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2014-09-30sunvnet: allow admin to set sunvnet MTUDavid L Stevens
This patch allows an admin to set the MTU on a sunvnet device to arbitrary values between the minimum (68) and maximum (65535) IPv4 packet sizes. Signed-off-by: David L Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-30sunvnet: upgrade to VIO protocol version 1.6David L Stevens
This patch upgrades the sunvnet driver to support VIO protocol version 1.6. In particular, it adds per-port MTU negotiation, allowing MTUs other than ETH_FRAMELEN with ports using newer VIO protocol versions. Signed-off-by: David L Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13sparc: Hook up memfd_create system call.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13sparc64: Properly claim resources as each PCI bus is probed.David S. Miller
Perform a pci_claim_resource() on all valid resources discovered during the OF device tree scan. Based almost entirely upon the PCI OF bus probing code which does the same thing there. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13sparc64: Skip bogus PCI bridge ranges.David S. Miller
It seems that when a PCI Express bridge is not in use and has no devices behind it, the ranges property is bogus. Specifically the size property is of the form [0xffffffff:...], and if you add this size to the resource start address the 64-bit calculation will overflow. Just check specifically for this size value signature and skip them. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13sparc64: Expand PCI bridge probing debug logging.David S. Miller
Dump the various aspects of the PCI bridge probed at boot time, most importantly the bridge number ranges, and the ranges property. This helps diagnose PCI resource issues and other problems by giving ofpci_debug=1 on the boot command line. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-11sparc64: Fix pcr_ops initialization and usage bugs.David S. Miller
Christopher reports that perf_event_print_debug() can crash in uniprocessor builds. The crash is due to pcr_ops being NULL. This happens because pcr_arch_init() is only invoked by smp_cpus_done() which only executes in SMP builds. init_hw_perf_events() is closely intertwined with pcr_ops being setup properly, therefore: 1) Call pcr_arch_init() early on from init_hw_perf_events(), instead of from smp_cpus_done(). 2) Do not hook up a PMU type if pcr_ops is NULL after pcr_arch_init(). 3) Move init_hw_perf_events to a later initcall so that it we will be sure to invoke pcr_arch_init() after all cpus are brought up. Finally, guard the one naked sequence of pcr_ops dereferences in __global_pmu_self() with an appropriate NULL check. Reported-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-11sparc64: Do not disable interrupts in nmi_cpu_busy()David S. Miller
nmi_cpu_busy() is a SMP function call that just makes sure that all of the cpus are spinning using cpu cycles while the NMI test runs. It does not need to disable IRQs because we just care about NMIs executing which will even with 'normal' IRQs disabled. It is not legal to enable hard IRQs in a SMP cross call, in fact this bug triggers the BUG check in irq_work_run_list(): BUG_ON(!irqs_disabled()); Because now irq_work_run() is invoked from the tail of generic_smp_call_function_single_interrupt(). Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-06sparc: Hook up seccomp and getrandom system calls.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-06sparc: fix decimal printf format specifiers prefixed with 0xHans Wennborg
The prefix suggests the number should be printed in hex, so use the %x specifier to do that. Found by using regex suggested by Joe Perches. Signed-off-by: Hans Wennborg <hans@hanshq.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcDavid S. Miller
Conflicts: arch/sparc/mm/init_64.c Conflict was simple non-overlapping additions. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-04sparc64: ldc_connect() should not return EINVAL when handshake is in progress.Sowmini Varadhan
