The work-queue was used for deferred destruction of hwsim radios;
this does not work well with namespaces about to exit. The one
remaining user has been migrated, so drop the now unused work-queue
instance.
Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This function is only used in the file where it's declared,
so just make it static.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Instead of iterating all the queues after having potentially
changed some queue configurations, rechecking if that was done,
mark the ones that do need a TID change explicitly in a bitmap
and use that to send the change to the firmware.
While at it, also rename iwl_mvm_change_queue_owner() to
iwl_mvm_change_queue_tid() since that's more obvious - the
"kind" of owner isn't immediately clear right now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Merge net-next, which pulled in net, so I can merge a few more
patches that would otherwise conflict.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We set the queue to this state, only to pretty much immediately
move it out of it again. However, we can't even hit any of the
code that checks if the queue is reconfiguring, because all of
this happens under mvm->mutex and we hold the all the way from
marking the queue as RECONFIGURING to marking it as READY again.
Additionally, the queue that became RECONFIGURING would've been
in SHARED state before, and it can safely stay in that state. In
case of errors, it previously would have stayed in RECONFIGURING
which it could never have left again.
Remove the state entirely and just track the queues that need to
be reconfigured in a separate, local, bitmap.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We currently reconfigure the queues after the inactivity check,
but only in one of the two callers. This might leave queues in
a state where the TID owner is wrong, if called when reserving
a queue for a new station.
Clean this up and do the reconfiguration inside the inactivity
check function. This requires changing the locking, but one of
the two places already holds the mvm mutex and the other easily
can.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If TVQM is used we skip over this, move the code into a new
function to get rid of the label.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
There's no need to build a bitmap first and then iterate,
just do the iteration with the right locking directly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
There's no need to have a hw refcount if we just mark the
command queue with a (fake) TID; at that point, the refcount
becomes equivalent to the hweight() of the TID bitmap.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
None of these functions really need to be separate, they're all
only used in sta.c, move them there and make them static.
Fix a small typo in related code while at it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Make this a named struct rather than an anonymous one,
we'll want to refer to it by name later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Move the rt status checking to the start of the resume flow in order
to avoid sending D0I3_END_CMD to the FW. Also, collect dump if an
assert was encountered.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
I recently debugged a DMA mapping oops where a driver was trying to map
a buffer returned from request_firmware() with dma_map_single(). Memory
returned from request_firmware() is mapped into the vmalloc region and
this isn't a valid region to map with dma_map_single() per the DMA
documentation's "What memory is DMA'able?" section.
Unfortunately, we don't really check that in the DMA debugging code, so
enabling DMA debugging doesn't help catch this problem. Let's add a new
DMA debug function to check for a vmalloc address or an invalid virtual
address and print a warning if this happens. This makes it a little
easier to debug these sorts of problems, instead of seeing odd behavior
or crashes when drivers attempt to map the vmalloc space for DMA.
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Debug data dump is not working in flows that stop the device is used
in their error handling. During these flows the op mode mutex is
locked until the device stops. Because of that, any assert generated
from the firmware can be handled only after the device already
stopped.
Since dumping cannot occour after stopping the device, split the the
dump function to two parts, Part that handles locking, and the part
that starts the actual dumping and call the second part in the op mode
stop device function.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Currently in case of DCM with P2P GO where BSS DTIM interval < 220 msec
the fw fails to allocate events for the P2P GO dtim due to long passive
scan events.
Fix this by requesting all scans in this scenario to be fragmented with
fast balance scan time settings. The only exception is in case
fragmented scan was planned to be set due to low latency or high
throughput reason, set the scan timing as planned.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fast balance scan is similar to SCAN_TYPE_MILD, but this scan is
fragmented and has shorter out of operating channel time,
and therefore better match low latency scenarios.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Split TX tracing to be per TB. This is needed now that
AMSDUs can be sent and skb can be larger than trace
limit.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Andrei Vagin <avagin@gmail.com> reported:
> Accoding to the man page, the user should not set si_signo, it has to be set
> by kernel.
