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Here support is added for responding to DSP IRQs that are used to
indicate data being available on the DSP. The idea is that we check the
amount of data available upon receipt of an IRQ and on subsequent calls
to the pointer callback we recheck once less than one fragment is
available (to avoid excessive SPI traffic), if there is truely less than
one fragment available we ack the last IRQ and wait for a new one.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The stream is created whilst the compressed stream is opened and a
buffer is created when the DSP powers up. It is necessary at a point
once both the DSP has powered up and the the stream has been opened to
connect a stream to a buffer on the DSP. This is done in the trigger
callback as this is after the DSP has been powered and obviously the
stream must be open. Note that whilst the connect is currently trivial
it is expected that this will get more complex when support for multiple
buffers/streams per DSP is added.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add code that locates and initialises the buffer of compressed data on
the DSP if the firmware supported compressed data capture. The buffer
struct (wm_adsp_compr_buf) is kept separate from the stream struct
(wm_adsp_compr) this will allow much easier support of multiple
streams of data from the one DSP in the future, although support for
this will not be added in this patch chain.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Allow user-space to open a compressed stream, although no data will be
passed yet, as part of this adding the ability to define supported
capabilities per firmware and check these match the stream being opened.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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When working with the compressed framework occasionally vendors will
use esoteric internal audio formats. For such formats it doesn't really
make sense to add an new define to the kernel as their use is not
sufficiently general.
This patch adds a new define SND_AUDIOCODEC_BESPOKE that vendors can use
in such situations.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Register a platform driver for the CODEC and add DAIs that will be used
to connect a compressed record path for the voice control functionality.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Older firmwares don't specify access flags for the controls,
unfortunately the usage of some of these firmware relies on being able
to read back values from the DSP. The current control code will only do
this for volatile controls. This patch will read the control from the
hardware if no flags are specified and the control is currently
enabled, which should cover these legacy use-cases.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This patch rearranges the switch statement in arizona_calc_fratio so
that older codecs are the special cases, with the default case
applying to newer codecs (WM8998 and later). This is preferable
because it avoids having to patch new cases in every time a new
codec is added.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Locking is currently missing from the DSP firmware controls, which can
lead to some race conditions if the controls are accessed as the DSP
powers up or down. This patch adds them to the new power lock.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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We should hold the DSP power lock whilst changing the firmware since we
need to check if it is running first.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Most events around the DSP just need to be locked to ensure that the DSP
can't change power state whilst they are happening. This includes the
debugfs entries and this will make sorting the rest of the locking
simpler.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Both the sysclk and asyncclk members of arizona_priv are signed by we
refer to them through an unsigned pointer. This patch fixes this small
harmless error.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The core expects "const char * const" and "unsigned int" for enum
controls, various places in Arizona use "const char *" and "int".
This patch corrects the type of these arrays.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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When switching between two clock sources using the FLL freerun to smooth
the transition we should wait 32uS after putting the FLL into freerun
before we proceed. In practice we appear to be getting enough delay from
the surrounding code, but better to make it explicit.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Expand the list of available firmware names to include a good selection
of generic uses for the DSP cores.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The wm5110 device contains a hardware ANC block, this patch connects up
controls and routing for this.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This patch adds support for the Cirrus Logic CS47L24 and WM1831 codecs.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The SOC_xxx_DECL() macros already include 'const' so there's
no need to put a const in the source where they are used.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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cpu_relax() on ARC has been barrier only for SMP (and no-op for UP). Per
recent discussions, it is safer to make it a compiler barrier
unconditionally.
Link: http://lkml.kernel.org/r/53A7D3AA.9020100@synopsys.com
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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ARCompact and ARCv2 only have ASL, while binutils used to support LSL as
a alias mnemonic.
Newer binutils (upstream) don't want to do that so replace it.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Bus errors from userspace on ARCompact based cores are handled by core
as a high priority L2 interrupt but current code treated it as interrupt
Handling an interrupt like exception is certainly not going to go unnoticed.
(and it worked so far as we never saw a Bus error from userspace until
IPPK guys tested a DDR controller with ECC error detection etc hence
needed to explicitly trigger/handle such errors)
- So move mem_service exception handler from common code into ARCv2 code.
- In ARCompact code, define mem_service as L2 interrupt handler which
just drops down to pure kernel mode and goes of to enqueue SIGBUS
Reported-by: Nelson Pereira <npereira@synopsys.com>
Tested-by: Ana Martins <amartins@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Now that the xattr handler is passed to the xattr handler operations, we
have access to the attribute name prefix, so simplify
f2fs_xattr_generic_list.
