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2008-12-10MN10300: Fix the preemption resume_kernel() routineAkira Takeuchi
Fix the preemption resume_kernel() routine by inverting the test to see whether interrupts are off (IM7 is all enabled, not all disabled). Furthermore, interrupts should be disabled on entry to resume_kernel() so that they're correctly set for jumping to restore_all() and doing the need reschedule test. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-10MN10300: Discard low-priority Tx interrupts when closing an on-chip serial portAkira Takeuchi
Discard low-prioriy Tx interrupts when closing an MN10300 on-chip serial port. The MN10300 on-chip serial port uses three interrupts to manage its serial ports: (1) A very high priority interrupt that drives virtual DMA for Rx. (2) A very high priority interrupt that drives virtual DMA for Tx. (3) A normal priority virtual interrupt that does the normal UART interrupt stuff and is shared between Rx and Tx. mn10300_serial_stop_tx() only disables the high priority Tx interrupt. It doesn't also disable the normal priority one because it is shared with Rx. However, the high priority interrupt may interrupt local_irq_disabled() sections, and so may have queued up a low priority virtual interrupt whilst the UART driver is asking for the Tx interrupt to be disabled. The result of this can be an oops when we try to process the interrupt in mn10300_serial_transmit_interrupt() as port->uart.info and port->uart.info->tty may have gone away. To deal with this, if either of those pointers is NULL, we make sure the high-priority Tx interrupt is disabled and discard the interrupt. The low priority interrupt is disabled by the mn10300_serial_pic irq_chip table. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-10MN10300: vmlinux.lds.S cleanup - use PAGE_SIZE, PERCPU macrosCyrill Gorcunov
Include the linux/page.h header into the MN10300 kernel linker script thus allowing us to use PAGE_SIZE macro instead of a numeric constant. Also use the PERCPU macro instead of an explicit section definition. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-10Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] SN: prevent IRQ retargetting in request_irq() [IA64] Fix section mismatch ioc3uart_init()/ioc3uart_submodule [IA64] Clear up section mismatch for ioc4_ide_attach_one. [IA64] Clear up section mismatch with arch_unregister_cpu() [IA64] Clear up section mismatch for sn_check_wars. [IA64] Updated the generic_defconfig to work with the 2.6.28-rc7 kernel. [IA64] Fix GRU compile error w/o CONFIG_HUGETLB_PAGE [IA64] eliminate NULL test and memset after alloc_bootmem [IA64] remove BUILD_BUG_ON from paravirt_getreg()
2008-12-10Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Better than nothing implementation of PCI mmap to fix X.
2008-12-10uml: boot broken due to buffer overrunBalbir Singh
mconsole_init() passed 256 bytes as length in os_create_unix_socket, while the sizeof UNIX_PATH_MAX is 108. This patch fixes that problem and avoids a big overrun bug reported on UML bootup. sockaddr_un.sun_path is UNIX_PATH_MAX long which causes the problem. Reported-by: Vikas K Managutte <vikki.km@gmail.com> Reported-by: Sarvesh Kumar Lal Das <skldas@gmail.com> Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Reviewed-by: WANG Cong <wangcong@zeuux.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: <stable@kernel.org> [please check with Jeff] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-09MIPS: Better than nothing implementation of PCI mmap to fix X.Ralf Baechle
Certain X11 servers such as the SIS server will only work if PCI mmap is implemented. This patch implements PCI mmap but to be on the same side so close to a release it only supports uncached mappings so performance will not be optimal for some uses such as framebuffers. Thanks to Zhang Le <r0bertz@gentoo.org> for the original report and testing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-09[IA64] SN: prevent IRQ retargetting in request_irq()John Keller
With the introduction of the generic affinity autoselector, irq_select_affinity(), IRQs are now being retargetted, using a default mask, via the request_irq() path. This results in all IRQs targetted at CPU 0. SN Altix assigns affinity in the SN PROM, and does not expect that to be changed as part of request_irq(). Set the IRQ_AFFINITY_SET flag to prevent request_irq() from resetting affinity. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-12-09[IA64] Clear up section mismatch with arch_unregister_cpu()Robin Holt
The generic_defconfig has three section mismatches. This clears arch_unregister_cpu() Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-12-09[IA64] Clear up section mismatch for sn_check_wars.Robin Holt
The generic_defconfig has three section mismatches. This clears up sn_check_wars(). Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-12-09[IA64] Updated the generic_defconfig to work with the 2.6.28-rc7 kernel.Robin Holt
The AUTOFS=y and AUTOFS4=y causes problems with some distros versions of automount. I turned both of those to =m and then followed the default prompts for everything else. I did notice that CONFIG_PNP_DEBUG got changed to CONFIG_PNP_DEBUG_MESSAGES and the default was a =y so I turned that back to a =n. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-12-09[IA64] eliminate NULL test and memset after alloc_bootmemJulia Lawall
As noted by Akinobu Mita in patch b1fceac2b9e04d278316b2faddf276015fc06e3b, alloc_bootmem and related functions never return NULL and always return a zeroed region of memory. Thus a NULL test or memset after calls to these functions is unnecessary. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-12-09[IA64] remove BUILD_BUG_ON from paravirt_getreg()Alexey Dobriyan