>
> $ man 2 rt_sigqueueinfo
>
> The uinfo argument specifies the data to accompany the signal. This
> argument is a pointer to a structure of type siginfo_t, described in
> sigaction(2) (and defined by including <sigaction.h>). The caller
> should set the following fields in this structure:
>
> si_code
> This must be one of the SI_* codes in the Linux kernel source
> file include/asm-generic/siginfo.h, with the restriction that
> the code must be negative (i.e., cannot be SI_USER, which is
> used by the kernel to indicate a signal sent by kill(2)) and
> cannot (since Linux 2.6.39) be SI_TKILL (which is used by the
> kernel to indicate a signal sent using tgkill(2)).
>
> si_pid This should be set to a process ID, typically the process ID of
> the sender.
>
> si_uid This should be set to a user ID, typically the real user ID of
> the sender.
>
> si_value
> This field contains the user data to accompany the signal. For
> more information, see the description of the last (union sigval)
> argument of sigqueue(3).
>
> Internally, the kernel sets the si_signo field to the value specified
> in sig, so that the receiver of the signal can also obtain the signal
> number via that field.
>
> On Tue, Sep 25, 2018 at 07:19:02PM +0200, Eric W. Biederman wrote:
>>
>> If there is some application that calls sigqueueinfo directly that has
>> a problem with this added sanity check we can revisit this when we see
>> what kind of crazy that application is doing.
>
>
> I already know two "applications" ;)
>
> https://github.com/torvalds/linux/blob/master/tools/testing/selftests/ptrace/peeksiginfo.c
> https://github.com/checkpoint-restore/criu/blob/master/test/zdtm/static/sigpending.c
>
> Disclaimer: I'm the author of both of them.
Looking at the kernel code the historical behavior has alwasy been to prefer
the signal number passed in by the kernel.
So sigh. Implmenet __copy_siginfo_from_user and __copy_siginfo_from_user32 to
take that signal number and prefer it. The user of ptrace will still
use copy_siginfo_from_user and copy_siginfo_from_user32 as they do not and
never have had a signal number there.
Luckily this change has never made it farther than linux-next.
Fixes: e75dc036c4 ("signal: Fail sigqueueinfo if si_signo != sig")
Reported-by: Andrei Vagin <avagin@gmail.com>
Tested-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
The System Controller Firmware (SCFW) is a low-level system function
which runs on a dedicated Cortex-M core to provide power, clock, and
resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
(QM, QP), and i.MX8QX (QXP, DX).
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
When we TX AMSDU, we shouldn't pad the packet. In the past,
we were building AMSDU only in transport layer, and gen2
functions are built based on this. However, now that op mode
may build AMSDUs, we need to take care of padding also in
gen2 "non-pcie-amsdu" path.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
In the past, we needed to program the keys when entering D3. This was
since we replaced the image. However, now that there is a single
image, this is no longer needed. Note that RSC is sent separately in
a new command. This solves issues with newer devices that support PN
offload. Since driver re-sent the keys, the PN got zeroed and the
receiver dropped the next packets, until PN caught up again.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Provide function to find a ccwgroup device by its busid.
Acked-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This patch is an extension to the zcrypt device driver to provide,
support and maintain multiple zcrypt device nodes. The individual
zcrypt device nodes can be restricted in terms of crypto cards,
domains and available ioctls. Such a device node can be used as a
base for container solutions like docker to control and restrict
the access to crypto resources.
The handling is done with a new sysfs subdir /sys/class/zcrypt.
Echoing a name (or an empty sting) into the attribute "create" creates
a new zcrypt device node. In /sys/class/zcrypt a new link will appear
which points to the sysfs device tree of this new device. The
attribute files "ioctlmask", "apmask" and "aqmask" in this directory
are used to customize this new zcrypt device node instance. Finally
the zcrypt device node can be destroyed by echoing the name into
/sys/class/zcrypt/destroy. The internal structs holding the device
info are reference counted - so a destroy will not hard remove a
device but only marks it as removable when the reference counter drops
to zero.
