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Date: Sat, 05 Dec 2009 03:50:23 +0100
From: Emese Revfy <re.emese@...il.com>
To: Greg KH <gregkh@...e.de>
CC: lenb@...nel.org, astarikovskiy@...e.de, mchehab@...radead.org,
linville@...driver.com, miklos@...redi.hu, davem@...emloft.net,
rostedt@...dmis.org, fweisbec@...il.com, mingo@...hat.com,
avi@...hat.com, mtosatti@...hat.com, torvalds@...ux-foundation.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 11/31] Constify struct file_operations for 2.6.32 v1
Greg KH wrote:
> On Sat, Dec 05, 2009 at 01:02:59AM +0100, Emese Revfy wrote:
>> From: Emese Revfy <re.emese@...il.com>
>>
>> Constify struct file_operations with some exceptions.
>> Per Dave Miller's suggestion, resend with proper CC list and patch format.
>>
>> Signed-off-by: Emese Revfy <re.emese@...il.com>
>> ---
>> drivers/acpi/battery.c | 2 +-
>> drivers/char/pty.c | 16 +++++++++---
>> drivers/char/tty_io.c | 28 ++++-----------------
>> drivers/media/dvb/dvb-core/dvbdev.c | 1 +
>> drivers/net/wireless/b43/debugfs.c | 2 +-
>> drivers/net/wireless/b43legacy/debugfs.c | 2 +-
>> drivers/net/wireless/libertas/debugfs.c | 2 +-
>> drivers/staging/b3dfg/b3dfg.c | 2 +-
>> drivers/staging/dream/qdsp5/adsp_driver.c | 2 +-
>> drivers/staging/dream/qdsp5/audio_aac.c | 2 +-
>> drivers/staging/dream/qdsp5/audio_amrnb.c | 2 +-
>> drivers/staging/dream/qdsp5/audio_evrc.c | 2 +-
>> drivers/staging/dream/qdsp5/audio_in.c | 4 +-
>> drivers/staging/dream/qdsp5/audio_mp3.c | 2 +-
>> drivers/staging/dream/qdsp5/audio_out.c | 4 +-
>> drivers/staging/dream/qdsp5/audio_qcelp.c | 2 +-
>> drivers/staging/dream/qdsp5/snd.c | 2 +-
>> drivers/staging/dream/smd/smd_qmi.c | 2 +-
>> drivers/staging/dream/smd/smd_rpcrouter_device.c | 4 +-
>> drivers/staging/panel/panel.c | 4 +-
>> drivers/staging/poch/poch.c | 2 +-
>> drivers/staging/sep/sep_driver.c | 2 +-
>> drivers/staging/vme/devices/vme_user.c | 2 +-
>> fs/fuse/cuse.c | 20 +++++++++------
>> fs/fuse/dev.c | 8 +++---
>> fs/fuse/fuse_i.h | 10 ++++++++
>> include/linux/tty.h | 14 ++++++++++-
>> include/net/tcp.h | 1 +
>> include/net/udp.h | 1 +
>> kernel/trace/trace_events.c | 2 +
>> virt/kvm/kvm_main.c | 3 ++
>> 31 files changed, 89 insertions(+), 63 deletions(-)
>>
>> diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
>> index 3f4602b..2e41d36 100644
>> --- a/drivers/acpi/battery.c
>> +++ b/drivers/acpi/battery.c
>> @@ -763,7 +763,7 @@ DECLARE_FILE_FUNCTIONS(alarm);
>> }
>>
>> static struct battery_file {
>> - struct file_operations ops;
>> + const struct file_operations ops;
>> mode_t mode;
>> const char *name;
>> } acpi_battery_file[] = {
>> diff --git a/drivers/char/pty.c b/drivers/char/pty.c
>> index 62f282e..d39c67b 100644
>> --- a/drivers/char/pty.c
>> +++ b/drivers/char/pty.c
>> @@ -682,7 +682,18 @@ static int ptmx_open(struct inode *inode, struct file *filp)
>> return ret;
>> }
>>
>> -static struct file_operations ptmx_fops;
>> +static const struct file_operations ptmx_fops = {
>> + .llseek = no_llseek,
>> + .read = tty_read,
>> + .write = tty_write,
>> + .poll = tty_poll,
>> + .unlocked_ioctl = tty_ioctl,
>> + .compat_ioctl = tty_compat_ioctl,
>> + .open = ptmx_open,
>> + .release = tty_release,
>> + .fasync = tty_fasync,
>> +};
>
> You just made these functions all global, for no real good reason. Why
> did you do this?
>
> confused,
>
> greg k-h
I think this is the only way to make ptmx_fops const, provided we want to.
--
Emese
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