| Commit message (Collapse) | Author | Age |
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This patch address several issues in the current BSD Secure Levels code:
o plaintext_to_sha1: Missing check for a NULL return from __get_free_page
o passwd_write_file: A page is leaked if the password is wrong.
o fix securityfs registration order
o seclvl_init is a mess and can't properly tolerate failures, failure
path is upside down (deldif and delf should be switched)
Cleanups:
o plaintext_to_sha1: Use buffers passed in
o passwd_write_file: Use kmalloc() instead of get_zeroed_page()
o passwd_write_file: hashedPassword comparison is just memcmp
o s/ENOSYS/EINVAL/
o misc
(akpm: after some discussion it appears that the BSD secure levels feature
should be scheduled for removal. But for now, let's fix these problems up).
Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Stephen Smalley <sds@epoch.ncsc.mil>
Cc: James Morris <jmorris@namei.org>
Cc: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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free_hba() sets hba[i] to NULL, the dereference afterwards results in this
crash. Setting busy_initializing to 0 actually looks unnecessary, but I'm
not entirely sure, which is why I left it in.
cciss: controller appears to be disabled
Unable to handle kernel NULL pointer dereference at virtual address 00000370
printing eip:
c1114d53
*pde = 00000000
Oops: 0002 [#1]
Modules linked in:
CPU: 0
EIP: 0060:[<c1114d53>] Not tainted VLI
EFLAGS: 00010286 (2.6.16 #1)
EIP is at cciss_init_one+0x4e9/0x4fe
eax: 00000000 ebx: c132cd60 ecx: c13154e4 edx: c27d3c00
esi: 00000000 edi: c2748800 ebp: c2536ee4 esp: c2536eb8
ds: 007b es: 007b ss: 0068
Process swapper (pid: 1, threadinfo=c2536000 task=c2535a30)
Stack: <0>00000000 00000000 00000000 c13fdba0 c2536ee8 c13159c0 c2536f38
f7c74740
c132cd60 c132cd60 ffffffed c2536ef0 c10c1d51 c2748800 c2536f04
c10c1d85
c132cd60 c2748800 c132cd8c c2536f14 c10c1db8 c2748848 00000000
c2536f28
Call Trace:
[<c10031d5>] show_stack_log_lvl+0xa8/0xb0
[<c1003305>] show_registers+0x102/0x16a
[<c10034a2>] die+0xc1/0x13c
[<c1288160>] do_page_fault+0x38a/0x525
[<c1002e9b>] error_code+0x4f/0x54
[<c10c1d51>] pci_call_probe+0xd/0x10
[<c10c1d85>] __pci_device_probe+0x31/0x43
[<c10c1db8>] pci_device_probe+0x21/0x34
[<c110a654>] driver_probe_device+0x44/0x99
[<c110a73f>] __driver_attach+0x39/0x5d
[<c1109e1c>] bus_for_each_dev+0x35/0x5a
[<c110a777>] driver_attach+0x14/0x16
[<c110a220>] bus_add_driver+0x5c/0x8f
[<c110ab22>] driver_register+0x73/0x78
[<c10c1f6d>] __pci_register_driver+0x5f/0x71
[<c13bf935>] cciss_init+0x1a/0x1c
[<c13aa718>] do_initcalls+0x4c/0x96
[<c13aa77e>] do_basic_setup+0x1c/0x1e
[<c10002b1>] init+0x35/0x118
[<c1000cf5>] kernel_thread_helper+0x5/0xb
Code: 04 b5 e0 de 40 c1 8d 50 04 8b 40 34 e8 3f b7 f9 ff 8b 04 b5 e0 de
40 c1 e8 aa f3 ff ff 89 f0 e8 e8 fa ff ff 8b 04 b5 e0 de 40 c1 <c7> 80
70 03 00 00 00 00 00 00 83 c8 ff 8d 65 f4 5b 5e 5f 5d c3
<0>Kernel panic - not syncing: Attempted to kill init!
Signed-off-by: Patrick McHardy <kaber@trash.net>
Cc: <mike.miller@hp.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Both R1BIO_Barrier and R1BIO_Returned are 4 !!!!
This means that barrier requests don't get returned (i.e. b_endio called)
because it looks like they already have been.
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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We have noticed lockups during boot when stress testing kexec on ppc64.
Two cpus would deadlock in scheduler code trying to grab already taken
spinlocks.