The mask values are bitmaps in big endian order starting with bit 0.
So adapter number 0 is the leftmost bit, mask is 0x8000... The sysfs
attributes accept 2 different formats:
* Absolute hex string starting with 0x like "0x12345678" does set
the mask starting from left to right. If the given string is shorter
than the mask it is padded with 0s on the right. If the string is
longer than the mask an error comes back (EINVAL).
* Relative format - a concatenation (done with ',') of the
terms +<bitnr>[-<bitnr>] or -<bitnr>[-<bitnr>]. <bitnr> may be any
valid number (hex, decimal or octal) in the range 0...255. Here are
some examples:
"+0-15,+32,-128,-0xFF"
"-0-255,+1-16,+0x128"
"+1,+2,+3,+4,-5,-7-10"
A simple usage examples:
# create new zcrypt device 'my_zcrypt':
echo "my_zcrypt" >/sys/class/zcrypt/create
# go into the device dir of this new device
echo "my_zcrypt" >create
cd my_zcrypt/
ls -l
total 0
-rw-r--r-- 1 root root 4096 Jul 20 15:23 apmask
-rw-r--r-- 1 root root 4096 Jul 20 15:23 aqmask
-r--r--r-- 1 root root 4096 Jul 20 15:23 dev
-rw-r--r-- 1 root root 4096 Jul 20 15:23 ioctlmask
lrwxrwxrwx 1 root root 0 Jul 20 15:23 subsystem -> ../../../../class/zcrypt
...
# customize this zcrypt node clone
# enable only adapter 0 and 2
echo "0xa0" >apmask
# enable only domain 6
echo "+6" >aqmask
# enable all 256 ioctls
echo "+0-255" >ioctls
# now the /dev/my_zcrypt may be used
# finally destroy it
echo "my_zcrypt" >/sys/class/zcrypt/destroy
Please note that a very similar 'filtering behavior' also applies to
the parent z90crypt device. The two mask attributes apmask and aqmask
in /sys/bus/ap act the very same for the z90crypt device node. However
the implementation here is totally different as the ap bus acts on
bind/unbind of queue devices and associated drivers but the effect is
still the same. So there are two filters active for each additional
zcrypt device node: The adapter/domain needs to be enabled on the ap
bus level and it needs to be active on the zcrypt device node level.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
in the pfn_array_table arrays when checking pinned pages.
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Merge tag 'vfio-ccw-20181002' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into fixes
Pull vfio-ccw from Cornelia Huck with the following changes:
- Another fix for vfio-ccw: make sure it accesses the correct entries
in the pfn_array_table arrays when checking pinned pages.
On i.MX6UL/i.MX6ULL, accessing OCOTP directly is wrong because
the ocotp clock needs to be enabled first. Add support for reading
OCOTP through the nvmem API, and keep the old method there to
support old dtb.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
RK3899 has one cluster with 4 small cores, and another one with 2 big
cores, with cores in different clusters having different OPPs and thus
needing separate set of tunables. Let's enable this via
"have_governor_per_policy" platform data.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Assign the relocated base of the modem image, as the offsets
from the virtual memory might not be based on the physical
address.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
I've realised that the commit 3dae1c0919 ("drm/arm/malidp: Implemented
the size validation for AFBC framebuffers") got bungled up in the
upstreaming process and it was missing an important line from the
function that calculates the size of the AFBC framebuffer
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Liviu Dudau <Liviu.Dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181005152423.GF1156@e110455-lin.cambridge.arm.com
Pull more operating performance points (OPP) framework updates for 4.20
from Viresh Kumar:
"That contains some important fixes reported recently."
* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
PM / OPP: _of_add_opp_table_v2(): increment count only if OPP is added
cpufreq: dt: Try freeing static OPPs only if we have added them
OPP: Return error on error from dev_pm_opp_get_opp_count()
OPP: Improve error handling in dev_pm_opp_of_cpumask_add_table()
There was a small race when removing the sbshc module where
smbus_alarm() had queued acpi_smbus_callback() for deferred execution
but it hadn't been run yet, so that when it did run hc had been freed
and the module unloaded, resulting in an invalid paging request.
A similar race existed when removing the sbs module with regards to
acpi_sbs_callback() (which is called from acpi_smbus_callback()).
We therefore need to ensure no callbacks are pending or executing before
the cleanups are done and the modules are removed.
Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On Apple machines, plugging-in or unplugging the power triggers a GPE
for the EC. Since these machines expose an SBS device, this GPE ends
up triggering the acpi_sbs_callback(). This in turn tries to get the
status of the SBS charger. However, on MBP13,* and MBP14,* machines,
performing the smbus-read operation to get the charger's status triggers
the EC's GPE again. The result is an endless re-triggering and handling
of that GPE, consuming significant CPU resources (> 50% in irq).
In the end this is quite similar to commit 3031cddea6 (ACPI / SBS:
Don't assume the existence of an SBS charger), except that on the above
machines a status of all 1's is returned. And like there, we just want
ignore the charger here.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198169
Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This place should want to initialize array, not a element,
so it should be sizeof(array) instead of sizeof(element)
but now this array only has one element, so no error in
this condition that XFRM_MAX_OFFLOAD_DEPTH is 1
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
if tstats of a device is not allocated, this device is not
registered correctly and can not be used.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
aesni-intel_glue.c still calls crypto_fpu_init() and crypto_fpu_exit()
to register/unregister the "fpu" template. But these functions don't
exist anymore, causing a build error. Remove the calls to them.
Fixes: 944585a64f ("crypto: x86/aes-ni - remove special handling of AES in PCBC mode")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
In the new arm64 CTS-CBC implementation, return an error code rather
than crashing on inputs shorter than AES_BLOCK_SIZE bytes. Also set
cra_blocksize to AES_BLOCK_SIZE (like is done in the cts template) to
indicate the minimum input size.
Fixes: dd597fb33f ("crypto: arm64/aes-blk - add support for CTS-CBC mode")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Both the caam ctrl file and dpaa2_caam export a couple of flags. They
use an #ifdef check to make sure that each flag is only built once,
but this fails if they are both loadable modules:
WARNING: drivers/crypto/caam/dpaa2_caam: 'caam_little_end' exported twice. Previous export was in drivers/crypto/caam/caam.ko
WARNING: drivers/crypto/caam/dpaa2_caam: 'caam_imx' exported twice. Previous export was in drivers/crypto/caam/caam.ko
Change the #ifdef to an IS_ENABLED() check in order to make it work in
all configurations. It may be better to redesign this aspect of the
two drivers in a cleaner way.
Fixes: 8d818c1055 ("crypto: caam/qi2 - add DPAA2-CAAM driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The DCP driver does not obey cryptlen, when doing android CTS this
results in passing to hardware input stream lengths which are not
multiple of block size.
Add a check to prevent future erroneous stream lengths from reaching the
hardware and adjust the scatterlist walking code to obey cryptlen.
Also properly copy-out the IV for chaining.
Signed-off-by: Radu Solea <radu.solea@nxp.com>
Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
DCP writes at least 32 bytes in the output buffer instead of hash length
as documented. Add intermediate buffer to prevent write out of bounds.
When requested to produce null hashes DCP fails to produce valid output.
Add software workaround to bypass hardware and return valid output.
Signed-off-by: Radu Solea <radu.solea@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The mxs-dcp driver fails to probe if sha1/sha256 are supported:
[ 2.455404] mxs-dcp 80028000.dcp: Failed to register sha1 hash!
[ 2.464042] mxs-dcp: probe of 80028000.dcp failed with error -22
This happens because since commit 8996eafdcb ("crypto: ahash - ensure
statesize is non-zero") import/export is mandatory and ahash_prepare_alg
fails on statesize == 0.
