Jag Raman 6c95483b76 sparc64: ldc abort during vds iso boot ...

Orabug: 20902628

When an ldc control-only packet is received during data exchange in
read_nonraw(), a new rx head is calculated but the rx queue head is not
actually advanced (rx_set_head() is not called) and a branch is taken to
'no_data' at which point two things can happen depending on the value
of the newly calculated rx head and the current rx tail:

- If the rx queue is determined to be not empty, then the wrong packet
  is picked up.

- If the rx queue is determined to be empty, then a read error (EAGAIN)
  is eventually returned since it is falsely assumed that more data was
  expected.

The fix is to update the rx head and return in case of a control only
packet during data exchange.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Aaron Young <aaron.young@oracle.com>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Reviewed-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2017-06-10 14:10:55 -07:00

..

.gitignore

…

apc.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

asm-offsets.c

sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>

2017-03-02 08:42:37 +01:00

audit.c

sparc: Convert naked unsigned uses to unsigned int

2016-03-20 21:28:58 -07:00

auxio_32.c

sparc32: fix sparse warning in auxio_32.c

2014-05-18 19:01:27 -07:00

auxio_64.c

sparc: kernel: drop owner assignment from platform_drivers

2014-10-20 16:20:15 +02:00

btext.c

sparc64: fix sparse warning in btext.c

2014-05-18 19:01:30 -07:00

central.c

sparc: kernel: drop owner assignment from platform_drivers

2014-10-20 16:20:15 +02:00

cherrs.S

sparc64: Fix bootup regressions on some Kconfig combinations.

2016-04-27 17:27:37 -04:00

chmc.c

sparc: kernel: drop owner assignment from platform_drivers

2014-10-20 16:20:15 +02:00

compat_audit.c

sparc: Convert naked unsigned uses to unsigned int

2016-03-20 21:28:58 -07:00

cpu.c

sparc64: recognize and support Sonoma CPU type

2016-04-21 16:43:47 -04:00

cpumap.c

sparc64: recognize and support Sonoma CPU type

2016-04-21 16:43:47 -04:00

cpumap.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

devices.c

sparc32: drop tadpole specific code

2014-05-18 19:01:29 -07:00

dma.c

sparc: remove several unnecessary module.h include instances

2011-10-31 19:30:54 -04:00

ds.c

sparc64: Fix build warnings with gcc 7.

2017-06-01 09:42:46 -07:00

dtlb_miss.S

…

dtlb_prot.S

sparc: Don't leak context bits into thread->fault_address

2016-07-27 17:50:26 -07:00

ebus.c

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

entry.h

sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE

2015-05-31 22:15:01 -07:00

entry.S

sparc: move exports to definitions

2016-08-07 23:55:43 -04:00

etrap_32.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00

etrap_64.S

sparc64: clear syscall_noerror on the entry to syscall, not on the exit

2012-10-14 19:26:52 -04:00

fpu_traps.S

sparc64: Fix bootup regressions on some Kconfig combinations.

2016-04-27 17:27:37 -04:00

ftrace.c

sparc/ftrace: Fix ftrace graph time measurement

2017-05-17 12:07:47 -07:00

getsetcc.S

…

head_32.S

sparc32: kill __ret_efault()

2017-03-28 18:24:00 -04:00

head_64.S

sparc64: fix fault handling in NGbzero.S and GENbzero.S

2017-05-09 12:16:25 -07:00

helpers.S

sparc: move exports to definitions

2016-08-07 23:55:43 -04:00

hvapi.c

sparc64: Add ATU (new IOMMU) support

2016-11-18 11:16:59 -08:00

hvcalls.S

sparc: move exports to definitions

2016-08-07 23:55:43 -04:00

hvtramp.S

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

idprom.c

net: Add eth_platform_get_mac_address() helper.

2016-01-06 16:31:56 -05:00

iommu_common.h

sparc: drop duplicate header scatterlist.h

2016-11-19 10:43:07 -05:00

iommu.c

treewide: Constify most dma_map_ops structures

2017-01-24 12:23:35 -05:00

ioport.c

treewide: Constify most dma_map_ops structures

2017-01-24 12:23:35 -05:00

irq_32.c

sparc32: off by ones in BUG_ON()

2016-07-27 22:53:17 -07:00

irq_64.c

arch/sparc: support NR_CPUS = 4096

2017-06-06 16:41:47 -04:00

irq.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

itlb_miss.S

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ivec.S

…

jump_label.c

sparc: Handle negative offsets in arch_jump_label_transform

2016-10-25 19:11:17 -07:00

kernel.h

sparc64: delete old wrap code

2017-06-06 13:45:29 -07:00

kgdb_32.c

sparc32: use proper prototype for trapbase

2016-05-20 17:55:41 -07:00

kgdb_64.c

sparc64: fix sparse warning in kgdb_64.c

2014-05-18 19:01:34 -07:00

kprobes.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

kstack.h

sparc64: Run NMIs on the hardirq stack.

