Bhagyashri Dighole [Thu, 14 Mar 2019 12:18:03 +0000 (17:48 +0530)]
staging: rtlwifi: Replace 0 with false.
Replace 0 with false, Bool intializations should use true or false.
Detected by Coccinelle semantic patch boolinit.cocci.
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhagyashri Dighole [Wed, 13 Mar 2019 19:07:17 +0000 (00:37 +0530)]
staging: pi433: Remove unused variable.
Remove unused variable which is used to store return value,
Detected by Coccinelle semantic patch returnvar.cocci
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jules Irenge [Wed, 13 Mar 2019 14:53:20 +0000 (14:53 +0000)]
staging: rtl8192e: remove boilerplate license text
Remove boilerplate license text.
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jules Irenge [Wed, 13 Mar 2019 14:53:19 +0000 (14:53 +0000)]
staging: rtl8192e: add SPDX GPL-2.0 license identifier
Add the SPDX GPL-2.0 license identifier to fix checkpatch.pl warning
Issue found by checkpatch.pl warning:
"WARNING: Missing or malformed SPDX-License-Identifier tag in line 1"
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhagyashri Dighole [Wed, 13 Mar 2019 08:15:09 +0000 (13:45 +0530)]
staging: fbtft: line over 80 characters
Fix the checkpatch.pl warning
WARNING: line over 80 characters
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Wed, 13 Mar 2019 08:14:53 +0000 (01:14 -0700)]
staging: gasket: Replace macro __ATTR with __ATTR_NULL
Replace macro __ATTR with __ATTR_NULL since the former one is
unnecessary for gasket_sysfs_attr array terminator. Also silence the
checkpatch.pl warning:
WARNING:Symbolic permissions 'S_IRUGO' are not preferred. Consider using
octal
permissions '0444'.
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
NeilBrown [Mon, 11 Mar 2019 23:09:37 +0000 (10:09 +1100)]
staging: mt7621-dts: update ethernet settings.
The ethernet in mt7621 is now supported by
drivers/net/ethernet/mediatek/
which provides support for the integrated switch through DSA.
This requires some devicetree changes, and particularly allows
a board dts to identify which switch ports are present.
The second CPU interface - gmac1 - doesn't work yet, so the device
tree information may not be correct. The phy (which is present on the
gnubee-pc2) can negotiate and report connection speed etc, but no
traffic flows.
The gnubee-pc1 has two network ports which are 'black' and 'blue'.
There are connected to switch ports 0 and 4 respectively.
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
NeilBrown [Mon, 11 Mar 2019 23:09:37 +0000 (10:09 +1100)]
staging: remove mt7621-eth
driver/net/ethernet/mediatek/ now supports this hardware,
so we don't need a separate driver.
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Branden Bonaby [Tue, 12 Mar 2019 18:06:15 +0000 (14:06 -0400)]
staging: mt7621-pci: IF statement expression comparing to NULL
Remove comparison to NULL in the if statement expression
to match the Linux Kernel coding style.
CHECK: Comparison to NULL could be written "res"
Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhagyashri Dighole [Tue, 12 Mar 2019 07:16:55 +0000 (12:46 +0530)]
staging: rtl8712: line over 80 characters.
Fix coding style issues, which solves checkpatch.pl warning:
"WARNING: line over 80 characters".
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Branden Bonaby [Tue, 12 Mar 2019 02:48:06 +0000 (22:48 -0400)]
staging: octeon: Lines should not end with a '('
Start function arguments immediately after opening bracket.
CHECK: Lines should not end with a '('.
Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Tue, 12 Mar 2019 08:10:39 +0000 (01:10 -0700)]
staging: most: Replace '--help--' in Kconfig file
Replace '--help--' with 'help' to silence checkpatch.pl warning:
WARNING: prefer 'help' over '---help---' for new help texts
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Tue, 12 Mar 2019 09:35:11 +0000 (02:35 -0700)]
staging: netlogic: Remove unnecessary 'out of memory' message
Remove unnecessary 'out of memory' message to silence checkpatch.pl
warning:
WARNING: Possible unnecessary 'out of memory' message
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:41 +0000 (21:11 +0530)]
staging: rtl8192u: Adjust 'if' to follow Kernel coding Style
-Adjust spaces around if and the condition expression to
maintain Linux Kernel Coding style.
-Remove unnecessary braces around if-else as only single statement is executed.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:40 +0000 (21:11 +0530)]
staging: rtl8192u: Remove casts on the return values of list_entry
Remove casts return values of on all occurances of list_entry.
Casts on the return values of list_entry are useless.
list_entry is a macro and already casts its return value to the type
mentioned in its second argument.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:39 +0000 (21:11 +0530)]
staging: rtl8192u: Remove typedef for struct _RX_REORDER_ENTRY
-Avoid typedefs for structure types to maintain kernel coding style.
-Remove typedefs RX_REORDER_ENTRY and *PRX_REORDER_ENTRY of struct _RX_REORDER_ENTRY .
-Change Structure name _RX_REORDER_ENTRY to rx_reorder_entry to maintain Linux kernel Coding Style.
-Replace occurences of RX_REORDER_ENTRY to struct rx_reorder_entry.
-Replace occurences of PRX_REORDER_ENTRY to struct rx_reorder_entry *.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:38 +0000 (21:11 +0530)]
staging: rtl8192u: Remove typedef for struct _RT_LINK_DETECT_T
-Avoid typedefs for structure types to maintain kernel coding style.
-Remove typedefs RT_LINK_DETECT_T and *PRT_LINK_DETECT_T of struct _RT_LINK_DETECT_T.
