Commit Graph

116 Commits

Author SHA1 Message Date
Todd Poynor
39f2709991 staging: gasket: apex: move driver-private defines out of apex.h
apex.h is supposed to contain kernel-userspace interface definitions,
but has a number of defines that are only used by apex_driver.c or are
not used at all.  Move driver implementation defines not shared with
userspace to the driver source.  Remove unused defines.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:59:50 -07:00
Todd Poynor
e16116c477 staging: gasket: TODO: remove entry for multi-line alignment style
Multi-line alignment formatting issues fixed, remove the TODO entry for
this.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:59:15 -07:00
Todd Poynor
750452c7e2 staging: gasket: interrupt: fix function param line continuation style
Fix multi-line alignment formatting to look like:
      int ret = long_function_name(device, VARIABLE1, VARIABLE2,
                                   VARIABLE3, VARIABLE4);

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:58:40 -07:00
Todd Poynor
bfec1de4fe staging: gasket: sysfs: fix function param line continuation style
Fix multi-line alignment formatting to look like:
      int ret = long_function_name(device, VARIABLE1, VARIABLE2,
                                   VARIABLE3, VARIABLE4);

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:58:05 -07:00
Todd Poynor
1babb38387 staging: gasket: page table: fix function param line continuation style
Fix multi-line alignment formatting to look like:
      int ret = long_function_name(device, VARIABLE1, VARIABLE2,
                                   VARIABLE3, VARIABLE4);

Many of these TODO items were previously cleaned up during the conversion
to standard logging functions.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:57:29 -07:00
Todd Poynor
18e8ceb69b staging: gasket: ioctl: fix function param line continuation style
Fix multi-line alignment formatting to look like:
      int ret = long_function_name(device, VARIABLE1, VARIABLE2,
                                   VARIABLE3, VARIABLE4);

Many of these TODO items were previously cleaned up during the conversion
to standard logging functions.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:56:48 -07:00
Todd Poynor
7754d4728b staging: gasket: core: fix function param line continuation style
Fix multi-line alignment formatting to look like:
      int ret = long_function_name(device, VARIABLE1, VARIABLE2,
                                   VARIABLE3, VARIABLE4);

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:56:12 -07:00
Todd Poynor
cab8d68d1b staging: gasket: TODO: remove entry for static function declarations
The static function declarations are removed, remove the TODO file entry
for this.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:55:37 -07:00
Todd Poynor
9aed73349f staging: gasket: pg tbl: remove static function forward declarations
Remove forward declarations of static functions, move code to avoid
forward references, for kernel style.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:55:02 -07:00
Todd Poynor
a30af6c49e staging: gasket: interrupt: remove static function forward declarations
Remove forward declarations of static functions, move code to avoid
forward references, for kernel style.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:54:27 -07:00
Todd Poynor
ddd7eaeb8c staging: gasket: ioctl: remove static function forward declarations
Remove forward declarations of static functions, move code to avoid
forward references, for kernel style.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:53:53 -07:00
Todd Poynor
0c423ff06c staging: gasket: core: remove static function forward declarations
Remove forward declarations of static functions, move code to avoid
forward references, for kernel style.

Change-Id: I24ee2667d72dd39e2eb0ac94c1c9790654d06b74
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:53:16 -07:00
Todd Poynor
c538a3d634 staging: gasket: apex: fix function param line continuation style
Fix multi-line alignment formatting to look like:
      int ret = long_function_name(device, VARIABLE1, VARIABLE2,
                                   VARIABLE3, VARIABLE4);

Many of these TODO items were previously cleaned up during the conversion
to standard logging functions.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:50:16 -07:00
Todd Poynor
1694500340 staging: gasket: apex: remove static function forward declarations
Remove forward declarations of static functions, move code to avoid
forward references, for kernel style.