Also, f2fs_xattr_advise_list is only ever called for
f2fs_xattr_advise_handler; there is no need to double check for that.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Changman Lee <cm224.lee@samsung.com>
Cc: Chao Yu <chao2.yu@samsung.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Now that the xattr handler is passed to the xattr handler operations, we
have access to the attribute name prefix, so simplify the squashfs xattr
handlers a bit.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Now that the xattr handler is passed to the xattr handler operations, we
can use the same get and set operations for the user, trusted, and security
xattr namespaces. In those namespaces, we can access the full attribute
name by "reattaching" the name prefix the vfs has skipped for us. Add a
xattr_full_name helper to make this obvious in the code.
For the "system.posix_acl_access" and "system.posix_acl_default"
attributes, handler->prefix is the full attribute name; the suffix is the
empty string.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: v9fs-developer@lists.sourceforge.net
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The xattr_handler operations are currently all passed a file system
specific flags value which the operations can use to disambiguate between
different handlers; some file systems use that to distinguish the xattr
namespace, for example. In some oprations, it would be useful to also have
access to the handler prefix. To allow that, pass a pointer to the handler
to operations instead of the flags value alone.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The vfs checks if a task has the appropriate access for get and set
operations, but it cannot do that for the list operation; the file system
must check for that itself.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The list operations can never be called; they are even documented to be
unused.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Ubifs installs a security xattr handler in sb->s_xattr but doesn't use the
generic_{get,set,list,remove}xattr inode operations needed for processing
this list of attribute handlers; the handler is never called. Instead,
ubifs uses its own xattr handlers which also process security xattrs.
Remove the dead code.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: linux-mtd@lists.infradead.org
Cc: Subodh Nijsure <snijsure@grid-net.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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When a filesystem that contains POSIX ACLs is mounted without ACL support
(-o noacl), the appropriate behavior is not to list any existing POSIX ACL
xattrs. The return value for list xattr handlers in this case is 0, not an
error code: several filesystems that use the POSIX ACL xattr handlers do
not expect the list operation to fail.
Symlinks cannot have ACLs, so posix_acl_xattr_list will never be called for
symlinks in the first place.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The get and set operations of the POSIX ACL xattr handlers failed to check
the attribute names, so all names with "system.posix_acl_access" or
"system.posix_acl_default" as a prefix were accepted. Reject invalid names
from now on.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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After merging the scsi tree, today's linux-next build (powerpc
allyesconfig) failed like this:
In file included from drivers/scsi/mpt3sas/mpt3sas_scsih.c:59:0:
drivers/scsi/mpt3sas/mpt3sas_scsih.c: In function '_scsih_io_done':
drivers/scsi/mpt3sas/mpt3sas_base.h:1414:1: error: inlining failed in call to always_inline 'mpt3sas_scsi_direct_io_get': function body not available
mpt3sas_scsi_direct_io_get(struct MPT3SAS_ADAPTER *ioc, u16 smid);
^
drivers/scsi/mpt3sas/mpt3sas_scsih.c:4448:6: error: called from here
if (mpt3sas_scsi_direct_io_get(ioc, smid) &&
^
In file included from drivers/scsi/mpt3sas/mpt3sas_scsih.c:59:0:
drivers/scsi/mpt3sas/mpt3sas_base.h:1416:1: error: inlining failed in call to always_inline 'mpt3sas_scsi_direct_io_set': function body not available
mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io);
^
drivers/scsi/mpt3sas/mpt3sas_scsih.c:4454:3: error: called from here
mpt3sas_scsi_direct_io_set(ioc, smid, 0);
^
In file included from drivers/scsi/mpt3sas/mpt3sas_scsih.c:5
9:0:
drivers/scsi/mpt3sas/mpt3sas_base.h:1416:1: error: inlining failed in call to always_inline 'mpt3sas_scsi_direct_io_set': function body not available
mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io);
^
drivers/scsi/mpt3sas/mpt3sas_scsih.c:4454:3: error: called from here
mpt3sas_scsi_direct_io_set(ioc, smid, 0);
^
Presumably caused by commit
c84b06a48c4d ("mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Since 4.3 introduced devm_memremap_pages() the pfns handled by DAX may
optionally have a struct page backing. When a mapped pfn reaches
vmf_insert_pfn_pmd() it fails with a crash signature like the following:
kernel BUG at mm/huge_memory.c:905!
[..]
Call Trace:
[<ffffffff812a73ba>] __dax_pmd_fault+0x2ea/0x5b0
[<ffffffffa01a4182>] xfs_filemap_pmd_fault+0x92/0x150 [xfs]
[<ffffffff811fbe02>] handle_mm_fault+0x312/0x1b50
Fix this by falling back to 4K mappings in the pfn_valid() case. Longer
term, vmf_insert_pfn_pmd() needs to grow support for architectures that
can provide a 'pmd_special' capability.
Cc: <stable@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reported-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This reverts commit 52f5eb60940de889ce98a876f6933b574ead3225.