-Change Structure name _RT_LINK_DETECT_T to rt_link_detect to maintain Linux kernel Coding Style.
-Replace occurence of RT_LINK_DETECT_T to struct rt_link_detect.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:37 +0000 (21:11 +0530)]
staging: rtl8192u: Remove typedef for struct _RT_POWER_SAVE_CONTROL
-Avoid typedefs for structure types to maintain kernel coding style.
-Remove typedefs RT_POWER_SAVE_CONTROL and *PRT_POWER_SAVE_CONTROL of struct _RT_POWER_SAVE_CONTROL.
-Change Structure name _RT_POWER_SAVE_CONTROL to rt_power_save_control to maintain Linux kernel Coding Style.
-Replace occurence of _RT_POWER_SAVE_CONTROL to struct rt_power_save_control.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:36 +0000 (21:11 +0530)]
staging: rtl8192u: Remove typedef for struct _IbssParms
-Avoid typedefs for structure types to maintain kernel coding style.
-Remove typedefs IbssParms and *PIbssParms of struct _IbssParms.
-Change Structure name _IbssParms to ibss_parms to maintain Linux kernel Coding Style.
-Replace occurence of IbssParms to struct ibss_parms.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhanusree Pola [Mon, 11 Mar 2019 15:41:35 +0000 (21:11 +0530)]
staging: rtl8192u: Remove typedef for struct _bandwidth_autoswitch
-Avoid typedefs for structure types to maintain kernel coding style.
-Remove typedefs bandwidth_autoswitch and *pbandwidth_autoswitch of
struct _bandwidth_autoswitch.
-Change Structure name _bandwidth_autoswitch to bandwidth_autoswitch to
maintain Linux kernel Coding Style.
-Replace occurence of bandwidth_autoswitch to struct bandwidth_autoswitch.
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sat, 9 Mar 2019 15:15:06 +0000 (20:45 +0530)]
staging: wilc1000: remove unnecessary local variables
Remove unnecessary local variable "ret" and its assignments from
functions wilc_set_tx_power and wilc_get_tx_power. Suggested by
Coccinelle.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sat, 9 Mar 2019 17:51:36 +0000 (23:21 +0530)]
staging: media: zoran: remove unnecessary parentheses
Remove unnecessary parentheses from right hand side of
assignments. Suggested by Coccinelle.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sat, 9 Mar 2019 18:16:08 +0000 (23:46 +0530)]
staging: rtlwifi: phydm: remove unnecessary parentheses
Remove unnecessary parentheses around the right hand side of assignment
operator. Issue found using Coccinelle.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Debleena Sen [Sat, 9 Mar 2019 18:53:37 +0000 (10:53 -0800)]
staging: vboxvideo: Do not return -ENOSYS
New instances of ENOSYS are errors. ENOSYS should be used for nonexistent
syscalls only. Use ENODEV instead as there should not be any other
driver for a virtual device that might share buffers with vboxvideo.
In vbox_prime.c, replace all occurrences of -ENOSYS with -ENODEV to fix
checkpatch.pl warning:
WARNING: ENOSYS means 'invalid syscall nr' and nothing else
Signed-off-by: Debleena Sen <idebleenasen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nishka Dasgupta [Sun, 10 Mar 2019 18:38:36 +0000 (00:08 +0530)]
staging: sm750fb: Edit CamelCase in local variables
Edit CamelCase in local variables across 4 files:
- sm750fb/ddk750_chip.c
- sm750fb/ddk750_chip.h
- sm750fb/ddk750_dvi.c
- sm750fb/ddk750_sii164.c
to comply with the coding style. Also edit associated comments
accordingly.
Issue found with Checkpatch.
Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Branden Bonaby [Mon, 11 Mar 2019 13:31:57 +0000 (09:31 -0400)]
staging: vt6655: line over 80 characters
Move function arguments that go over the 80 characters a line limit to a new line.
"WARNING: line over 80 characters".
Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Sat, 9 Mar 2019 07:31:25 +0000 (23:31 -0800)]
staging: most: dim2: reg.h: Correct SPDX-License-Identifier
Correct SPDX-License-Identifier comment characters to silence
checkpatch.pl warning:
WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Sat, 9 Mar 2019 07:31:24 +0000 (23:31 -0800)]
staging: most: dim2: sysfs.h: Correct SPDX-License-Identifier
Correct SPDX-License-Identifier comment characters to silence
checkpatch.pl warning:
WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Sat, 9 Mar 2019 07:31:23 +0000 (23:31 -0800)]
staging: most: dim2: hal.h: Correct SPDX-License-Identifier
Correct SPDX-License-Identifier comment characters to silence
checkpatch.pl warning:
WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Sat, 9 Mar 2019 07:31:21 +0000 (23:31 -0800)]
staging: most: dim2: errors.h: Correct SPDX-License-Identifier
Correct SPDX-License-Identifier comment characters to silence
checkpatch.pl warning:
WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sat, 9 Mar 2019 09:31:58 +0000 (15:01 +0530)]
staging: octeon-usb: remove unnecessary variable frame_number
Remove unnecessary local variable "frame_number" and its assignments from function
cvmx_usb_get_frame_numbe. Suggested by Coccinelle.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhagyashri Dighole [Fri, 8 Mar 2019 15:31:28 +0000 (21:01 +0530)]
staging: fbtft: convert a macro to a function.
Convert a macro to an inline function to improve type safety and make
the code simpler.