A set of dummy import/export functions were implemented in commit
9190b6fd5d ("crypto: mxs-dcp - Add empty hash export and import") but
statesize is still zero and the driver fails to probe. That change was
apparently part of some unrelated refactoring.
Fix by actually implementing import/export.
Signed-off-by: Dan Douglass <dan.douglass@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Use the correct __le32 annotation and accessors to perform the
single round of AES encryption performed inside the AEGIS transform.
Otherwise, tcrypt reports:
alg: aead: Test 1 failed on encryption for aegis128-generic
00000000: 6c 25 25 4a 3c 10 1d 27 2b c1 d4 84 9a ef 7f 6e
alg: aead: Test 1 failed on encryption for aegis128l-generic
00000000: cd c6 e3 b8 a0 70 9d 8e c2 4f 6f fe 71 42 df 28
alg: aead: Test 1 failed on encryption for aegis256-generic
00000000: aa ed 07 b1 96 1d e9 e6 f2 ed b5 8e 1c 5f dc 1c
Fixes: f606a88e58 ("crypto: aegis - Add generic AEGIS AEAD implementations")
Cc: <stable@vger.kernel.org> # v4.18+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Omit the endian swabbing when folding the lengths of the assoc and
crypt input buffers into the state to finalize the tag. This is not
necessary given that the memory representation of the state is in
machine native endianness already.
This fixes an error reported by tcrypt running on a big endian system:
alg: aead: Test 2 failed on encryption for morus640-generic
00000000: a8 30 ef fb e6 26 eb 23 b0 87 dd 98 57 f3 e1 4b
00000010: 21
alg: aead: Test 2 failed on encryption for morus1280-generic
00000000: 88 19 1b fb 1c 29 49 0e ee 82 2f cb 97 a6 a5 ee
00000010: 5f
Fixes: 396be41f16 ("crypto: morus - Add generic MORUS AEAD implementations")
Cc: <stable@vger.kernel.org> # v4.18+
Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Replace "fallthru" with a proper "fall through" annotation.
This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace "fallthru" with a proper "fall through" annotation.
This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc/vdso/Makefile is a replica of arch/x86/entry/vdso/Makefile.
Clean-up the Makefile in the same way as I did for x86:
- Remove unnecessary export
- Put the generated linker script to $(obj)/ instead of $(src)/
- Simplify cmd_vdso2c
The corresponding x86 commits are:
- 61615faf0a ("x86/build/vdso: Remove unnecessary export in Makefile")
- 1742ed2088 ("x86/build/vdso: Put generated linker scripts to $(obj)/")
- c5fcdbf155 ("x86/build/vdso: Simplify 'cmd_vdso2c'")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A null check before a kfree is redundant, so remove it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the of_get_child_by_name() helper instead of open coding searching
for the '/options' node. This removes directly accessing the name
pointer as well.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
On Sun Ultra 5, it happens that the dot clock is not set up properly for
some videomodes. For example, if we set the videomode "r1024x768x60" in
the firmware, Linux would incorrectly set a videomode with refresh rate
180Hz when booting (suprisingly, my LCD monitor can display it, although
display quality is very low).
The reason is this: Older mach64 cards set the divider in the register
VCLK_POST_DIV. The register has four 2-bit fields (the field that is
actually used is specified in the lowest two bits of the register
CLOCK_CNTL). The 2 bits select divider "1, 2, 4, 8". On newer mach64 cards,
there's another bit added - the top four bits of PLL_EXT_CNTL extend the
divider selection, so we have possible dividers "1, 2, 4, 8, 3, 5, 6, 12".
The Linux driver clears the top four bits of PLL_EXT_CNTL and never sets
them, so it can work regardless if the card supports them. However, the
sparc64 firmware may set these extended dividers during boot - and the
mach64 driver detects incorrect dot clock in this case.
This patch makes the driver read the additional divider bit from
PLL_EXT_CNTL and calculate the initial refresh rate properly.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
