staging: wilc1000: fix return type of host_int_get_ipaddress

This patch changes return type of host_int_get_ipaddress from s32 to
int. The result variable gets return value from wilc_mq_send that has
data type of int. It should be changed return type of this function as
well as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove return statement

This patch removes return statement that is always returned 0.
wilc_setup_ipaddress can not run to the end due to return statement.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u16ipadd in wilc_setup_ipaddress

This patch renames u16ipadd to ip_addr to remove u16 prefix.
There is no need to use prefix to show data type of this argument.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_setup_ipaddress

This patch changes return type of wilc_setup_ipaddress from s32 to int.
The result variable gets return value from wilc_mq_send that has data
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pstrMulticastFilterParam in wilc_setup_multicast_filter

This patch renames pstrMulticastFilterParam to multicast_filter_param to
avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u32count in wilc_setup_multicast_filter

This patch renames u32count to count to remove u32 prefix.
There is no need to use this prefix to show data type of this argument.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename bIsEnabled in wilc_setup_multicast_filter

This patch renames bIsEnabled to enabled to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_setup_multicast_filter

This patch changes return type of wilc_setup_multicast_filter from s32
to int. The result variable gets return value from wilc_mq_send that has
return type of int. It should be changed return type of this function as
well as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pstrPowerMgmtParam in wilc_set_power_mgmt

This patch renames pstrPowerMgmtParam to pwr_mgmt_info to avoid
camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u32Timeout in wilc_set_power_mgmt

This patch renames u32Timeout to timeout to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename bIsEnabled in wilc_set_power_mgmt

This patch renames bIsEnabled to enabled to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_set_power_mgmt

This patch changes return type of wilc_set_power_mgmt from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u32SessionID in wilc_listen_state_expired

This patch renames u32SessionID to session_id to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_listen_state_expired

This patch changes return type of wilc_listen_state_expired from s32 to
int. The result variable gets return value from wilc_mq_send that has
return type of int. It should be changed return type of this function as
well as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename bReg in wilc_frame_register

This patch renames bReg to reg to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u16FrameType in wilc_frame_register

This patch renames u16FrameType to frame_type to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_frame_register

This patch changes return type of wilc_frame_register from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pstrStatistics in wilc_get_statistics

This patch renames pstrStatistics to stats to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_get_statistics

This patch changes return type of wilc_get_statistics from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename ps8Rssi in wilc_get_rssi

This patch renames ps8Rssi to rssi_level to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_get_rssi

This patch changes return type of wilc_get_rssi from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove wilc_free_join_params

wilc_free_join_params call kfree. There is no need to use
wrapper function, so use kfree directly.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u16ReasonCode in wilc_disconnect

This patch renames u16ReasonCode to reason_code to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_disconnect

This patch changes return type of wilc_disconnect from s32 to int.
The result variable gets return value from wilc_disconnect that has
return type of int. It should be changed return type of this function as
well as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: use kmemdup instead of kmalloc and memcpy

This patch changes kmalloc/memcpy to kmemdup.
It is also added error checking to return -ENOMEM if kmemdup is failed.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pJoinParams in wilc_set_join_req

This patch renames pJoinParams to join_params to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u8channel in wilc_set_join_req

This patch renames u8channel to channel to remove u8 prefix.
There is no need to add prefix in order to show data type of this
variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename tenuAuth_type in wilc_set_join_req

This patch renames tenuAuth_type to auth_type to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u8security in wilc_set_join_req

This patch renames u8security to security to remove u8 prefix.
There is no need to add prefix in order to show data type of this
variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pvUserArg in wilc_set_join_req

This patch renames pvUserArg to user_arg to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pfConnectResult in wilc_set_join_req

This patch renames pfConnectResult to connect_result to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename IEsLen in wilc_set_join_req

This patch renames IEsLen to ies_len to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8IEs in wilc_set_join_req

This patch renames pu8IEs to ies to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename ssidLen in wilc_set_join_req

This patch renames ssidLen to ssid_len to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8ssid in wilc_set_join_req

This patch renames pu8ssid to ssid to remove pu8 prefix.
There is no need to add this prefix in order to show data type of this
variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8bssid in wilc_set_join_req

This patch renames pu8bssid to bssid to remove pu8 prefix.
There is no need to add this prefix in order to show data type of this
variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_set_join_req

This patch changes return type of wilc_set_join_req from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_flush_join_req

This patch changes return type of wilc_flush_join_req from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: replace numerical constant with predefined MACRO

Replace the pre-defined macro signifying the ethernet protocol type
defined in the kernel headers instead of the numerical constant

Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove wilc_sdio_init

wilc_sdio_init return always 1, which is needless. Remove it and it's related
codes also.

Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix always return 0 error

This patch fixes a bug that return always 0 so it fails every time.

Fixes: c1af9db78950 ("staging: wilc1000: call linux_sdio_init instead of io_init")
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8MacAddress in wilc_set_mac_address

This patch changes pu8MacAddress to mac_addr to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_set_mac_address

This patch changes return type of wilc_set_mac_address from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8MacAddress in wilc_get_mac_address

This patch changes pu8MacAddress to mac_addr to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_get_mac_address

This patch changes return type of wilc_get_mac_address from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8PmkidInfoArray in wilc_set_pmkid_info

This patch changes pu8PmkidInfoArray to pmkid to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: replace u32 with int

The data type of variable i changes u32 to int.
It is used as array index to copy some data with memcpy function
so that it is better to use data type of int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_set_pmkid_info

This patch changes return type of wilc_set_pmkid_info from s32 to int.
The result variable gets return value from wilc_mq_send that has return
type of int. It should be changed return type of this function as well
as data type of result variable.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove wilc_set_start_scan_req declaration

This patch deletes wilc_set_start_scan_req declaration. It is not find
wilc_set_start_scan_req definition in this driver.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove wilc_add_tx_gtk declaration

This patch deletes wilc_add_tx_gtk declaration. It is not find
wilc_add_tx_gtk definition in this driver.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: match argument name of wilc_add_rx_gtk declaration

Some argument name of wilc_add_rx_gtk declaration is different to those
of this function definition. It is changed as same name of this function
declaration and definition.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_add_rx_gtk declaration

This patch changes return type of wilc_add_rx_gtk declaration from s32
to int. The return type of this function declaration and definition
should be same as data type of int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: match argument name of wilc_add_ptk declaration

Some arguments name of wilc_add_pkt declaration is different to those of
this function definition. It is changed as same name of this function
declaration and definition.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: fix return type of wilc_add_pkt declaration

This patch changes return type of wilc_add_pkt declaration from s32 to
int. The return type of this function declaration and definition should
be same as data type of int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging:lustre:lclient:Remove unused function

Discard the function ccc_vmpage_page_transient as it is not used
anywhere in the kernel.
Used grep to find occurences.
Problem found using sparse.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging:lustre:lustre:llite:Remove explicit NULL comparision

Replaced explicit NULL comparision with its simplier form.
Found using coccinelle:

@replace_rule@
expression e;
@@

-e == NULL
+ !e

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging:lustre:obdclass:linux:simplify NULL comparison

Remove explicit NULL comparision and replace it with a simpier form.
Detected using checkpatch.pl.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging:lustre:obdclass:linux:remove unnecessary braces

Fixed 'braces {} are not necessary for single statement blocks'
checkpatch.pl warning.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: fix comment style

Fix style of several comments.

Signed-off-by: Sushuruth Sadagopan <sushsada@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: lustre: lov: Added space

Added a spaces around '|' to fix the check detected by
checkpatch.pl

CHECK: spaces preferred around that '|' (ctx:VxV)

Signed-off-by: Anjali Menon <cse.anjalimenon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging:lustre:lustre:obdclass:Remove return from void function

This patch removes the return statement at the end of a void function as
it is not necessary.This was found by checkpatch.pl .

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging:lustre: remove obsolete comment in libcfs_ioctl.h

The libcfs_ioctl.h header has a comment about a snapshot ioctl
which has been removed for years. Lets remove the comment to
avoid confusion. Broken out of patch 17492.

Signed-off-by: Parinay Kondekar <parinay.kondekar@seagate.com>
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844
Reviewed-on: http://review.whamcloud.com/17492
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Add __user annotations in lnetselftest code

This fixes a bunch of sparse warnings.

There is no code change.

Signed-off-by: frank zago <fzago@cray.com>
Reviewed-on: http://review.whamcloud.com/11819
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5396
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/llite: Update ll_dir_ioctl pointer casts with __user

When casting unsingned long userspace pointer from ioctl argument to
a pointer suitable for use with userspace access functions, need
to remember to add __user attribute, to make sparse happy.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Properly cast ll_getname argument to __user in ll_dir_ioctl

This makes sparse happy.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Properly cast ll_fid2path argument to __user in ll_dir_ioctl

This makes sparse happier.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Properly cast ll_fid2path argument to __user in ll_file_ioctl

When calling ll_fid2path, it expects a userspace pointer.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/llite: Update all file.c user pointer casts to __user

unsigned long user address must be casted with __user attribute
to make sparse happy when used with userspace access functions.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Mark lmv_hsm_ct_register/unregister uarg as __user