2010-04-14 02:04:29 -07:00

ktlb.S

sparc: Don't leak context bits into thread->fault_address

2016-07-27 17:50:26 -07:00

ldc.c

sparc64: ldc abort during vds iso boot

2017-06-10 14:10:55 -07:00

led.c

sparc: use memdup_user_nul in sun4m LED driver

2017-05-09 12:16:25 -07:00

leon_kernel.c

sparc: leon: Fix a retry loop in leon_init_timers()

2016-12-11 18:15:49 -08:00

leon_pci_grpci1.c

genirq: Remove irq argument from irq flow handlers

2015-09-16 15:47:51 +02:00

leon_pci_grpci2.c

genirq: Remove irq argument from irq flow handlers

2015-09-16 15:47:51 +02:00

leon_pci.c

PCI: Cleanup control flow

2015-03-19 10:17:22 -05:00

leon_pmc.c

sparc32: fix sparse warnings in leon_pmc.c

2014-04-29 01:12:27 -04:00

leon_smp.c

sched/headers: Move task->mm handling methods to <linux/sched/mm.h>

2017-03-03 01:43:28 +01:00

Makefile

sparc64:Support User Probes for sparc

2016-12-11 18:01:51 -08:00

mdesc.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

misctrap.S

arch/sparc: Avoid DCTI Couples

2017-03-27 21:51:40 -07:00

module.c

mm: vmalloc: pass additional vm_flags to __vmalloc_node_range()

2015-02-13 21:21:42 -08:00

nmi.c

sparc: implement watchdog_nmi_enable and watchdog_nmi_disable

2016-12-14 16:04:08 -08:00

of_device_32.c

sparc32: rename sparc_irq_config to sparc_config

2012-04-15 10:28:49 -07:00

of_device_64.c

devicetree: add helper inline for retrieving a node's full name

2012-07-06 07:16:34 -05:00

of_device_common.c

sparc: fix sparse warnings in of_device_common.c

2014-04-29 01:12:27 -04:00

of_device_common.h

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pci_common.c

sparc/PCI: Add mem64 resource parsing for root bus

2015-10-29 17:35:46 -05:00

pci_fire.c

sparc: kernel: drop owner assignment from platform_drivers

2014-10-20 16:20:15 +02:00

pci_impl.h

sparc/PCI: Add mem64 resource parsing for root bus

2015-10-29 17:35:46 -05:00

pci_msi.c

PCI/MSI: Rename mask/unmask_msi_irq treewide

2014-11-23 13:01:45 +01:00

pci_psycho.c

sparc: kernel: drop owner assignment from platform_drivers

2014-10-20 16:20:15 +02:00

pci_sabre.c

sparc: kernel: drop owner assignment from platform_drivers

2014-10-20 16:20:15 +02:00

pci_schizo.c

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2014-12-14 16:10:09 -08:00

pci_sun4v_asm.S

sparc64: Enable sun4v dma ops to use IOMMU v2 APIs

2016-11-18 11:17:00 -08:00

pci_sun4v.c

treewide: Constify most dma_map_ops structures

2017-01-24 12:23:35 -05:00

pci_sun4v.h

sparc64: Enable sun4v dma ops to use IOMMU v2 APIs

2016-11-18 11:17:00 -08:00

pci.c

PCI: Add BAR index argument to pci_mmap_page_range()

2017-04-20 08:47:47 -05:00

pcic.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

pcr.c

sparc: perf: Add support M7 processor

2015-03-19 18:54:49 -07:00

perf_event.c

perf core: Add a 'nr' field to perf_event_callchain_context

2016-05-16 23:11:51 -03:00

pmc.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

power.c

sparc: kernel: use builtin_platform_driver

2016-12-11 18:15:48 -08:00

process_32.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

process_64.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

prom_32.c

sparc: remove several unnecessary module.h include instances

2011-10-31 19:30:54 -04:00

prom_64.c

sparc64: fix sparse warning in prom_64.c

2014-05-18 19:01:31 -07:00

prom_common.c

of: Fix locking vs. interrupts

2013-06-13 22:12:14 +01:00

prom_irqtrans.c

sparc: Remove unnecessary semicolons

2011-06-07 16:06:34 -07:00

prom.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

psycho_common.c

sparc: Remove unnecessary semicolons

2011-06-07 16:06:34 -07:00

psycho_common.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

ptrace_32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ptrace_64.c

sparc64: Fill in rest of HAVE_REGS_AND_STACK_ACCESS_API

2017-04-23 17:15:51 -07:00

reboot.c

Disintegrate asm/system.h for Sparc

2012-03-28 18:30:03 +01:00

rtrap_32.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00

rtrap_64.S

arch/sparc: Avoid DCTI Couples

2017-03-27 21:51:40 -07:00

sbus.c

sparc: kernel/sbus.c: fix memory leakage

2013-01-21 14:33:00 -08:00

setup_32.c

sparc: Remove redundant tests in boot_flags_init().