Change-Id: I1078c4840860c5c1cf06a12bfd0409c6db7303ff
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:49:38 -07:00
Todd Poynor
0502a2e1c3 staging: gasket: TODO: remove entry for static function kernel docs
Remove the TODO entry for simplifying kernel doc style comments for
static functions, now that this has been addressed.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:46:15 -07:00
Todd Poynor
2bf72399ca staging: gasket: sysfs: simplify comments for static functions
Static functions don't need kernel doc formatting, can be simplified.
Reformat comments that can be single-line.  Remove extraneous text.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:45:40 -07:00
Todd Poynor
07367070d3 staging: gasket: interrupt: simplify comments for static functions
Static functions don't need kernel doc formatting, can be simplified.
Reformat comments that can be single-line.  Remove extraneous text.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:45:04 -07:00
Todd Poynor
710158f4ca staging: gasket: page table: simplify comments for static functions
Static functions don't need kernel doc formatting, can be simplified.
Reformat comments that can be single-line.  Remove extraneous text.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:44:29 -07:00
Todd Poynor
393f9db42f staging: gasket: ioctl: simplify comments for static functions
Static functions don't need kernel doc formatting, can be simplified.
Reformat comments that can be single-line.  Remove extraneous text.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:43:55 -07:00
Todd Poynor
8393e3f10d staging: gasket: core: simplify comments for static functions
Static functions don't need kernel doc formatting, can be simplified.
Reformat comments that can be single-line.  Remove extraneous text.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:43:20 -07:00
Todd Poynor
5193ebb0e4 staging: gasket: apex: simplify comments for static functions
Static functions don't need kernel doc formatting, can be simplified.
Reformat comments that can be single-line.  Remove extraneous text.

Change-Id: Ia29594eeb2dd6cea38665d26e130237f5f90c94a
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:42:43 -07:00
Todd Poynor
e7585bf384 staging: gasket: core: allow root access based on user namespace
Use user namespace to determine whether gasket device file opener is
root, allowing root access to containers, if necessary.

Reported-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:41:24 -07:00
Todd Poynor
8719d43b7b staging: gasket: page table: hold references to device and pci_dev
Hold references to the struct device and the pci_dev for the page table
while the data structures contian pointers to these.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:40:47 -07:00
Todd Poynor
c5505ad15c staging: gasket: sysfs: hold reference to device while in use
Hold a reference to the struct device while a gasket sysfs mapping
exists for the device and a pointer to the struct is kept in the mapping
data structures.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:40:10 -07:00
Todd Poynor
50ae685ab3 staging: gasket: core: hold reference to pci_dev while used
Hold a reference on the struct pci_dev while a pointer to it is held in
the gasket data structures.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:39:34 -07:00
Dmitriy Cherkasov
1b13804ed5 staging: gasket: use NULL instead of 0 for null pointer
Fixes sparse warning: Using plain integer as NULL pointer

Signed-off-by: Dmitriy Cherkasov <dmitriy@oss-tech.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:39:01 -07:00
Todd Poynor
90e45919f4 staging: gasket: core: hold reference on device while in use
Hold a reference on the struct device while a pointer to that
device is in use by gasket.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:38:26 -07:00
Todd Poynor
7ad8140be7 staging: gasket: page table: remove code for "no dma_ops"
Remove code with TODOs on it for working around apparent problems
previously seen in a qemu environment where dma_ops was not set
correctly.  There is no user of this in the current code.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:37:51 -07:00
Todd Poynor
a7ac1d2090 staging: gasket: sysfs: remove unnecessary NULL check on device ptr
The device pointer passed into get_mapping() will never be NULL; the
check is unnecessary.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:37:15 -07:00
Todd Poynor
f10af4ee11 staging: gasket: apex: fixup undefined PCI class
Apex chips with class 0 (PCI_CLASS_NOT_DEFINED) fixed up to
PCI_CLASS_SYSTEM_OTHER to enable PCI resource assignments.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:36:39 -07:00
Todd Poynor
84a0481115 staging: gasket: sysfs: remove check for refcount already zero
Remove the check for refcount already zero, which shouldn't be
necessary.