Since it is a userspace pointer, this makes things neater and
sparse happier.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Properly mark lmv_fid2path uarg argment as __user

This makes sparse happy too.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/lloop: Properly mark userspace pointers in lo/lloop_ioctl

When casting unsigned long userspace pointer for use with
userspace-accessing functions, need to use __user attribute to make
sparse happy.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/osc: Mark osc_getstripe user pointer argument as __user

This shuts some sparse address space mismatch warnings

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/llite: Update llite_lib.c with proper __user attributes

Casts for get/put_user and copy_to/from_user should have __user
attribute for the userspace buffer address.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Declare lov_getstripe lump argument as __user

This is a user pointer, so that makes sparse a lot happier.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/llite: Fix improper userspace access in ll_fiemap

Cannot use memcpy, but use copy_to/from_user instead

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/llite: Properly mark ll_obd_statfs argument as __user

Also update all callers.
This fixes a bunch of address space mismatch warnings from sparse.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/osc: Do not use lprocfs_write_helper in sysfs store methods

sysfs store methods provide us with a kernel buffer already, but
lprocfs_write_helper is expecting a user buffer.
Replace lprocfs_write_helper with kstrto[u]int() calls instead in
contention_seconds_store() and lockless_truncate_store()

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Declare lprocfs_write_frac_u64_helper argument as __user

The buffer that lprocfs_write_frac_u64_helper is working on is
presumed to be a userspace one, so it's not suitable for use
on kernel buffers.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Properly mark argument to p_ioctl in cfs_psdev_ops as __user

This also silents a sparse address space warning

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Properly mark obd_iocontrol argument as __user

Also update all methods and calls everywhere.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Get rid of an ugly statfs hack in lov_iocontrol

For some crazy reason ll_obd_statfs decided to decode async flag
passed from userspace and then pass it via a userspace pointer
argument to lov_iocontrol.
This patch moves flags decoding to lov_iocontrol where it belongs.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/lnet: Properly mark userspace pointer of lnet_ping()

This also happens to silence sparce warnings about different
address spaces.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Mark obd_ioctl_popdata/getdata argument as __user

arg is a userspace pointer and marking it as such makes sparse happy.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Update user pointers in struct obd_ioctl_data

Make them void __user * instead of char * (or char __user *),
void * removes the necessity of explicit casts to proper type
where people also need to remember __user qualifiers, so I think
it works better here.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Change ioctl user pointers in libcfs_ioctl_data

Make them void __user * instead of char * (or char __user *),
void * removes the necessity of explicit casts to proper type
where people also need to remember __user qualifiers, so I think
it works better here.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre: Add __user attributes to libcfs_ioctl_get/popdata args

Just make clear which pointers are from userspace and which are not in
libcfs_ioctl_getdata/libcfs_ioctl_popdata and their callers.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/obdecho: remove userspace LSM handling

In lustre/obdecho/echo_client.c, remove handling of lov_stripe_md
passed from userspace (since userspace never passes it). Remove the
LOV specific code (ed_next_islov) from the echo client (since it
doesn't work).

Remove echo_get_stripe_off_id() and all calls to it since the stripe
count of the passed in lsm is always 0 and the funciton does nothing
in this case. Remove the then unused lsm parameters of
echo_client_page_debug_setup() and echo_client_page_debug_check().

In the OBD_IOC_GETATTR and OBD_IOC_SETATTR cases of
echo_client_iocontrol() do not set the oi_md member of struct obd_info
since only LOV OBD methods access it.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Reviewed-on: http://review.whamcloud.com/12446
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5814
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/obdecho: Remove unused ioctls

Remove long unused ECHO_IOC_GET_STRIPE, ECHO_IOC_SET_STRIPE,
ECHO_IOC_ENQUEUE and ECHO_IOC_CANCEL ioctls.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/lnet: Get rid of IOC_LIBCFS_PORTALS_COMPATIBILITY ioctl

This has been unused for ages and could be safely removed now.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/lnet: Get rid of IOC_LIBCFS_DEBUG_PEER hack

IOC_LIBCFS_DEBUG_PEER was added back in the stone ages to print debug
statistics on a peer when peer timeout happens.
Redo it properly as a separate LNet API call,
also get rid of "ioctl" forwarding into the underlying LNDs,
since no current LNDs implement this function anymore.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/lnet: Make lnet_ping static

It's not used anywhere outside of api-ni.c anyway.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging/lustre/llite: constify export_operations structures

This export_operations structure is never modified, so declare it as const.
Most other structures of this type are already const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: obdecho: constify lu_device_operations and cl_device_operations structures

