This patch fixes the checkpatch warning that else is not generally
useful after a break or return.
This was done using Coccinelle:
@@
expression e2;
statement s1;
@@
if(e2) { ... return ...; }
-else
s
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Goto label was ambiguous change to out_free_page to signify that
we will always go through the path even on success.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Timothy Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Away label is ambiguous change to it err_destroy_channel to make it
clear this is an error path.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Timothy Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the smatch error:
drivers/staging/unisys/visorbus/visorchipset.c:2217 visorchipset_ioctl()
warn: user controlled 'adjustment' cast to postive rl = 's64min-s64max'
This is because we read a s64 and pass it to a function as u64.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix build errors by limiting UNISYS_VISORINPUT to the INPUT kconfig
setting.
drivers/built-in.o: In function `visorinput_remove':
visorinput.c:(.text+0x20802e): undefined reference to `input_unregister_device'
drivers/built-in.o: In function `visorinput_probe':
visorinput.c:(.text+0x208177): undefined reference to `input_allocate_device'
visorinput.c:(.text+0x208241): undefined reference to `input_register_device'
visorinput.c:(.text+0x20824d): undefined reference to `input_free_device'
visorinput.c:(.text+0x208286): undefined reference to `input_allocate_device'
visorinput.c:(.text+0x208302): undefined reference to `input_set_abs_params'
visorinput.c:(.text+0x20831a): undefined reference to `input_set_abs_params'
visorinput.c:(.text+0x20833f): undefined reference to `input_register_device'
visorinput.c:(.text+0x20834b): undefined reference to `input_free_device'
visorinput.c:(.text+0x20835f): undefined reference to `input_set_capability'
drivers/built-in.o: In function `visorinput_channel_interrupt':
visorinput.c:(.text+0x20851e): undefined reference to `input_event'
visorinput.c:(.text+0x20862c): undefined reference to `input_event'
drivers/built-in.o: In function `input_report_key':
visorinput.c:(.text+0x207fd1): undefined reference to `input_event'
drivers/built-in.o: In function `input_sync':
visorinput.c:(.text+0x207fdc): undefined reference to `input_event'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch saves off the create_bus and create_device controlvm messages
for the visorhba device, so that they can be resurrected and used in the
kdump kernel.
After this patch, a crash dump can be generated using:
# service kdump start
# echo 1 > /proc/sys/kernel/sysrq
# echo c > /proc/sysrq-trigger
Signed-off-by: Timothy Sell <timothy.sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the dynamic size of the controlvm channel (struct channel_header.size)
instead of the statically computed sizeof(struct controlvm_channel) when
determining the valid bounds for visorchannel_read() and
visorchannel_write().
This prevents an observed problem where kdump was failing because
controlvm_channel.local_crash_msg_offset was pointing beyond the statically
computed size of the channel, even though the channel was physically large
enough. This was causing visorchannel_read() to unecessarily fail, because
we thought we were attempting to access memory outside of the channel.
Signed-off-by: Timothy Sell <timothy.sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Previously if controlvm message payloads (indicated in controlvm message
via struct controlvm_message.hdr.payload_vm_offset) were contained within
the bounds of the channel memory, we would fail to process any controlvm
message that contained payload data. Reason is, the request_mem_region()
would fail, because it overlapped the channel memory. Since
request_mem_region() doesn't actually serve a functional purpose anyway,
this was simply removed.
Signed-off-by: Timothy Sell <timothy.sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Benjamin Romer is no longer a maintainer for the s-Par drivers. David
Kershner will now be the maintainer.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With concurrency managed workqueues, use of dedicated workqueues
can be replaced by using system_wq.
Drop visornic_timeout_reset_workqueue by using system_wq.
Since there is only one work item per devdata and different
devdatas do not need to be ordered, increase of concurrency
level by switching to system_wq should not break anything.
cancel_work_sync() is used to ensure that work is not pending or
executing on any CPU.
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Tested-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With concurrency managed workqueues, use of dedicated workqueues
can be replaced by using system_wq. Drop periodic_controlvm_workqueue
by using system_wq.
Since there is only one work item periodic_controlvm_work and
different periodic_controlvm_works do not need to be ordered, increase
of concurrency level by switching to system_wq should not break anything.
cancel_delayed_work_sync() is used to ensure that work is not pending
or executing on any CPU.
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Tested-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes unnecessary return variables and compresses the
return logic.