Rockchip drm can't work with generic drm_of_component_probe now
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Seems the crtc helpers call drm_calc_timestamping_constants()
unconditionally even if the driver didn't initialize vblank support by
calling drm_vblank_init(). That used to be OK since the constants were
stored under drm_crtc.
However I broke this with
commit eba1f35dfe14 ("drm: Move timestamping constants into drm_vblank_crtc")
when I moved the constants to live inside the drm_vblank_crtc struct
instead. If drm_vblank_init() isn't called, we don't allocate these
structures, and so drm_calc_timestamping_constants() will oops.
Fix it by adding a check into drm_calc_timestamping_constants() to see
if vblank support was initialized at all. And to keep in line with other
such checks, also toss in a check and warn for the case where vblank
support was initialized, but the wrong number of crtcs was specified.
Fixes the following sort of oops:
BUG: unable to handle kernel NULL pointer dereference at 00000000000000b0
IP: [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
PGD 0
Oops: 0002 [#1] SMP
Modules linked in: sr_mod cdrom mgag200(+) i2c_algo_bit drm_kms_helper ahci syscopyarea sysfillrect sysimgblt libahci fb_sys_fops bnx2x ttm tg3(+) mdio drm ptp sd_mod libata i2c_core pps_core libcrc32c hpsa dm_mirror dm_region_hash dm_log dm_mod
CPU: 0 PID: 418 Comm: kworker/0:2 Not tainted 4.3.0+ #1
Hardware name: HP ProLiant DL380 Gen9, BIOS P89 06/09/2015
Workqueue: events work_for_cpu_fn
task: ffff88046ca95500 ti: ffff88007830c000 task.ti: ffff88007830c000
RIP: 0010:[<ffffffffa014b266>] [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
RSP: 0018:ffff88007830f4e8 EFLAGS: 00010246
RAX: 0000000000fe4c00 RBX: ffff88006a849160 RCX: 0000000000000540
RDX: 0000000000000000 RSI: 000000000000fde8 RDI: ffff88006a849000
RBP: ffff88007830f518 R08: ffff88007830c000 R09: 00000001b87e3712
R10: 00000000000050c4 R11: 0000000000000000 R12: 0000000000fe4c00
R13: ffff88006a849000 R14: 0000000000000000 R15: 000000000000fde8
FS: 0000000000000000(0000) GS:ffff88046f800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000b0 CR3: 00000000019d6000 CR4: 00000000001406f0
Stack:
ffff88007830f518 ffff88006a849000 ffff880c69b90340 ffff880c69b90000
ffff880c69b90348 ffff880c69b90340 ffff88007830f748 ffffffffa042f7e7
ffff88006a849090 0000000000000000 ffff88006a849160 0000000000000000
Call Trace:
[<ffffffffa042f7e7>] drm_crtc_helper_set_mode+0x3d7/0x4b0 [drm_kms_helper]
[<ffffffffa04307d4>] drm_crtc_helper_set_config+0x8d4/0xb10 [drm_kms_helper]
[<ffffffffa01548d4>] drm_mode_set_config_internal+0x64/0x100 [drm]
[<ffffffffa043c342>] drm_fb_helper_pan_display+0xa2/0x280 [drm_kms_helper]
[<ffffffff81392c7b>] fb_pan_display+0xbb/0x170
[<ffffffff8138cf70>] bit_update_start+0x20/0x50
[<ffffffff8138b81b>] fbcon_switch+0x39b/0x590
[<ffffffff8140a3d0>] redraw_screen+0x1a0/0x240
[<ffffffff8140b30e>] do_bind_con_driver+0x2ee/0x310
[<ffffffff8140b651>] do_take_over_console+0x141/0x1b0
[<ffffffff81387377>] do_fbcon_takeover+0x57/0xb0
[<ffffffff8138c98b>] fbcon_event_notify+0x60b/0x750
[<ffffffff810a5599>] notifier_call_chain+0x49/0x70
[<ffffffff810a58dd>] __blocking_notifier_call_chain+0x4d/0x70
[<ffffffff810a5916>] blocking_notifier_call_chain+0x16/0x20
[<ffffffff8139282b>] fb_notifier_call_chain+0x1b/0x20
[<ffffffff81394881>] register_framebuffer+0x1f1/0x330
[<ffffffffa043d9aa>] drm_fb_helper_initial_config+0x27a/0x3d0 [drm_kms_helper]
[<ffffffffa0469b4d>] mgag200_fbdev_init+0xdd/0xf0 [mgag200]
[<ffffffffa0468586>] mgag200_modeset_init+0x176/0x1e0 [mgag200]
[<ffffffffa0464659>] mgag200_driver_load+0x3f9/0x580 [mgag200]
[<ffffffffa014e067>] drm_dev_register+0xa7/0xb0 [drm]
[<ffffffffa015054f>] drm_get_pci_dev+0x8f/0x1e0 [drm]
[<ffffffffa046937b>] mga_pci_probe+0x9b/0xc0 [mgag200]
[<ffffffff813662d5>] local_pci_probe+0x45/0xa0
[<ffffffff8109afe4>] work_for_cpu_fn+0x14/0x20
[<ffffffff8109e13c>] process_one_work+0x14c/0x3c0
[<ffffffff8109eaa4>] worker_thread+0x244/0x470
[<ffffffff8168bfba>] ? __schedule+0x2aa/0x760
[<ffffffff8109e860>] ? rescuer_thread+0x310/0x310
[<ffffffff810a4438>] kthread+0xd8/0xf0
[<ffffffff810a4360>] ? kthread_park+0x60/0x60
[<ffffffff8169030f>] ret_from_fork+0x3f/0x70
[<ffffffff810a4360>] ? kthread_park+0x60/0x60