The LDC handshake could have been asynchronously triggered after ldc_bind() enables the ldc_rx() receive interrupt-handler (and thus intercepts incoming control packets) and before vio_port_up() calls ldc_connect(). If that is the case, ldc_connect() should return 0 and let the state-machine progress. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Karl Volz <karl.volz@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-21sparc: Hook up renameat2 syscall.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-21sparc: Add support for seek and shorter read to /dev/mdescKhalid Aziz
/dev/mdesc on Linux does not support reading arbitrary number of bytes and seeking while /dev/mdesc on Solaris does. This causes tools that work on Solaris to break on Linux. This patch adds these two capabilities to /dev/mdesc. Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-21sparc: use %s for unaligned panicKees Cook
Since unaligned_panic() takes a literal string, make sure it can never accidentally be used as a format string. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-23nmi: provide the option to issue an NMI back trace to every cpu but currentAaron Tomlin
Sometimes it is preferred not to use the trigger_all_cpu_backtrace() routine when one wants to avoid capturing a back trace for current. For instance if one was previously captured recently. This patch provides a new routine namely trigger_allbutself_cpu_backtrace() which offers the flexibility to issue an NMI to every cpu but current and capture a back trace accordingly. Patch x86 and sparc to support new routine. [dzickus@redhat.com: add stub in #else clause] [dzickus@redhat.com: don't print message in single processor case, wrap with get/put_cpu based on Oleg's suggestion] [sfr@canb.auug.org.au: undo C99ism] Signed-off-by: Aaron Tomlin <atomlin@redhat.com> Signed-off-by: Don Zickus <dzickus@redhat.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Mateusz Guzik <mguzik@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-nextLinus Torvalds
Pull sparc fixes from David Miller: "Sparc sparse fixes from Sam Ravnborg" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (67 commits) sparc64: fix sparse warnings in int_64.c sparc64: fix sparse warning in ftrace.c sparc64: fix sparse warning in kprobes.c sparc64: fix sparse warning in kgdb_64.c sparc64: fix sparse warnings in compat_audit.c sparc64: fix sparse warnings in init_64.c sparc64: fix sparse warnings in aes_glue.c sparc: fix sparse warnings in smp_32.c + smp_64.c sparc64: fix sparse warnings in perf_event.c sparc64: fix sparse warnings in kprobes.c sparc64: fix sparse warning in tsb.c sparc64: clean up compat_sigset_t.seta handling sparc64: fix sparse "Should it be static?" warnings in signal32.c sparc64: fix sparse warnings in sys_sparc32.c sparc64: fix sparse warning in pci.c sparc64: fix sparse warnings in smp_64.c sparc64: fix sparse warning in prom_64.c sparc64: fix sparse warning in btext.c sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.c sparc64: fix sparse warning in process_64.c ... Conflicts: arch/sparc/include/asm/pgtable_64.h
2014-06-02Merge tag 'pci-v3.16-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into next Pull PCI changes from Bjorn Helgaas: "Enumeration - Notify driver before and after device reset (Keith Busch) - Use reset notification in NVMe (Keith Busch) NUMA - Warn if we have to guess host bridge node information (Myron Stowe) - Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee Suthikulpanit) - Clean up and mark early_root_info_init() as deprecated (Suravee Suthikulpanit) Driver binding - Add "driver_override" for force specific binding (Alex Williamson) - Fail "new_id" addition for devices we already know about (Bandan Das) Resource management - Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox) - Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas) - Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas) - Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas) - Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas) - Don't convert BAR address to resource if dma_addr_t is too small (Bjorn Helgaas) - Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas) - Don't print anything while decoding is disabled (Bjorn Helgaas) - Don't add disabled subtractive decode bus resources (Bjorn Helgaas) - Add resource