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Thu, 7 Mar 2019 21:11:29 +0000 (15:11 -0600)]
staging: vt6655: Remove unused function prototype and definition
Remove the MACbIsRegBitsOn function, as it is never called in kernel tree.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Fri, 8 Mar 2019 02:01:13 +0000 (18:01 -0800)]
staging: most: usb: Change '--help--' to 'help' in Kconfig
Change '--help--' in Kconfig file to silence checkpatch.pl warning:
WARNING: prefer 'help' over '---help---' for new help texts
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jules Irenge [Fri, 8 Mar 2019 01:35:00 +0000 (01:35 +0000)]
staging: zoran: remove license boilerplate text
Remove license boilerplate text.
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jules Irenge [Fri, 8 Mar 2019 01:34:59 +0000 (01:34 +0000)]
staging: zoran: add SPDX GPL-2.0+ license identifier
Add the SPDX GPL-2.0 license identifier to fix checkpatch.pl warning.
Issue found by checkpatch.pl warning:
"WARNING: Missing or malformed SPDX-License-Identifier tag in line 1"
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yifeng Li [Sun, 3 Mar 2019 16:55:31 +0000 (00:55 +0800)]
staging: sm750fb: trivial comment indention fix.
In function sm750_hw_copyarea() of sm750_accel.c, there are
some comments in ASCII graphs, describing 4 possible scenarios
of overlapping areas when copying an area. However, the graphs
have broken indention.
The entire SiliconMotion series video controllers, including
SM501, SM712 and SM750 have similar 2D engines, yet, I have
not seen a single version of it with ASCII graphs properly
formatted...
Fix the the misleading ASCII graphs. It would eliminate the
confusions and improve code readability.
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Robert Eshleman [Wed, 6 Mar 2019 15:31:41 +0000 (07:31 -0800)]
staging: rtl8188eu: cleanup spacing style
This patch fixes a few spacing warnings from checkpatch.pl,
as well as an incorrect spacing between a function type and
the function name.
Signed-off-by: Robert Eshleman <bobbyeshleman@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Thu, 7 Mar 2019 11:42:33 +0000 (13:42 +0200)]
staging: media: davinci_vpfe: Fix alignment issues
Fix all the alignment issues in the file to
get rid of checkpatch warnings
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Thu, 7 Mar 2019 11:42:09 +0000 (13:42 +0200)]
staging: media: davinci_vpfe: Fix multiple line dereference
Fix multiple line dereference to improve readability
and avoid checkpatch warning
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Thu, 7 Mar 2019 11:41:45 +0000 (13:41 +0200)]
staging: media: davinci_vpfe: Fix comparison to NULL
Replace comparison to NULL with '!' operator
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Thu, 7 Mar 2019 20:00:08 +0000 (14:00 -0600)]
staging: vt6655: Remove an unused function prototype
Remove an unused function prototype as there is no such function in the
kernel tree.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Thu, 7 Mar 2019 19:23:40 +0000 (21:23 +0200)]
staging: vt6655: Fix malformed SPDX-License-Identifier tag
Replace "//" comment with "/**/" comment
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Thu, 7 Mar 2019 19:04:26 +0000 (21:04 +0200)]
staging: rtl8712: Replace NULL comparisons
Replace all NULL comparisons in the file
to get rid of checkpatch warnings
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Wed, 6 Mar 2019 12:06:40 +0000 (14:06 +0200)]
staging: vc04_services: bcm2835-camera: Fix logical continuations warnings
Break up lines after boolean operator
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Thu, 7 Mar 2019 10:25:48 +0000 (12:25 +0200)]
staging: speakup: Add spaces around operators
Add spaces around math operators to get rid of checkpatch warning
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Wed, 6 Mar 2019 22:48:09 +0000 (16:48 -0600)]
staging: fwserial: Convert macro into an inline function
Convert macro into an inline function to make codebase better
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Wed, 6 Mar 2019 12:32:05 +0000 (14:32 +0200)]
staging: speakup: Spaces around operator
Add spaces around bitwise AND operator
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhagyashri Dighole [Wed, 6 Mar 2019 11:12:22 +0000 (16:42 +0530)]
staging: fbtft: Remove unused #defines.
Remove unused #defines, which is detected while resolving `CHECK:
Avoid CamelCase` issue.
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 22:48:28 +0000 (16:48 -0600)]
staging: vt6655: Align function declaration
Fix function return type and function arguments to improve readbility.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 22:48:27 +0000 (16:48 -0600)]
staging: vt6655: Fix the warning line over 80 characters
Fix the checkpatch.pl warning
WARNING: line over 80 characters
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 22:48:26 +0000 (16:48 -0600)]
staging: vt6655: mac.h: Fix comment style for SPDX-License Identifier
Modify comment style for header type file based on license identifier
syntax.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 22:48:25 +0000 (16:48 -0600)]
staging: vt6655: Remove unnecessary blank line
Fix the check issue provided by checkpatch.pl
CHECK: Blank lines aren't necessary before a close brace '}'
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 22:48:24 +0000 (16:48 -0600)]
staging: vt6655: key.h: Fix comment style for SPDX-License Identifier
Modify comment style for SPDX-License Identifier based on license
identifier syntax.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 22:48:23 +0000 (16:48 -0600)]
staging: vt6655: dpc.h: Fix comment style of SPDX License Identifier
Modify comment style of SPDX License Identifier for header file type, as
per the license identifier syntax.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 16:31:58 +0000 (10:31 -0600)]
staging: vt6655: Fix space around binary operator
Fix the check as per Linux kernel style for use of spaces
CHECK: spaces preferred around that '-'
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Tue, 5 Mar 2019 16:31:57 +0000 (10:31 -0600)]
staging: vt6655: Fix spelling mistake
Fix the check for spelling mistake
CHECK: 'Regsiter' may be misspelled - perhaps 'Register'
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhagyashri Dighole [Wed, 6 Mar 2019 08:55:41 +0000 (14:25 +0530)]
staging: speakup: Comparison to NULL.