Code: f6 31 d2 41 89 c2 8b 83 b4 00 00 00 0f af c1 48 98 48 69 c0 40 42 0f 00 48 f7 f6 f6 43 74 10 41 89 c4 75 26 f6 05 9a 6f 03 00 01 <45> 89 96 b0 00 00 00 45 89 a6 ac 00 00 00 75 35 48 83 c4 08 5b
RIP [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
RSP <ffff88007830f4e8>
CR2: 00000000000000b0
Cc: Jeff Moyer <jmoyer@redhat.com>
Reported-by: Jeff Moyer <jmoyer@redhat.com>
References: http://lists.freedesktop.org/archives/dri-devel/2015-November/094217.html
Fixes: eba1f35dfe14 ("drm: Move timestamping constants into drm_vblank_crtc")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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There are several sound drivers that 'select ZONE_DMA'. This is
backwards as ZONE_DMA is an architecture capability exported to drivers.
Switch the polarity of the dependency to disable these drivers when the
architecture does not support ZONE_DMA. This was discovered in the
context of testing/enabling devm_memremap_pages() which depends on
ZONE_DEVICE. ZONE_DEVICE in turn depends on !ZONE_DMA.
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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A bunch of changes that I hope will help in understanding it
better for first-time readers.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This masking prevents access to the end of the device via dax_do_io(),
and is unnecessary as arch_add_memory() would have rejected an unaligned
allocation.
Cc: <stable@vger.kernel.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Rather than punt on the numa node for these e820 ranges try to find a
better answer with memory_add_physaddr_to_nid() when it is available.
Cc: <stable@vger.kernel.org>
Reported-by: Boaz Harrosh <boaz@plexistor.com>
Tested-by: Boaz Harrosh <boaz@plexistor.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Commit ca321d1ca672 "ACPICA: Update NFIT table to rename a flags field"
performed a tree-wide s/ACPI_NFIT_MEM_ARMED/ACPI_NFIT_MEM_NOT_ARMED/
operation, but missed the tools/testing/nvdimm/ directory.
Cc: Bob Moore <robert.moore@intel.com>
Cc: Lv Zheng <lv.zheng@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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hw_breakpoint_restore is only used within suspend.c, so it can be
declared static.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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split_pud and fixup_executable are only called from within mmu.c, so
they can be declared static.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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of_parse_and_init_cpus is only called from within smp.c, so it can be
declared static.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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We should always use linux/types.h instead of asm/types.h for
consistency, and Kbuild actually warns about it:
./usr/include/asm/kvm.h:35: include of <linux/types.h> is preferred over <asm/types.h>
This patch does as Kbuild asks us.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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On a cross-toolchain without glibc support, libgcov may not be
available, and attempting to build an arm64 kernel with GCOV
enabled then results in a build error:
/home/arnd/cross-gcc/lib/gcc/aarch64-linux/5.2.1/../../../../aarch64-linux/bin/ld: cannot find -lgcov
We don't really want to link libgcov into the vdso anyway, so
this patch just disables GCOV in the vdso directory, just as
we do for most other architectures.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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cpus_have_hwcap() is defined as a 'static' function an only used in
one place that is inside of an #ifdef, so we get a warning when
the only user is disabled:
arch/arm64/kernel/cpufeature.c:699:13: warning: 'cpus_have_hwcap' defined but not used [-Wunused-function]
This marks the function as __maybe_unused, so the compiler knows that
it can drop the function definition without warning about it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 37b01d53ceef ("arm64/HWCAP: Use system wide safe values")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Charles Keepax
Richard Fitzgerald
Linus Torvalds
Vineet Gupta
Andreas Gruenbacher
Stephen Rothwell
Dan Williams
Mark Yao
Ville Syrjälä
Konrad Rzeszutek Wilk
Jisheng Zhang
Arnd Bergmann