86/acpi/cpu_idle.c
Date: Fri, 20 May 2011 08:52:58 +0100 [thread overview]
Message-ID: <4DD639FA0200007800042612@vpn.id2.novell.com> (raw)
In-Reply-To: <90160f32dbae6535e54e.1305831946@probook.site>
>>> On 19.05.11 at 21:05, Olaf Hering <olaf@aepfle.de> wrote:
> # HG changeset patch
> # User Olaf Hering <olaf@aepfle.de>
> # Date 1305824412 -7200
> # Node ID 90160f32dbae6535e54e72375b004c0113ed1f62
> # Parent c8f5b4743f9a91dc1e879d35f8f2d4b981f0963d
> gcc-4.6 compile fix: xen/arch/x86/acpi/cpu_idle.c
>
> cpu_idle.c: In function 'acpi_idle_do_entry':
> cpu_idle.c:276:9: error: variable 'unused' set but not used
> [-Werror=unused-but-set-variable]
>
> Signed-off-by: Olaf Hering <olaf@aepfle.de>
>
> diff -r c8f5b4743f9a -r 90160f32dbae xen/arch/x86/acpi/cpu_idle.c
> --- a/xen/arch/x86/acpi/cpu_idle.c Thu May 19 19:00:11 2011 +0200
> +++ b/xen/arch/x86/acpi/cpu_idle.c Thu May 19 19:00:12 2011 +0200
> @@ -273,7 +273,7 @@ static void acpi_processor_ffh_cstate_en
>
> static void acpi_idle_do_entry(struct acpi_processor_cx *cx)
> {
> - int unused;
> + int unused __attribute__((unused));
Better remove the variable and its assignment - inl(), just as the
inb() immediately before, can't be removed by the compiler even
if its result is unused (they're volatile asm()-s).
Jan
>
> switch ( cx->entry_method )
> {
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
next prev parent reply other threads:[~2011-05-20 7:52 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-19 19:05 [PATCH 00 of 45] gcc 4.6 compile fixes for xen-unstable Olaf Hering
2011-05-19 19:05 ` [PATCH 01 of 45] gcc-4.6 compile fix: tools/libxc/xc_tmem.c Olaf Hering
2011-05-19 19:05 ` [PATCH 02 of 45] gcc-4.6 compile fix: tools/libxc/xc_domain_restore.c Olaf Hering
2011-05-19 19:05 ` [PATCH 03 of 45] gcc-4.6 compile fix: tools/xenstore/xenstored_core.c Olaf Hering
2011-05-20 8:21 ` Keir Fraser
2011-05-20 8:30 ` Ian Campbell
2011-05-20 8:41 ` Keir Fraser
2011-05-20 14:38 ` Olaf Hering
2011-05-20 14:58 ` Keir Fraser
2011-05-20 16:11 ` Olaf Hering
2011-05-21 6:50 ` Keir Fraser
2011-05-20 8:35 ` Olaf Hering
2011-05-19 19:05 ` [PATCH 04 of 45] gcc-4.6 compile fix: tools/misc/gtraceview.c Olaf Hering
2011-05-19 19:05 ` [PATCH 05 of 45] gcc-4.6 compile fix: tools/xcutils/xc_restore.c Olaf Hering
2011-05-19 19:05 ` [PATCH 06 of 45] gcc-4.6 compile fix: tools/firmware/rombios/32bit/tcgbios/tcgbios.c Olaf Hering
2011-05-19 19:05 ` [PATCH 07 of 45] gcc-4.6 compile fix: tools/console/client/main.c Olaf Hering
2011-05-19 19:05 ` [PATCH 08 of 45] gcc-4.6 compile fix: tools/xenstat/xentop/xentop.c Olaf Hering
2011-05-19 19:05 ` [PATCH 09 of 45] gcc-4.6 compile fix: tools/libxl/xl_cmdimpl.c Olaf Hering
2011-05-19 19:05 ` [PATCH 10 of 45] gcc-4.6 compile fix: tools/libxl/libxlu_cfg.c Olaf Hering
2011-05-19 19:05 ` [PATCH 11 of 45] gcc-4.6 compile fix: tools/libxl/libxl.c Olaf Hering
2011-05-19 19:05 ` [PATCH 12 of 45] gcc-4.6 compile fix: tools/libxl/libxl_pci.c Olaf Hering
2011-05-19 19:05 ` [PATCH 13 of 45] gcc-4.6 compile fix: tools/libxl/libxl_dom.c Olaf Hering
2011-05-19 19:05 ` [PATCH 14 of 45] gcc-4.6 compile fix: tools/libxl/libxl_utils.c Olaf Hering
2011-05-19 19:05 ` [PATCH 15 of 45] gcc-4.6 compile fix: tools/debugger/gdbsx/gx/gx_comm.c Olaf Hering
2011-05-19 19:05 ` [PATCH 16 of 45] gcc-4.6 compile fix: tools/python/xen/lowlevel/checkpoint/libcheckpoint.c Olaf Hering