The double_rq_lock code uses the address of the runqueue to order the
taking of multiple locks. This address is a per cpu variable:
if (rq1 < rq2) {
spin_lock(&rq1->lock);
spin_lock(&rq2->lock);
} else {
spin_lock(&rq2->lock);
spin_lock(&rq1->lock);
}
On the other hand, the code in wake_sleeping_dependent uses the cpu id
order to grab locks:
for_each_cpu_mask(i, sibling_map)
spin_lock(&cpu_rq(i)->lock);
This means we rely on the address of per cpu data increasing as cpu ids
increase. While this will be true for the generic percpu implementation it
may not be true for arch specific implementations.
One way to solve this is to always take runqueues in cpu id order. To do
this we add a cpu variable to the runqueue and check it in the
double runqueue locking functions.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fix a duplicate block device line printed after the "Block device" header
in /proc/devices.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Merge clash will have broken sparc64. Synch up its online_page
implementation with powerpc, which was identical until the
set_page_count removal.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (78 commits)
[PATCH] powerpc: Add FSL SEC node to documentation
[PATCH] macintosh: tidy-up driver_register() return values
[PATCH] powerpc: tidy-up of_register_driver()/driver_register() return values
[PATCH] powerpc: via-pmu warning fix
[PATCH] macintosh: cleanup the use of i2c headers
[PATCH] powerpc: dont allow old RTC to be selected
[PATCH] powerpc: make powerbook_sleep_grackle static
[PATCH] powerpc: Fix warning in add_memory
[PATCH] powerpc: update mailing list addresses
[PATCH] powerpc: Remove calculation of io hole
[PATCH] powerpc: iseries: Add bootargs to /chosen
[PATCH] powerpc: iseries: Add /system-id, /model and /compatible
[PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCII
[PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.c
[PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt)
[PATCH] powerpc: iseries: mf related cleanups
[PATCH] powerpc: Replace platform_is_lpar() with a firmware feature
[PATCH] powerpc: trivial: Cleanup whitespace in cputable.h
[PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early()
[PATCH] powerpc: Unconfuse htab_bolt_mapping() callers
...
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Documentation: Added FSL SOC SEC node definition
Updated the documentation to include the definition of the SEC device
node format for Freescale SOC devices.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Remove the assumption that driver_register() returns the number of devices
bound to the driver. In fact, it returns zero for success or a negative
error value.
All callers of macio_register_driver() either ignore the return value or
return it as the return value of a module_init() function.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Remove the assumption that driver_register() returns the number of devices
bound to the driver. In fact, it returns zero for success or a negative
error value.
Nobody uses the return value of of_register_driver() anyway.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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drivers/macintosh/via-pmu.c:164: warning: `sleep_in_progress' defined but not used
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Cleanup the use of i2c headers in macintosh drivers.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now powerpc uses the generic RTC stuff we should not enable the old RTC.
Doing so will result in hangs at boot.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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powerbook_sleep_grackle is only called inside via-pmu, from pmu_ioctl()
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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arch/powerpc/mm/mem.c: In function `add_memory':
arch/powerpc/mm/mem.c:128: warning: assignment makes integer from pointer without a cast
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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In mm_init_ppc64() we calculate the location of the "IO hole", but then
no one ever looks at the value. So don't bother.
That's actually all mm_init_ppc64() does, so get rid of it too.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add the command line args to the device tree as /chosen/bootargs.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add /system-id, /model and /compatible to the iSeries device tree.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add strne2a() which converts a string from EBCDIC to ASCII.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Make mf_get_rtc(), mf_get_boot_rtc() and mf_set_rtc() static, cause they can
be. We need to move mf_set_rtc() to avoid a forward declaration.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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These routines just call through to the mf routines, so point ppc_md straight
at the mf routines. We need to pass the cmd through to mf_reboot to make it
work, but that seems reasonable.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Some cleanups in the iSeries code.
- Make mf_display_progress() check mf_initialized rather than the caller.
- Set mf_initialized in mf_init() rather than in setup.c
- Then move mf_initialized into mf.c, the only place it's used.
- Move the mf related logic from iSeries_progress() to mf_display_progress()
- Use a #define to size the pending_event_prealloc array
- Use that define in the initialsation loop rather than sizeof jiggery pokery
- Remove stupid comment(s)
- Mark stuff static and/or __init
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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It has been decreed that platform numbers are evil, so as a step in that
direction, replace platform_is_lpar() with a FW_FEATURE_LPAR bit.