allocation comments (Bjorn Helgaas) - Restrict 64-bit prefetchable bridge windows to 64-bit resources (Yinghai Lu) - Assign i82875p_edac PCI resources before adding device (Yinghai Lu) PCI device hotplug - Remove unnecessary "dev->bus" test (Bjorn Helgaas) - Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas) - Fix rphahp endianess issues (Laurent Dufour) - Acknowledge spurious "cmd completed" event (Rajat Jain) - Allow hotplug service drivers to operate in polling mode (Rajat Jain) - Fix cpqphp possible NULL dereference (Rickard Strandqvist) MSI - Replace pci_enable_msi_block() by pci_enable_msi_exact() (Alexander Gordeev) - Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev) - Simplify populate_msi_sysfs() (Jan Beulich) Virtualization - Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson) - Mark RTL8110SC INTx masking as broken (Alex Williamson) Generic host bridge driver - Add generic PCI host controller driver (Will Deacon) Freescale i.MX6 - Use new clock names (Lucas Stach) - Drop old IRQ mapping (Lucas Stach) - Remove optional (and unused) IRQs (Lucas Stach) - Add support for MSI (Lucas Stach) - Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat) Renesas R-Car - Add gen2 device tree support (Ben Dooks) - Use new OF interrupt mapping when possible (Lucas Stach) - Add PCIe driver (Phil Edworthy) - Add PCIe MSI support (Phil Edworthy) - Add PCIe device tree bindings (Phil Edworthy) Samsung Exynos - Remove unnecessary OOM messages (Jingoo Han) - Fix add_pcie_port() section mismatch warning (Sachin Kamat) Synopsys DesignWare - Make MSI ISR shared IRQ aware (Lucas Stach) Miscellaneous - Check for broken config space aliasing (Alex Williamson) - Update email address (Ben Hutchings) - Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas) - Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas) - Remove unnecessary __ref annotations (Bjorn Helgaas) - Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns (Bjorn Helgaas) - Fix use of uninitialized MPS value (Bjorn Helgaas) - Tidy x86/gart messages (Bjorn Helgaas) - Fix return value from pci_user_{read,write}_config_*() (Gavin Shan) - Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo) - Remove unused serial device IDs (Jean Delvare) - Use designated initialization in PCI_VDEVICE (Mark Rustad) - Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu) - Configure MPS on ARM (Murali Karicheri) - Remove unnecessary includes of <linux/init.h> (Paul Gortmaker) - Move Open Firmware devspec attribute to PCI common code (Sebastian Ott) - Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott) - Remove pcibios_add_platform_entries() (Sebastian Ott) - Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch) - Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang) - Add and use new pci_is_bridge() interface (Yijing Wang) - Make pci_bus_add_device() void (Yijing Wang) DMA API - Clarify physical/bus address distinction in docs (Bjorn Helgaas) - Fix typos in docs (Emilio López) - Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim) - Change dma_declare_coherent_memory() CPU address to phys_addr_t (Bjorn Helgaas) - Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory() (Bjorn Helgaas)" * tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits) MAINTAINERS: Add generic PCI host controller driver PCI: generic: Add generic PCI host controller driver PCI: imx6: Add support for MSI PCI: designware: Make MSI ISR shared IRQ aware PCI: imx6: Remove optional (and unused) IRQs PCI: imx6: Drop old IRQ mapping PCI: imx6: Use new clock names i82875p_edac: Assign PCI resources before adding device ARM/PCI: Call pcie_bus_configure_settings() to set MPS PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning PCI: Make pci_bus_add_device() void PCI: exynos: Fix add_pcie_port() section mismatch warning PCI: Introduce new device binding path using pci_dev.driver_override PCI: rcar: Add gen2 device tree support PCI: cpqphp: Fix possible null pointer dereference PCI: rcar: Add R-Car PCIe device tree bindings PCI: rcar: Add MSI support for PCIe PCI: rcar: Add Renesas R-Car PCIe driver PCI: Fix return value from pci_user_{read,write}_config_*() PCI: exynos: Remove unnecessary OOM messages ...