Fix coding style issues, detected by checkpatch.pl "CHECK: Comparison to
NULL could be written !tty->ops->write"
Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 16:23:16 +0000 (18:23 +0200)]
staging: vc04_services: bcm2835-camera: Fix multiple line dereference
Fix multiple line dereference to avoid checkpatch warnings
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 15:50:55 +0000 (17:50 +0200)]
staging: vc04-services: bcm2835-audio: Fix alignment issues
Fix all the alignment with open parenthesis issues
detected by checkpatch
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 15:24:49 +0000 (17:24 +0200)]
staging: vboxvideo: Fix open parenthesis at the end of line
Fix open parenthesis at the end of line
to improve readability
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 12:55:55 +0000 (14:55 +0200)]
staging: ralink-gdma: Avoid unnecessary line continuations
Get rid of unnecessary line continuations in
boolean expressions, warning detected by checkpatch
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 12:53:20 +0000 (14:53 +0200)]
staging: ralink-gdma: Replace from uint32_t to u32
Replace all uintr32_t with u32 to avoid getting
checkpatch warning
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 12:50:06 +0000 (14:50 +0200)]
staging: ralink-gdma: Avoid unnecessary line continuations in string
Fix split string in multiple lines
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Tue, 5 Mar 2019 10:57:39 +0000 (12:57 +0200)]
staging: iio: Line over 80 characters
Fix line over 80 characters, warning by checkpatch
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wentao Cai [Tue, 5 Mar 2019 03:25:35 +0000 (19:25 -0800)]
staging: r8712u: Replace '--help--' with 'help'
This patch replace '--help--' in Kconfig to silence checkpatch.pl
warning:
WARNING: prefer 'help' over '---help---' for new help texts
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Mon, 4 Mar 2019 22:23:08 +0000 (00:23 +0200)]
staging: fbtft: Fix line over 80 characters
Fix line with over 80 characters to get rid of the warning
given by checkpatch
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Mon, 4 Mar 2019 19:45:56 +0000 (13:45 -0600)]
staging: vt6655: desc.h: Fix comment style of SPDX-License Identifier
Fix comment style of SPDX License Identifier for header file based on
License Identifier syntax.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Madhumitha Prabakaran [Mon, 4 Mar 2019 19:45:55 +0000 (13:45 -0600)]
staging: vt6655: channel.h: Fix comment style of SPDX License Identifier
Fix the comment style of SPDX License Identifier for header file based
on License Identifier syntax.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nishka Dasgupta [Mon, 4 Mar 2019 17:43:15 +0000 (23:13 +0530)]
staging: greybus: Change NULL comparison to Boolean Negation
Change NULL comparison to boolean negation. Issue found by Checkpatch.
Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Mon, 4 Mar 2019 17:33:25 +0000 (19:33 +0200)]
staging: emxx_udc: Fix open parenthesis at the end of the line
warning detected by checkpatch.pl
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniela Mormocea [Mon, 4 Mar 2019 17:12:02 +0000 (19:12 +0200)]
staging: emxx_udc: Fix equal sign alignment
Warning detected by checkpatch
Signed-off-by: Daniela Mormocea <daniela.mormocea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Debleena Sen [Mon, 4 Mar 2019 14:55:36 +0000 (06:55 -0800)]
staging: wilc1000: Fix line over 80 characters
Break the line after '+' to remove the checkpatch.pl warning. Remove
trailing whitespace after '+' if any:
WARNING: line over 80 characters
Signed-off-by: Debleena Sen <idebleenasen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sun, 3 Mar 2019 10:39:15 +0000 (16:09 +0530)]
staging: rtl8712: rename bSuspended to suspended
- Rename structure field bSuspended to suspended to avoid camelcase.
Suggested by checkpatch.
- Change type to bool as the variable is used as a boolean.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sun, 3 Mar 2019 10:39:14 +0000 (16:09 +0530)]
staging: rtl8712: rename bSurpriseRemoved to surprise_removed
- Rename structure field bSurprisedRemoved to surprised_removed to avoid
camelcase. Suggested by checkpatch.
- Change type to bool as the variable is used as a boolean.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Himadri Pandya [Sun, 3 Mar 2019 10:39:13 +0000 (16:09 +0530)]
staging: rtl8712: rename bDriverStopped to driver_stopped
- Rename structure field bDriverStopped to driver_stopped to avoid
camelcase. Suggested by checkpatch.