The coccinelle script that finds and fixes this issue is:
@@ type T; identifier i,f; constant C; @@
- T i;
...when != i
when strict
( return -C;
|
- i =
+ return
f(...);
- return i;
)
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unnecessary dev_set_drvdata() has been removed since the driver
core clears the driver data to NULL after device release or on
probe failure. There is no need to manually clear the device
driver data to NULL.
The Coccinelle semantic patch used to make this change is as follows:
//<smpl>
@@
struct device *dev;
@@
- dev_set_drvdata(dev, NULL);
//</smpl>
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The pfn field in the channel is 64 bits, the parameter being passed
should be 64 bits as well.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Smatch complained about inconsistent indenting. This patch addresses it.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The other error paths return meaningful error codes, except for the one
when registering a device, which just returned -1. Let's return ENODEV
when it fails to register instead.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify this function by removing the goto in favor of handling errors
immediately. Eliminate the vaguely-named variable x, and remove the
unneeded initialization of rc. Lastly, provide meaningful error values
to the callback function instead of just passing back a -1 for failure.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The value of rc is set by calling a function, so there's no need to
initialize it to -1, or anything at all.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the unnecessary rc and goto messiness, and just handle freeing
the memory before returning an error in the one place where that needs
to happen.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Get rid of the rc = -1 initialization. Return a meaningful error on
failure in the function, or, the rc from a called function if it fails.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the rc, the = -1, and all the goto mess here and just return
directly with a meaningful error number.
The caller only cares about success/failure right now, that needs to be
addressed in a later patch series.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of returning -1, return -ENODEV when there is no probe function
found for the device.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Boolean variables should be assigned true/false rather than 1/0.
This patch makes a correction on such a variable which has boolean
values assigned in all other places within the file.
Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove parentheses on the right hand side of assignment as they are not
needed. Semantic patch used:
@@
expression a, b, c, d;
@@
(
a = (c == d)
|
a =
- (
b
- )
)
Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parser_param_start() had a goto Away, which went to nothing but
a return statement. Remove the goto, the CamelCased label, and
just return directly.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following types of check patch warnings:
else is not generally useful after a break or return
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following types of check patch warnings:
Block comments use * on subsequent lines
Block comments use a trailing */ on a separate line
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following types of check patch warnings:
Block comments use * on subsequent lines
Block comments use a trailing */ on a separate line
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following types of check patch warnings:
Block comments use a trailing */ on a separate line
Comment alignments
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes checkpatch's no space is necessary after a cast
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
this patch removes the following checkpatch warnings:
please use a blank line after …
Please don’t use multiple blank lines
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following type of check patch warnings:
Comparison to NULL could be written
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following checkpatch warning:
spaces preferred around that ‘*’ or ‘|’
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes all the Block comments by using a trailing */
on a separate line
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patches resolves the NULL comparison checkpatch warnings
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch simply fixes all trailing */ by modifying the comments
structures while trying to reduce the total number of lines
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch simply cleans up all checkpatch comment issues
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alloc_etherdev() calls alloc_netdev_mqs(), which
already uses kzalloc/vzalloc.
This clears a sparse warning :
drivers/staging/unisys/visornic/visornic_main.c:1366:15: warning: memset with byte count of 1460112
Signed-off-by: Hugo Camboulive <hugo.camboulive@gmail.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
queue_delayed_work() returns bool, not negative error codes. It returns
false if the work has already been queued or true otherwise. Since
we don't care about that, we can just remove the test.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since "name" is always used directly, force "%s" for the kthread
format string to avoid any potential format string leaks.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>From napi documentation you should only process the amount your
budget allows, if you go over it just wait for the next napi poll
to continue.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the only fixable parenthesis alignment issue in
visorchipset.c. The rest are unworkable because of the length
of the symbol names used.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We should provide more information in the Kconfig help for visorbus and
visorinput.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Removed the blank line before the close brace to remove the check
detected by the checkpatch.pl
CHECK: Blank lines aren't necessary before a close brace '}'
Signed-off-by: Anjali Menon <cse.anjalimenon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes trailling */ from vbuschannel.h and alignment issue on the
same comment block
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the checkpatch warning messages in
controlvmcompletionstatus.h. All the warning messages in this file are
caused by "Block comments use atrailing */ on a separate line"
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes checkpatch.pl message:
CHECK: Alignment should match open parenthesis
Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bhaktipriya Shridhar