2014-05-27sparc/PCI: Use pci_is_bridge() to simplify codeYijing Wang
Use pci_is_bridge() to simplify code. No functional change. Requires: 326c1cdae741 PCI: Rename pci_is_bridge() to pci_has_subordinate() Requires: 1c86438c9423 PCI: Add new pci_is_bridge() interface Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: David S. Miller <davem@davemloft.net>
2014-05-21sparc64: fix format string mismatch in arch/sparc/kernel/sysfs.cToralf Förster
found by cppcheck Signed-off-by: Toralf Förster <toralf.foerster@gmx.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warning in kgdb_64.cSam Ravnborg
Fix following warnings: kgdb_64.c:114:18: warning: symbol 'smp_kgdb_capture_client' was not declared. Should it be static? kgdb_64.c:161:17: warning: symbol 'kgdb_trap' was not declared. Should it be static? Add proper prototypes Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in compat_audit.cSam Ravnborg
Fix following warnings: compat_audit.c:4:10: warning: symbol 'sparc32_dir_class' was not declared. Should it be static? compat_audit.c:9:10: warning: symbol 'sparc32_chattr_class' was not declared. Should it be static? compat_audit.c:14:10: warning: symbol 'sparc32_write_class' was not declared. Should it be static? compat_audit.c:19:10: warning: symbol 'sparc32_read_class' was not declared. Should it be static? compat_audit.c:24:10: warning: symbol 'sparc32_signal_class' was not declared. Should it be static? compat_audit.c:29:5: warning: symbol 'sparc32_classify_syscall' was not declared. Should it be static? Add declarations to kernel.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in init_64.cSam Ravnborg
Fix following warnings: init_64.c:191:10: warning: symbol 'dcpage_flushes' was not declared. Should it be static? init_64.c:193:10: warning: symbol 'dcpage_flushes_xcall' was not declared. Should it be static? Add extern declaration to asm/setup.h and drop local declaration in smp_64.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc: fix sparse warnings in smp_32.c + smp_64.cSam Ravnborg
Fix following warnings: smp_32.c:177:5: warning: symbol 'setup_profiling_timer' was not declared. Should it be static? smp_64.c:1202:5: warning: symbol 'setup_profiling_timer' was not declared. Should it be static? smp_64.c:989:6: warning: symbol 'kgdb_roundup_cpus' was not declared. Should it be static? Add prototype to include/linux/profile.h of setup_profiling_timer Add missing include to smp_64.c Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in perf_event.cSam Ravnborg
Fix following sparse warnings: kernel/perf_event.c:113:1: warning: symbol 'cpu_hw_events' was not declared. Should it be static? kernel/perf_event.c:1156:6: warning: symbol 'perf_event_grab_pmc' was not declared. Should it be static? kernel/perf_event.c:1172:6: warning: symbol 'perf_event_release_pmc' was not declared. Should it be static? kernel/perf_event.c:1672:12: warning: symbol 'init_hw_perf_events' was not declared. Should it be static? kernel/perf_event.c:1749:52: warning: incorrect type in argument 2 (different address spaces) kernel/perf_event.c:1772:60: warning: incorrect type in argument 2 (different address spaces) kernel/perf_event.c:1779:60: warning: incorrect type in argument 2 (different address spaces) Define the functions static as they are not used outside this file. Fix it so copy_from_user are supplied with pointers annotated _user Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in kprobes.cSam Ravnborg
Fix following warnings: kprobes.c:515:15: warning: symbol 'trampoline_probe_handler' was not declared. Should it be static? kprobes.c:579:6: warning: symbol 'kretprobe_trampoline_holder' was not declared. Should it be static? Declare the functions static. kretprobe_trampoline_holder is magically used without any real reference so mark is __used, like other arch's do too. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: clean up compat_sigset_t.seta handlingSam Ravnborg