- Change type to bool as the variable is being used as boolean.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sun, 17 Mar 2019 21:22:26 +0000 (14:22 -0700)]
Linux 5.1-rc1
Linus Torvalds [Sun, 17 Mar 2019 20:25:26 +0000 (13:25 -0700)]
Merge tag 'kbuild-v5.1-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- add more Build-Depends to Debian source package
- prefix header search paths with $(srctree)/
- make modpost show verbose section mismatch warnings
- avoid hard-coded CROSS_COMPILE for h8300
- fix regression for Debian make-kpkg command
- add semantic patch to detect missing put_device()
- fix some warnings of 'make deb-pkg'
- optimize NOSTDINC_FLAGS evaluation
- add warnings about redundant generic-y
- clean up Makefiles and scripts
* tag 'kbuild-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: remove stale lxdialog/.gitignore
kbuild: force all architectures except um to include mandatory-y
kbuild: warn redundant generic-y
Revert "modsign: Abort modules_install when signing fails"
kbuild: Make NOSTDINC_FLAGS a simply expanded variable
kbuild: deb-pkg: avoid implicit effects
coccinelle: semantic code search for missing put_device()
kbuild: pkg: grep include/config/auto.conf instead of $KCONFIG_CONFIG
kbuild: deb-pkg: introduce is_enabled and if_enabled_echo to builddeb
kbuild: deb-pkg: add CONFIG_ prefix to kernel config options
kbuild: add workaround for Debian make-kpkg
kbuild: source include/config/auto.conf instead of ${KCONFIG_CONFIG}
unicore32: simplify linker script generation for decompressor
h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-
kbuild: move archive command to scripts/Makefile.lib
modpost: always show verbose warning for section mismatch
ia64: prefix header search path with $(srctree)/
libfdt: prefix header search paths with $(srctree)/
deb-pkg: generate correct build dependencies
Linus Torvalds [Sun, 17 Mar 2019 16:21:48 +0000 (09:21 -0700)]
Merge branch 'x86-asm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 asm updates from Thomas Gleixner:
"Two cleanup patches removing dead conditionals and unused code"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Remove unused __constant_c_x_memset() macro and inlines
x86/asm: Remove dead __GNUC__ conditionals
Linus Torvalds [Sun, 17 Mar 2019 16:19:22 +0000 (09:19 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"Three fixes for the fallout from the TSX errata workaround:
- Prevent memory corruption caused by a unchecked out of bound array
index.
- Two trivial fixes to address compiler warnings"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Make dev_attr_allow_tsx_force_abort static
perf/x86: Fixup typo in stub functions
perf/x86/intel: Fix memory corruption
Linus Torvalds [Sun, 17 Mar 2019 16:16:22 +0000 (09:16 -0700)]
Merge tag 'for-linus-5.1b-rc1b-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"A fix for a Xen bug introduced by David's series for excluding
ballooned pages in vmcores"
* tag 'for-linus-5.1b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/balloon: Fix mapping PG_offline pages to user space
Linus Torvalds [Sun, 17 Mar 2019 16:10:56 +0000 (09:10 -0700)]
Merge tag '9p-for-5.1' of git://github.com/martinetd/linux
Pull 9p updates from Dominique Martinet:
"Here is a 9p update for 5.1; there honestly hasn't been much.
Two fixes (leak on invalid mount argument and possible deadlock on
i_size update on 32bit smp) and a fall-through warning cleanup"
* tag '9p-for-5.1' of git://github.com/martinetd/linux:
9p/net: fix memory leak in p9_client_create
9p: use inode->i_lock to protect i_size_write() under 32-bit
9p: mark expected switch fall-through
kbuild test robot [Wed, 13 Mar 2019 18:42:43 +0000 (02:42 +0800)]
perf/x86/intel: Make dev_attr_allow_tsx_force_abort static
Fixes: 400816f60c54 ("perf/x86/intel: Implement support for TSX Force Abort")
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: kbuild-all@01.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190313184243.GA10820@lkp-sb-ep06
Masahiro Yamada [Sun, 17 Mar 2019 06:05:03 +0000 (15:05 +0900)]
kconfig: remove stale lxdialog/.gitignore
When this .gitignore was added, lxdialog was an independent hostprogs-y.
Now that all objects in lxdialog/ are directly linked to mconf, the
lxdialog is no longer generated.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Sun, 17 Mar 2019 02:01:09 +0000 (11:01 +0900)]
kbuild: force all architectures except um to include mandatory-y
Currently, every arch/*/include/uapi/asm/Kbuild explicitly includes
the common Kbuild.asm file. Factor out the duplicated include directives
to scripts/Makefile.asm-generic so that no architecture would opt out
of the mandatory-y mechanism.
um is not forced to include mandatory-y since it is a very exceptional
case which does not support UAPI.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Sun, 17 Mar 2019 02:01:08 +0000 (11:01 +0900)]
kbuild: warn redundant generic-y
The generic-y is redundant under the following condition:
- arch has its own implementation
- the same header is added to generated-y
- the same header is added to mandatory-y
If a redundant generic-y is found, the warning like follows is displayed:
scripts/Makefile.asm-generic:20: redundant generic-y found in arch/arm/include/asm/Kbuild: timex.h
I fixed up arch Kbuild files found by this.
Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Douglas Anderson [Fri, 15 Mar 2019 16:25:03 +0000 (09:25 -0700)]
Revert "modsign: Abort modules_install when signing fails"
This reverts commit
caf6fe91ddf62a96401e21e9b7a07227440f4185.
The commit was fine but is no longer needed as of commit
3a2429e1faf4
("kbuild: change if_changed_rule for multi-line recipe"). Let's go
back to using ";" to be consistent.
For some discussion, see:
https://lkml.kernel.org/r/CAK7LNASde0Q9S5GKeQiWhArfER4S4wL1=R_FW8q0++_X3T5=hQ@mail.gmail.com
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Douglas Anderson [Thu, 14 Mar 2019 23:41:59 +0000 (16:41 -0700)]
kbuild: Make NOSTDINC_FLAGS a simply expanded variable
During a simple no-op (nothing changed) build I saw 39 invocations of
the C compiler with the argument "-print-file-name=include". We don't
need to call the C compiler 39 times for this--one time will suffice.
Let's change NOSTDINC_FLAGS to a simply expanded variable to avoid
this since there doesn't appear to be any reason it should be
recursively expanded.
On my build this shaved ~400 ms off my "no-op" build.
Note that the recursive expansion seems to date back to the (really
old) commit
e8f5bdb02ce0 ("[PATCH] Makefile include path ordering").
