From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Emese Revfy <re.emese@gmail.com>
Cc: tony.luck@intel.com, geoffrey.levand@am.sony.com,
davem@davemloft.net, tglx@linutronix.de, joerg.roedel@amd.com,
muli@il.ibm.com, jdmason@kudzu.us, jbarnes@virtuousgeek.org,
dwmw2@infradead.org, torvalds@linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 05/31] Constify struct dma_map_ops for 2.6.32 v1
Date: Sat, 5 Dec 2009 12:20:15 +1100 [thread overview]
Message-ID: <20091205122015.c898e234.sfr@canb.auug.org.au> (raw)
In-Reply-To: <20091205115936.d3a7a6ec.sfr@canb.auug.org.au>
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Hi Emese,
On Sat, 5 Dec 2009 11:59:36 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> On Fri, 04 Dec 2009 23:14:08 +0100 Emese Revfy <re.emese@gmail.com> wrote:
> >
> > --- a/arch/powerpc/kernel/vio.c
> > +++ b/arch/powerpc/kernel/vio.c
> > @@ -601,6 +601,7 @@ static void vio_dma_iommu_unmap_sg(struct device *dev,
> > vio_cmo_dealloc(viodev, alloc_size);
> > }
> >
> > +/* cannot be const */
> > struct dma_map_ops vio_dma_mapping_ops = {
>
> The problem with leaving this not const is that a pointer to it is later
> assigned to an archdata::dma_ops which you have made into a const pointer
> earlier in this patch. This will generate a warning which is fatal in
> arch/powerpc as we compile that directory with -Werror.
Actually with a little more work, it can be made const. The only
assignment to it can be put in the initialiser instead ... As an aside,
it should also be made static.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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next prev parent reply other threads:[~2009-12-05 1:20 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-04 22:00 [PATCH 00/31] constify various _ops structures " Emese Revfy
2009-12-04 22:05 ` [PATCH 01/31] Constify struct acpi_dock_ops " Emese Revfy
2009-12-04 22:08 ` [PATCH 02/31] Constify struct address_space_operations " Emese Revfy
2009-12-05 0:08 ` Matthew Wilcox
2009-12-05 0:36 ` Emese Revfy
2009-12-05 14:27 ` Matthew Wilcox
2009-12-06 0:18 ` Emese Revfy
2009-12-04 22:09 ` [PATCH 03/31] Constify struct backlight_ops " Emese Revfy
2009-12-04 22:12 ` [PATCH 04/31] Constify struct block_device_operations " Emese Revfy
2009-12-04 22:14 ` [PATCH 05/31] Constify struct dma_map_ops " Emese Revfy
2009-12-05 0:59 ` Stephen Rothwell
2009-12-05 1:20 ` Stephen Rothwell [this message]
2009-12-05 2:00 ` Emese Revfy
2009-12-05 2:10 ` Stephen Rothwell
2009-12-05 2:25 ` Emese Revfy
2009-12-05 2:27 ` Stephen Rothwell
2009-12-05 2:52 ` Emese Revfy
2009-12-05 3:21 ` Stephen Rothwell
2009-12-05 13:32 ` Emese Revfy
2009-12-04 22:16 ` [PATCH 06/31] Constify struct e1000_mac_operations " Emese Revfy
2009-12-04 22:39 ` Waskiewicz Jr, Peter P
2009-12-05 0:03 ` Emese Revfy
2009-12-05 0:40 ` Stephen Rothwell
2009-12-05 1:18 ` Emese Revfy
2009-12-05 1:21 ` Jeff Kirsher
2009-12-06 0:37 ` [PATCH 06/31] Constify struct e1000_mac_operations for net-next-2.6 v1 Emese Revfy
2009-12-04 22:17 ` [PATCH 07/31] Constify struct e1000_nvm_operations for 2.6.32 v1 Emese Revfy
2009-12-04 22:40 ` Waskiewicz Jr, Peter P
2009-12-05 0:03 ` Emese Revfy