Use compat_sigset_t rather than opencode the array Drop "switch (_NSIG_WORDS)" as we know this is always 1 Introduce BUILD_BUG_ON() to catch if this changes As a side-effect of this fix following sparse warnings: signal32.c:220:60: warning: invalid access past the end of 'seta' (12 8) signal32.c:220:42: warning: invalid access past the end of 'seta' (8 8) signal32.c:219:60: warning: invalid access past the end of 'seta' (20 8) signal32.c:219:42: warning: invalid access past the end of 'seta' (16 8) signal32.c:218:60: warning: invalid access past the end of 'seta' (28 8) signal32.c:218:42: warning: invalid access past the end of 'seta' (24 8) signal32.c:309:68: warning: invalid access past the end of 'seta' (12 8) signal32.c:309:46: warning: invalid access past the end of 'seta' (8 8) signal32.c:308:68: warning: invalid access past the end of 'seta' (20 8) signal32.c:308:46: warning: invalid access past the end of 'seta' (16 8) signal32.c:307:68: warning: invalid access past the end of 'seta' (28 8) signal32.c:307:46: warning: invalid access past the end of 'seta' (24 8) They all pointed to code that was never executed - so no bugs fixed. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse "Should it be static?" warnings in signal32.cSam Ravnborg
Fix following warnings: signal32.c:140:6: warning: symbol 'do_sigreturn32' was not declared. Should it be static? signal32.c:230:17: warning: symbol 'do_rt_sigreturn32' was not declared. Should it be static? signal32.c:729:6: warning: symbol 'do_signal32' was not declared. Should it be static? signal32.c:773:16: warning: symbol 'do_sys32_sigstack' was not declared. Should it be static? Add proper prototypes and drop local prototype Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in sys_sparc32.cSam Ravnborg
Fix following warnings: sys_sparc32.c:52:17: warning: symbol 'sys32_truncate64' was not declared. Should it be static? sys_sparc32.c:60:17: warning: symbol 'sys32_ftruncate64' was not declared. Should it be static? sys_sparc32.c:98:17: warning: symbol 'compat_sys_stat64' was not declared. Should it be static? sys_sparc32.c:109:17: warning: symbol 'compat_sys_lstat64' was not declared. Should it be static? sys_sparc32.c:120:17: warning: symbol 'compat_sys_fstat64' was not declared. Should it be static? sys_sparc32.c:131:17: warning: symbol 'compat_sys_fstatat64' was not declared. Should it be static? sys_sparc32.c:196:27: warning: symbol 'sys32_pread64' was not declared. Should it be static? sys_sparc32.c:205:27: warning: symbol 'sys32_pwrite64' was not declared. Should it be static? sys_sparc32.c:214:17: warning: symbol 'compat_sys_readahead' was not declared. Should it be static? sys_sparc32.c:222:6: warning: symbol 'compat_sys_fadvise64' was not declared. Should it be static? sys_sparc32.c:230:6: warning: symbol 'compat_sys_fadvise64_64' was not declared. Should it be static? sys_sparc32.c:241:6: warning: symbol 'sys32_sync_file_range' was not declared. Should it be static? sys_sparc32.c:249:17: warning: symbol 'compat_sys_fallocate' was not declared. Should it be static? Add proper prototypes in systbls.h Include linux/compat.h to get access to necessary types Use inverse christmas tree order in includes Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warning in pci.cSam Ravnborg
Fix following warning: pci.c:886:5: warning: symbol 'pci64_dma_supported' was not declared. Should it be static? Add proper prototype in kernel.h and delete local prototype in iommu.c Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in smp_64.cSam Ravnborg
Fix following warnings: smp_64.c:88:6: warning: symbol 'smp_callin' was not declared. Should it be static? smp_64.c:133:6: warning: symbol 'cpu_panic' was not declared. Should it be static? smp_64.c:187:6: warning: symbol 'smp_synchronize_tick_client' was not declared. Should it be static? smp_64.c:821:18: warning: symbol 'smp_call_function_client' was not declared. Should it be static? smp_64.c:827:18: warning: symbol 'smp_call_function_single_client' was not declared. Should it be static? smp_64.c:964:18: warning: symbol 'smp_new_mmu_context_version_client' was not declared. Should it be static? smp_64.c:1149:6: warning: symbol 'smp_capture' was not declared. Should it be static? smp_64.c:1171:6: warning: symbol 'smp_release' was not declared. Should it be static? smp_64.c:1190:18: warning: symbol 'smp_penguin_jailcell' was not declared. Should it be static? smp_64.c:1410:18: warning: symbol 'smp_receive_signal_client' was not declared. Should it be static? Add prototypes in kernel.h or asm/smp_64.h as appropriate. Delete duplicate function kimage_addr_to_ra(), and adapt parameter to const void * to match the broader use. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warning in prom_64.cSam Ravnborg