It's a little unclear to me if the point of that patch was to switch
the variable to be recursively expanded (which it did) or to avoid
directly assigning to NOSTDINC_FLAGS (AKA to switch to +=) because
someone else (out of tree?) was setting it. I presume later since if
the only goal was to switch to recursive expansion the patch would
have just removed the ":".
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Arseny Maslennikov [Sat, 9 Mar 2019 15:43:06 +0000 (18:43 +0300)]
kbuild: deb-pkg: avoid implicit effects
* The man page for dpkg-source(1) notes:
> -b, --build directory [format-specific-parameters]
> Build a source package (--build since dpkg 1.17.14).
> <...>
>
> dpkg-source will build the source package with the first
> format found in this ordered list: the format indicated
> with the --format command line option, the format
> indicated in debian/source/format, “1.0”. The fallback
> to “1.0” is deprecated and will be removed at some point
> in the future, you should always document the desired
> source format in debian/source/format. See section
> SOURCE PACKAGE FORMATS for an extensive description of
> the various source package formats.
Thus it would be more foolproof to explicitly use 1.0 (as we always
did) than to rely on dpkg-source's defaults.
* In a similar vein, debian/rules is not made executable by mkdebian,
and dpkg-source warns about that but still silently fixes the file.
Let's be explicit once again.
Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Wen Yang [Fri, 15 Feb 2019 07:55:19 +0000 (15:55 +0800)]
coccinelle: semantic code search for missing put_device()
The of_find_device_by_node() takes a reference to the underlying device
structure, we should release that reference.
The implementation of this semantic code search is:
In a function, for a local variable returned by calling
of_find_device_by_node(),
a, if it is released by a function such as
put_device()/of_dev_put()/platform_device_put() after the last use,
it is considered that there is no reference leak;
b, if it is passed back to the caller via
dev_get_drvdata()/platform_get_drvdata()/get_device(), etc., the
reference will be released in other functions, and the current function
also considers that there is no reference leak;
c, for the rest of the situation, the current function should release the
reference by calling put_device, this code search will report the
corresponding error message.
By using this semantic code search, we have found some object reference leaks,
such as:
commit
11907e9d3533 ("ASoC: fsl-asoc-card: fix object reference leaks in
fsl_asoc_card_probe")
commit
a12085d13997 ("mtd: rawnand: atmel: fix possible object reference leak")
commit
11493f26856a ("mtd: rawnand: jz4780: fix possible object reference leak")
There are still dozens of reference leaks in the current kernel code.
Further, for the case of b, the object returned to other functions may also
have a reference leak, we will continue to develop other cocci scripts to
further check the reference leak.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Markus Elfring <Markus.Elfring@web.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Linus Torvalds [Sat, 16 Mar 2019 20:47:14 +0000 (13:47 -0700)]
Merge tag 'pidfd-v5.1-rc1' of git://git./linux/kernel/git/brauner/linux
Pull pidfd system call from Christian Brauner:
"This introduces the ability to use file descriptors from /proc/<pid>/
as stable handles on struct pid. Even if a pid is recycled the handle
will not change. For a start these fds can be used to send signals to
the processes they refer to.
With the ability to use /proc/<pid> fds as stable handles on struct
pid we can fix a long-standing issue where after a process has exited
its pid can be reused by another process. If a caller sends a signal
to a reused pid it will end up signaling the wrong process.
With this patchset we enable a variety of use cases. One obvious
example is that we can now safely delegate an important part of
process management - sending signals - to processes other than the
parent of a given process by sending file descriptors around via scm
rights and not fearing that the given process will have been recycled
in the meantime. It also allows for easy testing whether a given
process is still alive or not by sending signal 0 to a pidfd which is
quite handy.
There has been some interest in this feature e.g. from systems
management (systemd, glibc) and container managers. I have requested
and gotten comments from glibc to make sure that this syscall is
suitable for their needs as well. In the future I expect it to take on
most other pid-based signal syscalls. But such features are left for
the future once they are needed.
This has been sitting in linux-next for quite a while and has not
caused any issues. It comes with selftests which verify basic
functionality and also test that a recycled pid cannot be signaled via
a pidfd.
Jon has written about a prior version of this patchset. It should
cover the basic functionality since not a lot has changed since then:
https://lwn.net/Articles/773459/
The commit message for the syscall itself is extensively documenting
the syscall, including it's functionality and extensibility"
* tag 'pidfd-v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
selftests: add tests for pidfd_send_signal()
signal: add pidfd_send_signal() syscall
Linus Torvalds [Sat, 16 Mar 2019 20:05:32 +0000 (13:05 -0700)]
Merge tag 'devdax-for-5.1' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull device-dax updates from Dan Williams:
"New device-dax infrastructure to allow persistent memory and other
"reserved" / performance differentiated memories, to be assigned to
the core-mm as "System RAM".
Some users want to use persistent memory as additional volatile
memory. They are willing to cope with potential performance
differences, for example between DRAM and 3D Xpoint, and want to use
typical Linux memory management apis rather than a userspace memory
allocator layered over an mmap() of a dax file. The administration
model is to decide how much Persistent Memory (pmem) to use as System
RAM, create a device-dax-mode namespace of that size, and then assign
it to the core-mm. The rationale for device-dax is that it is a
generic memory-mapping driver that can be layered over any "special
purpose" memory, not just pmem. On subsequent boots udev rules can be
used to restore the memory assignment.
One implication of using pmem as RAM is that mlock() no longer keeps
data off persistent media. For this reason it is recommended to enable
NVDIMM Security (previously merged for 5.0) to encrypt pmem contents
at rest. We considered making this recommendation an actively enforced
requirement, but in the end decided to leave it as a distribution /
administrator policy to allow for emulation and test environments that
lack security capable NVDIMMs.