2017-05-03 08:28:48 -07:00

setup_64.c

sparc: Remove redundant tests in boot_flags_init().

2017-05-03 08:28:48 -07:00

signal32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signal_32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signal_64.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

sigutil_32.c

sparc: Harden signal return frame checks.

2016-05-29 11:24:05 -07:00

sigutil_64.c

sparc: Harden signal return frame checks.

2016-05-29 11:24:05 -07:00

sigutil.h

sparc: Allow handling signals when stack is corrupted.

2011-08-20 17:14:54 -07:00

smp_32.c

cpu/hotplug: Remove CPU_STARTING and CPU_DYING notifier

2016-09-06 18:30:19 +02:00

smp_64.c

sparc64: delete old wrap code

2017-06-06 13:45:29 -07:00

sparc_ksyms.c

sparc: move exports to definitions

2016-08-07 23:55:43 -04:00

spiterrs.S

arch/sparc: Avoid DCTI Couples

2017-03-27 21:51:40 -07:00

sstate.c

sparc: Fixed typo in sstate.c. Replaced panicing with panicking

2017-01-16 22:31:51 -05:00

stacktrace.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

starfire.c

arch: sparc: kernel: starfire.c: Remove unused function

2015-03-01 21:33:58 -08:00

sun4d_irq.c

sparc/irq: Use helper irq_data_get_irq_handler_data()

2015-07-31 22:20:05 +02:00

sun4d_smp.c

sched/headers: Move task->mm handling methods to <linux/sched/mm.h>

2017-03-03 01:43:28 +01:00

sun4m_irq.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

sun4m_smp.c

sched/headers: Move task->mm handling methods to <linux/sched/mm.h>

2017-03-03 01:43:28 +01:00

sun4v_ivec.S

…

sun4v_tlb_miss.S

arch/sparc: Avoid DCTI Couples

2017-03-27 21:51:40 -07:00

sys32.S

sparc: Hook up renameat2 syscall.

2014-07-21 22:27:56 -07:00

sys_sparc32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

sys_sparc_32.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

sys_sparc_64.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

syscalls.S

sparc: Fix system call tracing register handling.

2016-01-21 16:06:00 -08:00

sysfs.c

sparc/sysfs: Replace racy task affinity logic

2017-04-15 12:20:54 +02:00

systbls_32.S

sparc: Update syscall tables.

2017-04-23 18:28:55 -07:00

systbls_64.S

sparc: Update syscall tables.

2017-04-23 18:28:55 -07:00

systbls.h

sparc64: fix sparse warnings in sys_sparc32.c

2014-05-18 19:01:31 -07:00

time_32.c

sparc/time: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:11 -07:00

time_64.c

sparc/time: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:11 -07:00

trampoline_32.S

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

trampoline_64.S

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

traps_32.c

sched/headers: Move task->mm handling methods to <linux/sched/mm.h>

2017-03-03 01:43:28 +01:00

traps_64.c

sched/headers: Move task->mm handling methods to <linux/sched/mm.h>

2017-03-03 01:43:28 +01:00

tsb.S

sparc64: mm: fix copy_tsb to correctly copy huge page TSBs

2017-06-06 13:45:02 -07:00

ttable_32.S

sparc32: move trap table to a separate file

2012-05-19 23:27:25 -07:00

ttable_64.S

sparc64: delete old wrap code

2017-06-06 13:45:29 -07:00

una_asm_32.S

sparc32: unaligned memory access (MNA) trap handler bug

2011-02-01 12:39:59 -08:00

una_asm_64.S

sparc: Fix .size directive for do_int_load

2011-03-16 18:19:15 -07:00

unaligned_32.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>

2017-03-02 08:42:29 +01:00

unaligned_64.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

uprobes.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

urtt_fill.S

arch/sparc: Avoid DCTI Couples

2017-03-27 21:51:40 -07:00

utrap.S

sparc64: Fix bootup regressions on some Kconfig combinations.

2016-04-27 17:27:37 -04:00

vio.c

sparc: Machine description indices can vary

2017-06-06 13:45:03 -07:00

viohs.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>

2017-03-02 08:42:27 +01:00

visemul.c

scripts/spelling.txt: add "partiton" pattern and fix typo instances

2017-02-27 18:43:46 -08:00

vmlinux.lds.S

nmi_backtrace: generate one-line reports for idle cpus

2016-10-07 18:46:30 -07:00

windows.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

winfixup.S

arch/sparc: Avoid DCTI Couples

2017-03-27 21:51:40 -07:00

wof.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00

wuf.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00