Fix following warning: prom_64.c:376:6: warning: symbol 'arch_find_n_match_cpu_physical_id' was not declared. Should it be static? Add missing include to pick up prototype. Rearrange includes to use the inverse christmas tree structure. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warning in btext.cSam Ravnborg
Fix following warning: btext.c:140:6: warning: symbol 'btext_drawchar' was not declared. Should it be static? Define the function static as it is only used in this file. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.cSam Ravnborg
Fix following warnings: kernel/sys_sparc_64.c:643:17: warning: symbol 'sys_kern_features' was not declared. Should it be static? kernel/unaligned_64.c:297:17: warning: symbol 'kernel_unaligned_trap' was not declared. Should it be static? kernel/unaligned_64.c:387:5: warning: symbol 'handle_popc' was not declared. Should it be static? kernel/unaligned_64.c:428:5: warning: symbol 'handle_ldf_stq' was not declared. Should it be static? kernel/unaligned_64.c:553:6: warning: symbol 'handle_ld_nf' was not declared. Should it be static? kernel/unaligned_64.c:579:6: warning: symbol 'handle_lddfmna' was not declared. Should it be static? kernel/unaligned_64.c:643:6: warning: symbol 'handle_stdfmna' was not declared. Should it be static? Functions that are only used in kernel/ - add prototypes in kernel.h Functions used outside kernel/ - add prototype in asm/setup.h Removed local prototypes One of the local prototypes had wrong signature (return void - not int). Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warning in process_64.cSam Ravnborg
Fix following warning: process_64.c:91:25: warning: non-ANSI function declaration of function 'arch_cpu_idle_dead' Add proper (void) to function definition Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc64: fix sparse warning in traps_64.cSam Ravnborg
Fix following warning: traps_64.c:2384:6: error: symbol 'die_if_kernel' redeclared with different type (originally declared at include/asm/bug.h:23) - different modifiers Add proper __noreturn to the implementation to fix this Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc: drop use of extern for prototypes in arch/sparc/*Sam Ravnborg
Drop the remaining uses of extern for prototypes in .h files in the sparc specific part of the kernel tree. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc32: drop tadpole specific codeSam Ravnborg
tadpole.c assigned cpu_pwr_save based on the current configuration. The rest of the tadpole.c file was only used if cpu_pwr_save was dereferenced. But this variable was never dereferenced - and I went back to a 2.6.12 kernel to check (from June 2005) - and not even then was it used. Drop this code as it has not been in use for ~10 years. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc: fix sparse warning in math_{32,64}Sam Ravnborg
Fix following sparse warning: math_{32,64}.c: warning: symbol 'do_mathemu' was not declared. Should it be static? Add prototype in processor_{32,64} and drop extern in traps_{32,64}.c Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc32: fix sparse warnings in sys_sparc_32.cSam Ravnborg
Fix following warnings: sys_sparc_32.c:32:26: warning: symbol 'sys_getpagesize' was not declared. Should it be static? sys_sparc_32.c:71:16: warning: symbol 'sparc_pipe' was not declared. Should it be static? sys_sparc_32.c:96:26: warning: symbol 'sys_mmap2' was not declared. Should it be static? sys_sparc_32.c:106:26: warning: symbol 'sys_mmap' was not declared. Should it be static? sys_sparc_32.c:114:6: warning: symbol 'sparc_remap_file_pages' was not declared. Should it be static? sys_sparc_32.c:127:1: warning: symbol 'c_sys_nis_syscall' was not declared. Should it be static? sys_sparc_32.c:144:1: warning: symbol 'sparc_breakpoint' was not declared. Should it be static? sys_sparc_32.c:200:16: warning: symbol 'sys_getdomainname' was not declared. Should it be static? Adapt systbls.h for use by both sparc32 + sparc64. In the process modify the return type of a few functions. Change return type from unsigned long to long: sys_mmap2() sys_mmap() Change return type from int to long: sparc_pipe() sys_getdomainname() The changed return type was done to align with sparc64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc32: fix sparse warnings in time_32.cSam Ravnborg