Summary:
- Replace the /sys/class/dax device model with /sys/bus/dax, and
include a compat driver so distributions can opt-in to the new ABI.
- Allow for an alternative driver for the device-dax address-range
- Introduce the 'kmem' driver to hotplug / assign a device-dax
address-range to the core-mm.
- Arrange for the device-dax target-node to be onlined so that the
newly added memory range can be uniquely referenced by numa apis"
NOTE! I'm not entirely happy with the whole "PMEM as RAM" model because
we currently have special - and very annoying rules in the kernel about
accessing PMEM only with the "MC safe" accessors, because machine checks
inside the regular repeat string copy functions can be fatal in some
(not described) circumstances.
And apparently the PMEM modules can cause that a lot more than regular
RAM. The argument is that this happens because PMEM doesn't necessarily
get scrubbed at boot like RAM does, but that is planned to be added for
the user space tooling.
Quoting Dan from another email:
"The exposure can be reduced in the volatile-RAM case by scanning for
and clearing errors before it is onlined as RAM. The userspace tooling
for that can be in place before v5.1-final. There's also runtime
notifications of errors via acpi_nfit_uc_error_notify() from
background scrubbers on the DIMM devices. With that mechanism the
kernel could proactively clear newly discovered poison in the volatile
case, but that would be additional development more suitable for v5.2.
I understand the concern, and the need to highlight this issue by
tapping the brakes on feature development, but I don't see PMEM as RAM
making the situation worse when the exposure is also there via DAX in
the PMEM case. Volatile-RAM is arguably a safer use case since it's
possible to repair pages where the persistent case needs active
application coordination"
* tag 'devdax-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
device-dax: "Hotplug" persistent memory for use like normal RAM
mm/resource: Let walk_system_ram_range() search child resources
mm/memory-hotplug: Allow memory resources to be children
mm/resource: Move HMM pr_debug() deeper into resource code
mm/resource: Return real error codes from walk failures
device-dax: Add a 'modalias' attribute to DAX 'bus' devices
device-dax: Add a 'target_node' attribute
device-dax: Auto-bind device after successful new_id
acpi/nfit, device-dax: Identify differentiated memory with a unique numa-node
device-dax: Add /sys/class/dax backwards compatibility
device-dax: Add support for a dax override driver
device-dax: Move resource pinning+mapping into the common driver
device-dax: Introduce bus + driver model
device-dax: Start defining a dax bus model
device-dax: Remove multi-resource infrastructure
device-dax: Kill dax_region base
device-dax: Kill dax_region ida
Linus Torvalds [Sat, 16 Mar 2019 19:51:50 +0000 (12:51 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"This is the final round of mostly small fixes and performance
improvements to our initial submit.
The main regression fix is the ia64 simscsi build failure which was
missed in the serial number elimination conversion"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
scsi: ia64: simscsi: use request tag instead of serial_number
scsi: aacraid: Fix performance issue on logical drives
scsi: lpfc: Fix error codes in lpfc_sli4_pci_mem_setup()
scsi: libiscsi: Hold back_lock when calling iscsi_complete_task
scsi: hisi_sas: Change SERDES_CFG init value to increase reliability of HiLink
scsi: hisi_sas: Send HARD RESET to clear the previous affiliation of STP target port
scsi: hisi_sas: Set PHY linkrate when disconnected
scsi: hisi_sas: print PHY RX errors count for later revision of v3 hw
scsi: hisi_sas: Fix a timeout race of driver internal and SMP IO
scsi: hisi_sas: Change return variable type in phy_up_v3_hw()
scsi: qla2xxx: check for kstrtol() failure
scsi: lpfc: fix 32-bit format string warning
scsi: lpfc: fix unused variable warning
scsi: target: tcmu: Switch to bitmap_zalloc()
scsi: libiscsi: fall back to sendmsg for slab pages
scsi: qla2xxx: avoid printf format warning
scsi: lpfc: resolve static checker warning in lpfc_sli4_hba_unset
scsi: lpfc: Correct __lpfc_sli_issue_iocb_s4 lockdep check
scsi: ufs: hisi: fix ufs_hba_variant_ops passing
scsi: qla2xxx: Fix panic in qla_dfs_tgt_counters_show
...
Linus Torvalds [Sat, 16 Mar 2019 19:36:39 +0000 (12:36 -0700)]
Merge tag 'for-5.1/block-post-
20190315' of git://git.kernel.dk/linux-block
Pull more block layer changes from Jens Axboe:
"This is a collection of both stragglers, and fixes that came in after
I finalized the initial pull. This contains:
- An MD pull request from Song, with a few minor fixes
- Set of NVMe patches via Christoph
- Pull request from Konrad, with a few fixes for xen/blkback
- pblk fix IO calculation fix (Javier)
- Segment calculation fix for pass-through (Ming)
- Fallthrough annotation for blkcg (Mathieu)"
* tag 'for-5.1/block-post-
20190315' of git://git.kernel.dk/linux-block: (25 commits)
blkcg: annotate implicit fall through
nvme-tcp: support C2HData with SUCCESS flag
nvmet: ignore EOPNOTSUPP for discard
nvme: add proper write zeroes setup for the multipath device
nvme: add proper discard setup for the multipath device
nvme: remove nvme_ns_config_oncs
nvme: disable Write Zeroes for qemu controllers
nvmet-fc: bring Disconnect into compliance with FC-NVME spec
nvmet-fc: fix issues with targetport assoc_list list walking
nvme-fc: reject reconnect if io queue count is reduced to zero
nvme-fc: fix numa_node when dev is null
nvme-fc: use nr_phys_segments to determine existence of sgl
nvme-loop: init nvmet_ctrl fatal_err_work when allocate
nvme: update comment to make the code easier to read
nvme: put ns_head ref if namespace fails allocation
nvme-trace: fix cdw10 buffer overrun
nvme: don't warn on block content change effects
nvme: add get-feature to admin cmds tracer
md: Fix failed allocation of md_register_thread
It's wrong to add len to sector_nr in raid10 reshape twice
...
