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Now that we return the new resource start position, there is no
need to update "struct resource" inside the align function.
Therefore, mark the struct resource as const.
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
As suggested by Linus, align functions should return the start
of a resource, not void. An update of "res->start" is no longer
necessary.
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This is a partial revert of commit 3ad2f3fbb961 ("tree-wide: Assorted
spelling fixes") as the change in arch/sparc/kernel/leon_kernel.c has
been already fixed while refactoring the file in the sparc tree.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Thanks to testcase and report from Brad Spengler:
--------------------
#include <stdio.h>
typedef int (* _wee)(void);
int main(void)
{
char buf[8] = { '\x81', '\xc7', '\xe0', '\x08', '\x81', '\xe8',
'\x00', '\x00' };
_wee wee;
printf("%p\n", &buf);
wee = (_wee)&buf;
wee();
return 0;
}
--------------------
TSB I-tlb load code tries to use andcc to check the _PAGE_EXEC_4U bit,
but that's bit 12 so it gets sign extended all the way up to bit 63
and the test nearly always passes as a result.
Use sethi to fix the bug.
Signed-off-by: David S. Miller <davem@davemloft.net>
Mirrors powerpc commits bb209c8287d2d55ec4a67e3933346e0a3ee0da76
("powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge()")
and 26b4a0ca46985ae9586c194f7859f3838b1230f8
("powerpc/pci: Add missing hookup to pci_slot")
We also need to initialize ->dma_mask explicitly here too.
Signed-off-by: David S. Miller <davem@davemloft.net>
Most implementations of arch_syscall_addr() are the same, so create a
default version in common code and move the one piece that differs (the
syscall table) to asm/syscall.h. New arch ports don't have to waste
time copying & pasting this simple function.
The s390/sparc versions need to be different, so document why.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1264498803-17278-1-git-send-email-vapier@gentoo.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Fixes the following build failure:
CC arch/sparc/kernel/sys_sparc32.o
In file included from include/linux/netfilter_ipv4/ip_tables.h:28,
from arch/sparc/kernel/sys_sparc32.c:46:
include/linux/netfilter/x_tables.h:525: error: expected declaration specifiers or ‘...’ before ‘nf_hookfn’
Signed-off-by: David S. Miller <davem@davemloft.net>
Both allnodes and devtree_lock are defined in common code. The
extern declaration should be in the common header too so that the
compiler can type check. allnodes is already in of.h, but
devtree_lock should be declared there too.
This patch removes the SPARC declarations and uses decls in of.h instead.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: David S. Miller <davem@davemloft.net>
The kernel stack pointer is invalid if it is not 16-byte
aligned.
Based upon a report by Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc32: Fix thinko in previous change.
sparc: Align clone and signal stacks to 16 bytes.
This is mandatory for 64-bit processes, and doing it also for 32-bit
processes saves a conditional in the compat case.
This fixes the glibc/nptl/tst-stdio1 test case, as well
as many others, on 64-bit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge common function between powerpc, sparc and microblaze. Code is
identical for powerpc and microblaze, but adds a lock (and release) of
the devtree_lock on sparc.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
In particular, several occurances of funny versions of 'success',
'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
'beginning', 'desirable', 'separate' and 'necessary' are fixed.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Joe Perches <joe@perches.com>
Cc: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Here are the sparc bits to remove TIF_ABI_PENDING now that
set_personality() is called at the appropriate place in exec.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In struct device_node, the phandle is named 'linux_phandle' for PowerPC
and MicroBlaze, and 'node' for SPARC. There is no good reason for the
difference, it is just an artifact of the code diverging over a couple
of years. This patch renames both to simply .phandle.
Note: the .node also existed in PowerPC/MicroBlaze, but the only user
seems to be arch/powerpc/platforms/powermac/pfunc_core.c. It doesn't
look like the assignment between .linux_phandle and .node is
significantly different enough to warrant the separate code paths
unless ibm,phandle properties actually appear in Apple device trees.
I think it is safe to eliminate the old .node property and use
phandle everywhere.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Can't reference irq_desc[].affinity when !SMP.
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As noted by Benjamin Herrenschmidt, the generic IRQ layer
only sets irq_desc[irq].affinity after ->set_affinity()
succeeds.
So we have to use the passed in cpumask.
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the rest of the conflict detection and resolution logic necessary
to support more than one counter at a time on sparc64.
The structure and implementation closely mimicks that of powerpc.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pretty straightforward, and it should be easy to add accurate
walk through of signal stack frames in userspace.
Signed-off-by: David S. Miller <davem@davemloft.net>
Tested-by: Jens Axboe <jens.axboe@oracle.com>
This patch converts sparc (specifically sparc32) to use GENERIC_TIME via
the arch_getoffset() infrastructure, reducing the amount of arch
specific code we need to maintain.
The sparc architecture is one of the last 3 arches that need to be
converted.
This patch applies on top of Linus' current -git tree
I've taken my best swing at converting this, but I'm not 100% confident
I got it right. My cross-compiler is now out of date (gcc4.2) so I
wasn't able to check if it compiled. Any assistance from arch
maintainers or testers to get this merged would be great.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure compiler won't do weird things with limits. E.g. fetching
them twice may return 2 different values after writable limits are
implemented.
I.e. either use rlimit helpers added in
3e10e716abf3c71bdb5d86b8f507f9e72236c9cd
or ACCESS_ONCE if not applicable.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
For chips like Niagara2 that have true overflow indications
in the %pcr (which we don't actually need and don't use)
the interrupt signal persists until the overflow bits are
cleared by an explicit %pcr write.