Fix following warnings: time_32.c:63:1: warning: symbol 'rtc_lock' was not declared. Should it be static? time_32.c:357:13: warning: symbol 'time_init' was not declared. Should it be static? time_32.c:148:16: warning: dereference of noderef expression Add extern definition of rtc_lock in mc146818rtc.h. time_init() is called from init/main.c - add prototype to kernel.h. Use proper u32 __iomem * for master_l10_counter. Fix all users. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc32: fix sparse warning in auxio_32.cSam Ravnborg
Fix following warning: auxio_32.c:133:33: warning: cast removes address space of expression To fix this auxio_power_register had to be defined as u8 _iomem. Use proper sbus operations on the pointer. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc32: fix sparse warnings in pcic.cSam Ravnborg
Fix following warnings: pcic.c:164:14: warning: symbol 'pcic_regs' was not declared. Should it be static? pcic.c:165:14: warning: symbol 'pcic_speculative' was not declared. Should it be static? pcic.c:166:14: warning: symbol 'pcic_trapped' was not declared. Should it be static? pcic.c:332:66: warning: Using plain integer as NULL pointer pcic.c:344:66: warning: Using plain integer as NULL pointer pcic.c:539:38: warning: Using plain integer as NULL pointer pcic.c:677:1: warning: symbol 'pcic_pin_to_irq' was not declared. Should it be static? pcic.c:783:6: warning: symbol 'pcic_nmi' was not declared. Should it be static? Add extern for pcic_regs. Define a few variables static. Replace 0 with NULL. Delete unused funtion pcic_pin_to_irq(). Include kernel.h so we could drop declaration of t_nmi and add prototype for pcic_nmi. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18sparc32: fix build breakageSam Ravnborg
Add forward declaration to kernel.h to fix build breakage in some configurations Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-03sparc64: Use 'ILOG2_4MB' instead of constant '22'.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-03sparc64: Handle 32-bit tasks properly in compute_effective_address().David S. Miller
If we have a 32-bit task we must chop off the top 32-bits of the 64-bit value just as the cpu would. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-03sparc64: Normalize NMI watchdog logging and behavior.David S. Miller
Bring this code in line with the perf based generic NMI watchdog in kernel/watchdog.c (which we should convert over to at some point). In particular, don't do anything super fancy when the watchdog triggers, and specifically don't do a do_exit() which only makes things worse. Either panic(), or WARN(). The latter of which will do all of the actions such as give us a stack backtrace. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02sparc32: introduce asm-generic/io.hSam Ravnborg
Use asm-generic/io.h definitions where applicable. The inxx() and outxx() methods whcih was duplicated in pcic.c + leon_pci.c are replaced by a set of static inlins from asm-generic/io.h iomap.c is replaced by the generic versions, but are still present to support sparc64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02sparc32: replace flip_dword() with swab32()Sam Ravnborg
The latter is a generic implmentation. flip_{,d}word() is sparc32 specific and will be dropped. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02sparc64: Make itc_sync_lock rawKirill Tkhai
One more place where we must not be able to be preempted or to be interrupted in RT. Always actually disable interrupts during synchronization cycle. Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
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