Linus Torvalds [Sat, 16 Mar 2019 19:28:18 +0000 (12:28 -0700)]
Merge tag 'nfs-for-5.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Bugfixes:
- Fix an Oops in SUNRPC back channel tracepoints
- Fix a SUNRPC client regression when handling oversized replies
- Fix the minimal size for SUNRPC reply buffer allocation
- rpc_decode_header() must always return a non-zero value on error
- Fix a typo in pnfs_update_layout()
Cleanup:
- Remove redundant check for the reply length in call_decode()"
* tag 'nfs-for-5.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Remove redundant check for the reply length in call_decode()
SUNRPC: Handle the SYSTEM_ERR rpc error
SUNRPC: rpc_decode_header() must always return a non-zero value on error
SUNRPC: Use the ENOTCONN error on socket disconnect
SUNRPC: Fix the minimal size for reply buffer allocation
SUNRPC: Fix a client regression when handling oversized replies
pNFS: Fix a typo in pnfs_update_layout
fix null pointer deref in tracepoints in back channel
Linus Torvalds [Sat, 16 Mar 2019 17:45:17 +0000 (10:45 -0700)]
Merge tag 'powerpc-5.1-2' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"One fix to prevent runtime allocation of 16GB pages when running in a
VM (as opposed to bare metal), because it doesn't work.
A small fix to our recently added KCOV support to exempt some more
code from being instrumented.
Plus a few minor build fixes, a small dead code removal and a
defconfig update.
Thanks to: Alexey Kardashevskiy, Aneesh Kumar K.V, Christophe Leroy,
Jason Yan, Joel Stanley, Mahesh Salgaonkar, Mathieu Malaterre"
* tag 'powerpc-5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Include <asm/nmi.h> header file to fix a warning
powerpc/powernv: Fix compile without CONFIG_TRACEPOINTS
powerpc/mm: Disable kcov for SLB routines
powerpc: remove dead code in head_fsl_booke.S
powerpc/configs: Sync skiroot defconfig
powerpc/hugetlb: Don't do runtime allocation of 16G pages in LPAR configuration
Linus Torvalds [Sat, 16 Mar 2019 17:31:02 +0000 (10:31 -0700)]
Merge branch 'work.mount' of git://git./linux/kernel/git/viro/vfs
Pull vfs mount infrastructure fix from Al Viro:
"Fixup for sysfs braino.
Capabilities checks for sysfs mount do include those on netns, but
only if CONFIG_NET_NS is enabled. Sorry, should've caught that
earlier..."
* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix sysfs_init_fs_context() in !CONFIG_NET_NS case
Al Viro [Sat, 16 Mar 2019 13:45:42 +0000 (09:45 -0400)]
fix sysfs_init_fs_context() in !CONFIG_NET_NS case
Permission checks on current's netns should be done only when
netns are enabled.
Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Fixes: 23bf1b6be9c2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sat, 16 Mar 2019 01:52:12 +0000 (18:52 -0700)]
Merge tag '5.1-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb3 updates from Steve French:
"Various tracing and debugging improvements, crediting fixes, some
cleanup, and important fallocate fix (fixes three xfstests) and lock
fix.
Summary:
- Various additional dynamic tracing tracepoints
- Debugging improvements (including ability to query the server via
SMB3 fsctl from userspace tools which can help with stats and
debugging)
- One minor performance improvement (root directory inode caching)
- Crediting (SMB3 flow control) fixes
- Some cleanup (docs and to mknod)
- Important fixes: one to smb3 implementation of fallocate zero range
(which fixes three xfstests) and a POSIX lock fix"
* tag '5.1-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6: (22 commits)
CIFS: fix POSIX lock leak and invalid ptr deref
SMB3: Allow SMB3 FSCTL queries to be sent to server from tools
cifs: fix incorrect handling of smb2_set_sparse() return in smb3_simple_falloc
smb2: fix typo in definition of a few error flags
CIFS: make mknod() an smb_version_op
cifs: minor documentation updates
cifs: remove unused value pointed out by Coverity
SMB3: passthru query info doesn't check for SMB3 FSCTL passthru
smb3: add dynamic tracepoints for simple fallocate and zero range
cifs: fix smb3_zero_range so it can expand the file-size when required
cifs: add SMB2_ioctl_init/free helpers to be used with compounding
smb3: Add dynamic trace points for various compounded smb3 ops
cifs: cache FILE_ALL_INFO for the shared root handle
smb3: display volume serial number for shares in /proc/fs/cifs/DebugData
cifs: simplify how we handle credits in compound_send_recv()
smb3: add dynamic tracepoint for timeout waiting for credits
smb3: display security information in /proc/fs/cifs/DebugData more accurately
cifs: add a timeout argument to wait_for_free_credits
cifs: prevent starvation in wait_for_free_credits for multi-credit requests
cifs: wait_for_free_credits() make it possible to wait for >=1 credits
...
Linus Torvalds [Fri, 15 Mar 2019 22:07:32 +0000 (15:07 -0700)]
Merge branch 'for-linus-5.1-rc1' of git://git./linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
"Bugfix for the UML block device driver"
* 'for-linus-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Fix for a possible OOPS in ubd initialization
um: Remove duplicated include from vector_user.c