Signed-off-by: David S. Miller <davem@davemloft.net>
Somehow the local.h was not removed when taking out the local_t usage during
the 2.6.32 merge.
CC: David Miller <davem@davemloft.net>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
If perf events are active, we should not reset the %pcr to
PCR_PIC_PRIV. That perf events code does the management.
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'module' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
modpost: fix segfault with short symbol names
module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y
Kbuild: clear marker out of modpost
module: make MODULE_SYMBOL_PREFIX into a CONFIG option
ARM: unexport symbols used to implement floating point emulation
ARM: use unified discard definition in linker script
x86: don't export inline function
sparc64: don't export static inline pci_ functions
Use bitmap library and kill some unused iommu helper functions.
1. s/iommu_area_free/bitmap_clear/
2. s/iommu_area_reserve/bitmap_set/
3. Use bitmap_find_next_zero_area instead of find_next_zero_area
This cannot be simple substitution because find_next_zero_area
doesn't check the last bit of the limit in bitmap
4. Remove iommu_area_free, iommu_area_reserve, and find_next_zero_area
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
clockevents: Convert to raw_spinlock
clockevents: Make tick_device_lock static
debugobjects: Convert to raw_spinlocks
perf_event: Convert to raw_spinlock
hrtimers: Convert to raw_spinlocks
genirq: Convert irq_desc.lock to raw_spinlock
smp: Convert smplocks to raw_spinlocks
rtmutes: Convert rtmutex.lock to raw_spinlock
sched: Convert pi_lock to raw_spinlock
sched: Convert cpupri lock to raw_spinlock
sched: Convert rt_runtime_lock to raw_spinlock
sched: Convert rq->lock to raw_spinlock
plist: Make plist debugging raw_spinlock aware
bkl: Fixup core_lock fallout
locking: Cleanup the name space completely
locking: Further name space cleanups
alpha: Fix fallout from locking changes
locking: Implement new raw_spinlock
locking: Convert raw_rwlock functions to arch_rwlock
locking: Convert raw_rwlock to arch_rwlock
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix clock event multiplier printf format.
sparc64: Use clock{source,events}_calc_mult_shift().
sparc64: Use free_bootmem_late() in mdesc_lmb_free().
sparc: Add alignment and emulation fault perf events.
sparc64: Add syscall tracepoint support.
sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}()
sparc: Use __builtin_object_size() to validate the buffer size for copy_from_user()
sparc64: Add some missing __kprobes annotations to kernel fault paths.
sparc64: Use kprobes_built_in() to avoid ifdefs in fault_64.c
sparc: Validate that kprobe address is 4-byte aligned.
sparc64: Don't specify IRQF_SHARED for LDC interrupts.
sparc64: Fix stack debugging IRQ stack regression.
sparc64: Fix overly strict range type matching for PCI devices.
Exporting an inline function breaks the new assembler-based alphabetical
sorted symbol list.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)
m68k: rename global variable vmalloc_end to m68k_vmalloc_end
percpu: add missing per_cpu_ptr_to_phys() definition for UP
percpu: Fix kdump failure if booted with percpu_alloc=page
percpu: make misc percpu symbols unique
percpu: make percpu symbols in ia64 unique
percpu: make percpu symbols in powerpc unique
percpu: make percpu symbols in x86 unique
percpu: make percpu symbols in xen unique
percpu: make percpu symbols in cpufreq unique
percpu: make percpu symbols in oprofile unique
percpu: make percpu symbols in tracer unique
percpu: make percpu symbols under kernel/ and mm/ unique
percpu: remove some sparse warnings
percpu: make alloc_percpu() handle array types
vmalloc: fix use of non-existent percpu variable in put_cpu_var()
this_cpu: Use this_cpu_xx in trace_functions_graph.c
this_cpu: Use this_cpu_xx for ftrace
this_cpu: Use this_cpu_xx in nmi handling
this_cpu: Use this_cpu operations in RCU
this_cpu: Use this_cpu ops for VM statistics
...
Fix up trivial (famous last words) global per-cpu naming conflicts in
arch/x86/kvm/svm.c
mm/slab.c
* git://git.kernel.org/pub/scm/linux/kernel/git/viro/mmap:
Add missing alignment check in arch/score sys_mmap()
fix broken aliasing checks for MAP_FIXED on sparc32, mips, arm and sh
Get rid of open-coding in ia64_brk()
sparc_brk() is not needed anymore
switch do_brk() to get_unmapped_area()
Take arch_mmap_check() into get_unmapped_area()
fix a struct file leak in do_mmap_pgoff()
Unify sys_mmap*
Cut hugetlb case early for 32bit on ia64
arch_mmap_check() on mn10300
Kill ancient crap in s390 compat mmap
arm: add arch_mmap_check(), get rid of sys_arm_mremap()
file ->get_unmapped_area() shouldn't duplicate work of get_unmapped_area()
kill useless checks in sparc mremap variants
fix pgoff in "have to relocate" case of mremap()
fix the arch checks in MREMAP_FIXED case
fix checks for expand-in-place mremap
do_mremap() untangling, part 3
do_mremap() untangling, part 2
untangling do_mremap(), part 1
the checks it's doing are duplicated in sys_brk() and failing
them early makes no sense, AFAICT.
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
New helper - sys_mmap_pgoff(); switch syscalls to using it.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
... we should call mm ->get_unmapped_area() instead and let our caller
do the final checks.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