2011-05-19 19:05 ` [PATCH 17 of 45] gcc-4.6 compile fix: tools/python/xen/lowlevel/netlink/libnetlink.c Olaf Hering
2011-05-19 19:05 ` [PATCH 18 of 45] gcc-4.6 compile fix: xen/common/cpupool.c Olaf Hering
2011-05-20 7:43 ` Jan Beulich
2011-05-19 19:05 ` [PATCH 19 of 45] gcc-4.6 compile fix: xen/common/grant_table.c Olaf Hering
2011-05-19 19:05 ` [PATCH 20 of 45] gcc-4.6 compile fix: xen/common/kexec.c Olaf Hering
2011-05-19 19:05 ` [PATCH 21 of 45] gcc-4.6 compile fix: xen/common/sched_credit2.c Olaf Hering
2011-05-19 19:05 ` [PATCH 22 of 45] gcc-4.6 compile fix: xen/common/unlzo.c Olaf Hering
2011-05-19 19:05 ` [PATCH 23 of 45] gcc-4.6 compile fix: xen/drivers/passthrough/vtd/intremap.c Olaf Hering
2011-05-19 19:05 ` [PATCH 24 of 45] gcc-4.6 compile fix: xen/arch/x86/msi.c Olaf Hering
2011-05-19 19:05 ` [PATCH 25 of 45] gcc-4.6 compile fix: xen/arch/x86/microcode_amd.c Olaf Hering
2011-05-19 19:05 ` [PATCH 26 of 45] gcc-4.6 compile fix: xen/arch/x86/time.c Olaf Hering
2011-05-19 19:05 ` [PATCH 27 of 45] gcc-4.6 compile fix: xen/arch/x86/acpi/cpu_idle.c Olaf Hering
2011-05-20 7:52 ` Jan Beulich [this message]
2011-05-19 19:05 ` [PATCH 28 of 45] gcc-4.6 compile fix: xen/arch/x86/cpu/amd.c Olaf Hering
2011-05-19 19:05 ` [PATCH 29 of 45] gcc-4.6 compile fix: xen/arch/x86/cpu/intel.c Olaf Hering
2011-05-20 7:55 ` Jan Beulich
2011-05-20 8:38 ` Keir Fraser
2011-05-19 19:05 ` [PATCH 30 of 45] gcc-4.6 compile fix: xen/arch/x86/cpu/intel_cacheinfo.c Olaf Hering
2011-05-19 19:05 ` [PATCH 31 of 45] gcc-4.6 compile fix: xen/arch/x86/cpu/mcheck/mce.c Olaf Hering
2011-05-19 19:05 ` [PATCH 32 of 45] gcc-4.6 compile fix: xen/arch/x86/hvm/emulate.c Olaf Hering
2011-05-19 19:05 ` [PATCH 33 of 45] gcc-4.6 compile fix: xen/arch/x86/hvm/hvm.c Olaf Hering
2011-05-19 19:05 ` [PATCH 34 of 45] gcc-4.6 compile fix: xen/arch/x86/hvm/viridian.c Olaf Hering
2011-05-19 19:05 ` [PATCH 35 of 45] gcc-4.6 compile fix: xen/arch/x86/mm/p2m-pod.c Olaf Hering
2011-05-19 19:05 ` [PATCH 36 of 45] gcc-4.6 compile fix: xen/arch/x86/mm/mem_sharing.c Olaf Hering
2011-05-19 19:05 ` [PATCH 37 of 45] gcc-4.6 compile fix: xen/arch/x86/x86_64/mm.c Olaf Hering
2011-05-19 19:05 ` [PATCH 38 of 45] gcc-4.6 compile fix: xen/arch/x86/mm.c Olaf Hering
2011-05-19 19:05 ` [PATCH 39 of 45] gcc-4.6 compile fix: xen/arch/x86/cpu/mcheck/vmce.c Olaf Hering
2011-05-19 19:05 ` [PATCH 40 of 45] gcc-4.6 compile fix: xen/common/tmem.c Olaf Hering
2011-05-19 19:06 ` [PATCH 41 of 45] gcc-4.6 compile fix: xen/common/tmem_xen.c Olaf Hering
2011-05-19 19:06 ` [PATCH 42 of 45] gcc-4.6 compile fix: xen/arch/x86/mm/p2m.c Olaf Hering
2011-05-19 19:06 ` [PATCH 43 of 45] gcc-4.6 compile fix: xen/arch/x86/mm/shadow/multi.c Olaf Hering
2011-05-19 19:06 ` [PATCH 44 of 45] gcc-4.6 compile fix: xen/arch/x86/traps.c Olaf Hering
2011-05-20 8:12 ` Jan Beulich
2011-05-19 19:06 ` [PATCH 45 of 45] gcc-4.6 compile fix: xen/arch/x86/domain_build.c Olaf Hering
2011-05-20 7:38 ` [PATCH 00 of 45] gcc 4.6 compile fixes for xen-unstable Jan Beulich
2011-05-20 7:44 ` Olaf Hering
2011-05-20 8:28 ` Ian Campbell
2011-05-20 8:39 ` Keir Fraser
2011-05-20 17:23 ` Ian Jackson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4DD639FA0200007800042612@vpn.id2.novell.com \
--to=jbeulich@novell.com \
--cc=olaf@aepfle.de \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).