These lu_device_operations and cl_device_operations structures are never
modified, so declare them as const.  Other structures of these types are
already const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: fix lock imbalance

nrs_resource_put_safe() might hold a lock one one struct
while operating on the other.
There are 2 levels of structures.
Use nrs_policy_put(), which has locking baked in.

sparse gives the following warning:
drivers/staging/lustre//lustre/ptlrpc/nrs.c:498:39:
warning: context imbalance in 'nrs_resource_put_safe' -
  different lock contexts for basic block

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre: Nuke another unsigned >= 0 assert

Clean up another case of the compiler remininding the programmer they
are an idiot:

drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c:308:34: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
  LASSERT(page_pools.epp_waitqlen >= 0);

Just lose the assert, and save a page of compiler spew.

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre: Nuke an unsigned >= 0 assert

Writing asserts for almost-never-can-happen things can be valuable.
Writing an assert that tests that an "unsigned int" hasn't gone negative
isn't.

And it generates an *ugly* message:

drivers/staging/lustre/lustre/llite/rw.c:763:20: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
  LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
                    ^
include/linux/compiler.h:137:45: note: in definition of macro 'unlikely'
 #  define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0))
                                             ^
drivers/staging/lustre/lustre/llite/rw.c:763:2: note: in expansion of macro 'LASSERTF'
  LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
  ^
drivers/staging/lustre/lustre/llite/rw.c:763:20: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
  LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
                    ^
include/linux/compiler.h:137:53: note: in definition of macro 'unlikely'
 #  define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0))
                                                     ^
drivers/staging/lustre/lustre/llite/rw.c:763:2: note: in expansion of macro 'LASSERTF'
  LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
  ^
drivers/staging/lustre/lustre/llite/rw.c:763:20: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
  LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
                    ^
include/linux/compiler.h:110:47: note: in definition of macro 'likely_notrace'
 #define likely_notrace(x) __builtin_expect(!!(x), 1)
                                               ^
include/linux/compiler.h:137:58: note: in expansion of macro '__branch_check__'
 #  define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0))
                                                          ^
drivers/staging/lustre/lustre/llite/../include/linux/../../../include/linux/libcfs/libcfs_private.h:58:6: note: in expansion of macro 'unlikely'
  if (unlikely(!(cond))) {     \
      ^
drivers/staging/lustre/lustre/llite/rw.c:763:2: note: in expansion of macro 'LASSERTF'
  LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
  ^

Umm, thank you, GCC.  We'll delete the problem line so we never see that spew again.

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre: Fix another C compiler whine: set but not used

  CC [M]  drivers/staging/lustre/lustre/libcfs/module.o
drivers/staging/lustre/lustre/libcfs/module.c: In function 'lustre_insert_debugfs':
drivers/staging/lustre/lustre/libcfs/module.c:670:17: warning: variable 'entry' set but not used [-Wunused-but-set-variable]
  struct dentry *entry;
                     ^

Just ignore the dentry returned, and add a comment that we *know*
we're not really leaking the dentry because something else will be able
to reap it via recursion.

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre: Clean up another C warnining: set but not used

drivers/staging/lustre/lustre/fid/../include/lustre_cfg.h: In function 'lustre_cfg_free':
drivers/staging/lustre/lustre/fid/../include/lustre_cfg.h:253:6: warning: variable 'len' set but not used [-Wunused-but-set-variable]
  int len;

Yep, we're just gonna call kfree, no need to calculate len. Bye-bye.

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre: Fix set-but-unused whinge.

drivers/staging/lustre/lustre/fid/lproc_fid.c: In function 'ldebugfs_fid_write_common':
drivers/staging/lustre/lustre/fid/lproc_fid.c:67:6: warning: variable 'rc' set but not used [-Wunused-but-set-variable]
  int rc;

We fix it by *using* the return code to help bulletproof it.  It says it's
test code - it should be *more* bulletproof than production, not less.

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre: Silence warning about 'inline'

Low-hanging fruit first:

  CC [M]  drivers/staging/lustre/lustre/fid/fid_request.o
In file included from drivers/staging/lustre/lustre/fid/../include/lustre_net.h:66:0,
                 from drivers/staging/lustre/lustre/fid/../include/lustre_lib.h:64,
                 from drivers/staging/lustre/lustre/fid/../include/obd.h:52,
                 from drivers/staging/lustre/lustre/fid/fid_request.c:48:
drivers/staging/lustre/lustre/fid/../include/lu_object.h:765:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
 static const inline struct lu_device_operations *
 ^

So we just swap inline and const.  272 warnings gone. :)

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>