Change-Id: I0bc3966e21f8695f4787c2482dd5882dcd0f6dd9
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:36:01 -07:00
Todd Poynor
5420904bf3 staging: gasket: don't print device addresses as kernel pointers
Print device addresses as unsigned long, not as kernel pointers.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:35:06 -07:00
Todd Poynor
371a3a39a3 staging: gasket: TODO: remove entry for convert to standard logging
Gasket/apex drivers now use standard logging, remove TODO entry for
this.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:34:31 -07:00
Todd Poynor
047c7f4fc7 staging: gasket: remove gasket logging header
Gasket logging functions no longer used.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:33:56 -07:00
Todd Poynor
57a55b53ab staging: gasket: apex: convert to standard logging
Drop gasket logging calls in favor of standard logging.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:33:20 -07:00
Todd Poynor
158ef348af staging: gasket: sysfs: convert to standard logging
Drop gasket logging calls in favor of standard logging.

Change-Id: Icd23c6c43b671cb8380b36bf26500bc835eec2c7
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:32:42 -07:00
Todd Poynor
213eabfa36 staging: gasket: page table: convert to standard logging
Replace gasket logging calls with standard logging calls.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:30:52 -07:00
Todd Poynor
8b9f03116b staging: gasket: ioctl: convert to standard logging
Replace gasket logging calls with standard logging calls.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:30:18 -07:00
Todd Poynor
ed5e450ff4 staging: gasket: interrupt: convert to standard logging
Convert gasket logging calls to standard functions.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:29:45 -07:00
Todd Poynor
8b9b0eb845 staging: gasket: core: convert to standard logging
Use standard logging functions, drop use of gasket log functions.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:29:11 -07:00
Todd Poynor
c7fc63a2e9 staging: gasket: save struct device for a gasket device
Save the struct device pointer to a gasket device in gasket's metadata,
to facilitate use of standard logging calls and in anticipation of
non-PCI gasket devices in the future.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:28:37 -07:00
Ivan Bornyakov
eb6c6b5f48 staging: gasket: use vzalloc instead of vmalloc/memset
Use vzalloc instead of vmalloc followed by memset with 0.

Signed-off-by: Ivan Bornyakov <brnkv.i1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:28:04 -07:00
Todd Poynor
b04dc30709 staging: gasket: apex: convert various logs to debug level
Debugging information is improperly logged at non-debug log level in a
number of places, and some logs regarding error conditions may be
generated too frequently, such that these could cause performance
problems and/or obscure other logs.  Convert these to debug log level.

Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:27:29 -07:00
Todd Poynor
f6ac13d5f3 staging: gasket: page table: remove unnecessary logs
Some error logs in page table handling code could only be hit in
cases of programming errors not expected in the current code base, and
aren't likely to be useful on their own.  Remove these.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:26:53 -07:00
Todd Poynor
31e62a1e10 staging: gasket: page table: convert various logs to debug level
Debugging information is improperly logged at non-debug log level in a
number of places, and some logs regarding error conditions may be
generated too frequently, such that these could cause performance
problems and/or obscure other logs.  Convert these to debug log level.

Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:26:18 -07:00
Todd Poynor
93769d3ec3 staging: gasket: ioctl common: convert various logs to debug level
Debugging information is improperly logged at non-debug log level in a
number of places, and some logs regarding error conditions may be
generated too frequently, such that these could cause performance
problems and/or obscure other logs.  Convert these to debug log level.

Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:25:42 -07:00
Todd Poynor
4a6fc715d3 staging: gasket: interrupts: convert various logs to debug level
Debugging information is improperly logged at non-debug log level in a
number of places, and some logs regarding error conditions may be
generated too frequently, such that these could cause performance
problems and/or obscure other logs.  Convert these to debug log level.

Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:25:07 -07:00
Todd Poynor
f2e730d312 staging: gasket: core: convert various logs to debug level
Debugging information is improperly logged at non-debug log level in a
number of places, and some logs regarding error conditions may be
generated too frequently, such that these could cause performance
problems and/or obscure other logs.  Convert these to debug log level.

Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:24:34 -07:00
Todd Poynor
8127031234 staging: gasket: apex return error on sysfs show of missing attribute
Apex sysfs show function return -ENODEV if the attribute is not present,
rather than silently failing from the standpoint of the userspace
accessor.

Reported-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:24:01 -07:00
Todd Poynor
391b97b101 staging: gasket: gasket_get_device drop check for NULL pci_dev
The pci_dev field of a struct gasket_dev can never be NULL, there's no
need to check for this in gasket_get_device().

Reported-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-04 11:23:28 -07:00