Currently FW_FEATURE_LPAR really means i/pSeries LPAR, in the future we might
have to clean that up if we need to be more specific about what LPAR actually
means. But that's another patch ...
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Remove redundant whitespace in include/asm-powerpc/cputable.h
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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When iommu_init_early_pSeries() was added, ages ago, we forgot to remove
the code that checks /chosen/linux,iommu-off in pSeries_init_early(). We
do it now in iommu_init_early_pSeries().
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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htab_bolt_mapping() takes a vstart and pstart parameter, but all but one of
its callers actually pass it vstart and vstart. Luckily before it passes
paddr (calculated from paddr) to the hpte_insert routines it calls
virt_to_abs() (aka. __pa()) on the address, so there isn't actually a bug.
map_io_page() however does pass pstart properly, so currently it's broken
AFAICT because we're calling __pa(paddr) which will get us something very
large. Presumably no one's calling map_io_page() in the right context.
Anyway, change htab_bolt_mapping() callers to properly pass pstart, and then
use it properly in htab_bolt_mapping(), ie. don't call __pa() on it again.
Booted on p5 LPAR, iSeries and Power3.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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We can plug the boot cpu into its node independently of whether numa
topology is detected. And numa_setup_cpu does the right thing for all
cases now, so remove special-casing for non-numa from the cpu hotplug
callback.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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The powerpc numa code unconditionally onlines all nodes from 0 to the
highest node id found, regardless of whether cpus or memory are
present in the nodes. This wastes 8K per node and complicates some
cpu and memory hotplug situations, such as adding a resource that
doesn't map to one of the nodes discovered at boot.
Set nodes online as resources are scanned. Fall back to node 0 only
when we're sure this isn't a NUMA machine.
Instead of defaulting to node 0 for cases of hot-adding a resource
which doesn't belong to any initialized node, assign it to the first
online node.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Code to handle Power4's invalid node id (0xffff) is duplicated for cpu
and memory. Better to handle this case in one place --
of_node_to_nid. Overall behavior should be unchanged.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Since we effectively treat the domain ids given to us by firmare as
logical node ids, make this explicit (basically s/numa_domain/nid/).
No functional changes, only variable and function names are modified.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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map_cpu_to_node does not need to be inline, it is never called in a
hot path.
map_cpu_to_node, numa_setup_cpu, and find_cpu_node can be marked
__cpuinit, as they are never used after boot if CONFIG_HOTPLUG_CPU=n.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add debug statement for map_cpu_to_node; it's useful for cpu hotplug.
Clarify debug statement about not finding the numa reference points
property.
Don't print a meaningless associativity depth (-1) on non-numa systems.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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At boot, the numa code is assigning boot_cpuid to node 0
unconditionally. Basically, numa_setup_cpu is being stupid about it,
but this is the minimal fix -- just call numa_setup_cpu(boot_cpuid)
later, after all nodes have been set online.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
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git+ssh://galak@master.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
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Add PCI support for setting PCI from flat device tree on 85xx specifically for
MPC8540 ADS.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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My patch (d7a5b2ffa1352f0310630934a56aecbdfb617b72) to always panic if
lmb_alloc() fails is broken because it checks alloc < 0, but should be
checking alloc == 0.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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The spidernet drivers uses request_firmware() and thus needs to select
FW_LOADER.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Needed due to changes in ppc_sys.c.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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While adding USB support to an MV64360 based board this week, I
discovered that all MV64x60 boards in the kernel have platform_notify
functions marked with __init. This causes an oops if a device is added
after boot.
The patch below removes the __init markers. I do not have all these
boards to test on, but the change seems very unlikely to break anything
else.
Signed-off-by: Adrian Cox <adrian@humboldt.co.uk>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Dump a stream of rawbytes with a new 'dr' command.
Produces less output and it is simpler to feed the output to scripts.
Also, dr has no dumpsize limits.
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Typical use for of_find_node_by_name and of_find_node_by_type is to
iterate over all nodes of a given type/name. Add a helper macro to
do that (in spirit of the list_for_each* macros).
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This converts arch/ppc to kzalloc usage.
Crosscompile tested with allyesconfig.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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At present, the powerpc pmd_bad() and pud_bad() macros return false
unless the given pmd or pud is zero. This patch makes these tests
more thorough, checking if the given pmd or pud looks like a plausible
pte page or pmd page pointer respectively. This can result in helpful
error messages when messing with the pagetable code.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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