2009-12-06 0:38 ` [PATCH 07/31] Constify struct e1000_nvm_operations for net-next-2.6 v1 Emese Revfy
2009-12-04 22:19 ` [PATCH 08/31] Constify struct e1000_phy_operations for 2.6.32 v1 Emese Revfy
2009-12-04 22:40 ` Waskiewicz Jr, Peter P
2009-12-05 0:03 ` Emese Revfy
2009-12-06 0:38 ` [PATCH 08/31] Constify struct e1000_phy_operations for net-next-2.6 v1 Emese Revfy
2009-12-04 22:21 ` [PATCH 09/31] Constify struct extent_io_ops for 2.6.32 v1 Emese Revfy
2009-12-07 14:12 ` Chris Mason
2009-12-07 23:27 ` Emese Revfy
2009-12-04 22:22 ` [PATCH 10/31] Constify struct file_lock_operations " Emese Revfy
2009-12-04 22:25 ` [PATCH 11/31] Constify struct file_operations " Emese Revfy
2009-12-04 23:07 ` Emese Revfy
2009-12-05 0:02 ` Emese Revfy
2009-12-05 0:09 ` Greg KH
2009-12-05 2:50 ` Emese Revfy
2009-12-05 4:15 ` Greg KH
2009-12-06 1:47 ` Emese Revfy
2009-12-06 17:25 ` Greg KH
2009-12-07 0:45 ` Emese Revfy
2009-12-07 15:11 ` Greg KH
2009-12-07 17:35 ` Emese Revfy
2009-12-07 17:57 ` Greg KH
2009-12-05 14:16 ` Jiri Slaby
2009-12-06 2:38 ` Emese Revfy
2009-12-06 9:23 ` Jiri Slaby
2009-12-04 22:26 ` [PATCH 12/31] Constify struct hv_ops " Emese Revfy
2009-12-04 22:28 ` [PATCH 13/31] Constify struct intel_dvo_dev_ops " Emese Revfy
2009-12-04 22:29 ` [PATCH 14/31] Constify struct item_operations " Emese Revfy
2009-12-04 22:31 ` [PATCH 15/31] Constify struct iwl_ops " Emese Revfy
2009-12-04 23:05 ` Emese Revfy
2009-12-05 0:02 ` Emese Revfy
2009-12-04 22:32 ` [PATCH 16/31] Constify struct kgdb_arch " Emese Revfy
2009-12-04 22:33 ` [PATCH 17/31] Constify struct kgdb_io " Emese Revfy
2009-12-04 22:35 ` [PATCH 18/31] Constify struct kset_uevent_ops " Emese Revfy
2009-12-04 22:36 ` [PATCH 19/31] Constify struct lock_manager_operations " Emese Revfy
2009-12-04 22:37 ` [PATCH 20/31] Constify struct microcode_ops " Emese Revfy
2009-12-04 22:38 ` [PATCH 21/31] Constify struct mtrr_ops " Emese Revfy
2009-12-07 18:40 ` H. Peter Anvin
2009-12-04 22:39 ` [PATCH 22/31] Constify struct neigh_ops " Emese Revfy
2009-12-04 23:02 ` Emese Revfy
2009-12-04 23:19 ` David Miller
2009-12-05 0:02 ` Emese Revfy
2009-12-04 22:40 ` [PATCH 23/31] Constify struct nlmsvc_binding " Emese Revfy
2009-12-04 22:41 ` [PATCH 24/31] Constify struct pci_raw_ops " Emese Revfy
2009-12-04 22:42 ` [PATCH 25/31] Constify struct platform_hibernation_ops " Emese Revfy
2009-12-04 22:43 ` [PATCH 26/31] Constify struct platform_suspend_ops " Emese Revfy
2009-12-04 22:44 ` [PATCH 27/31] Constify struct snd_ac97_build_ops " Emese Revfy
2009-12-04 22:47 ` [PATCH 28/31] Constify struct super_operations " Emese Revfy
2009-12-06 1:23 ` Al Viro
2009-12-06 1:41 ` Emese Revfy
2009-12-04 22:49 ` [PATCH 29/31] Constify struct sysfs_ops " Emese Revfy
2009-12-04 23:00 ` Emese Revfy
2009-12-04 23:57 ` Stephen Hemminger
2009-12-05 0:03 ` Emese Revfy
2009-12-05 21:15 ` Jens Axboe
2009-12-06 8:58 ` Pekka Enberg
2009-12-07 9:53 ` Hans J. Koch
2009-12-07 17:46 ` Matt Domsch
2009-12-07 20:09 ` David Teigland
2009-12-04 22:50 ` [PATCH 30/31] Constify struct usb_mon_operations " Emese Revfy
2009-12-04 22:51 ` [PATCH 31/31] Constify struct wd_ops " Emese Revfy
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