CC arch/ia64/kernel/asm-offsets.s In file included from include/linux/bitops.h:17, from include/linux/kernel.h:15, from include/linux/sched.h:52, from arch/ia64/kernel/asm-offsets.c:9: arch/ia64/include/asm/bitops.h: In function 'set_bit': arch/ia64/include/asm/bitops.h:47: error: implicit declaration of function 'BUILD_BUG_ON' Obvious inclusion of kernel.h doesn't fix it, because of circular dependencies involving fls.h and log2(). Fixing the latter requires some serious header surgery, it seems, so just remove BUILD_BUG_ON for now. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-12-09Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Fix alignment fault handling for ARMv6 and later CPUs [ARM] 5340/1: fix stack placement after noexecstack changes [ARM] 5339/1: fix __fls() on ARM [ARM] Orion: fix bug in pcie configuration cycle function field mask [ARM] omap: fix a pile of issues
2008-12-09Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc/virtex5: Fix Virtex5 machine check handling
2008-12-09Merge branch 'merge' of ↵Paul Mackerras
master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge
2008-12-08x86: fix default_spin_lock_flags() prototypeIngo Molnar
these warnings: arch/x86/kernel/paravirt-spinlocks.c: In function ‘default_spin_lock_flags’: arch/x86/kernel/paravirt-spinlocks.c:12: warning: passing argument 1 of ‘__raw_spin_lock’ from incompatible pointer type arch/x86/kernel/paravirt-spinlocks.c: At top level: arch/x86/kernel/paravirt-spinlocks.c:11: warning: ‘default_spin_lock_flags’ defined but not used showed that the prototype of default_spin_lock_flags() was confused about what type spinlocks have. the proper type on UP is raw_spinlock_t. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-08AMD IOMMU: __unmap_single: check for bad_dma_address instead of 0Joerg Roedel
Impact: minor fix Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2008-12-08AMD IOMMU: fix WARN_ON in dma_ops unmap pathJoerg Roedel
Impact: minor fix Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2008-12-08AMD IOMMU: fix typo in commentJoerg Roedel
Impact: cleanup Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2008-12-08AMD IOMMU: fix loop counter in free_pagetable functionJoerg Roedel
Impact: bugfix Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2008-12-08AMD IOMMU: fix iommu_map_page functionJoerg Roedel
Impact: bugfix in iommu_map_page function Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2008-12-07[ARM] Fix alignment fault handling for ARMv6 and later CPUsRussell King
On ARMv6 and later CPUs, it is possible for userspace processes to get stuck on a misaligned load or store due to the "ignore fault" setting; unlike previous CPUs, retrying the instruction without the 'A' bit set does not always cause the load to succeed. We have no real option but to default to fixing up alignment faults on these CPUs, and having the CPU fix up those misaligned accesses which it can. Reported-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-06[ARM] 5340/1: fix stack placement after noexecstack changesLennert Buytenhek
Commit 8ec53663d2698076468b3e1edc4e1b418bd54de3 ("[ARM] Improve non-executable support") added support for detecting non-executable stack binaries. One of the things it does is to make READ_IMPLIES_EXEC be set in ->personality if we are running on a CPU that doesn't support the XN ("Execute Never") page table bit or if we are running a binary that needs an executable stack. This exposed a latent bug in ARM's asm/processor.h due to which we'll end up placing the stack at a very low address, where it will bump into the heap on any application that uses significant amount of stack or heap or both, causing many interesting crashes. Fix this by testing the ADDR_LIMIT_32BIT bit in ->personality instead of testing for equality against PER_LINUX_32BIT. Reviewed-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-05powerpc/virtex5: Fix Virtex5 machine check handlingGrant Likely
The 440x5 core in the Virtex5 uses the 440A type machine check (ie, they have MCSRR0/MCSRR1). They thus need to call the appropriate fixup function to hook the right variant of the exception. Without this, all machine checks become fatal due to loss of context when entering the exception handler. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-12-05MIPS: Fix incorrect use of loose in vpe.cNick Andrew
It should be 'lose', not 'loose'. Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc: powerpc/83xx: Enable FIXED_PHY in mpc834x_itx and mpc83xx defconfigs
2008-12-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Sync FPU state in VIS emulation handler. sparc64: Fix VIS emulation bugs sparc: asm/bitops.h should define __fls sparc64: Fix bug in PTRACE_SETFPREGS64 handling.
2008-12-04Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix early panic with boot option "nosmp" x86/oprofile: fix Intel cpu family 6 detection oprofile: fix CPU unplug panic in ppro_stop() AMD IOMMU: fix possible race while accessing iommu->need_sync AMD IOMMU: set device table entry for aliased devices AMD IOMMU: struct amd_iommu remove padding on 64 bit x86: fix broken flushing in GART nofullflush path x86: fix dma_mapping_error for 32bit x86
2008-12-04Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: don't export sched_mc_power_savings in laptops
2008-12-04Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere. MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32. MIPS: o32: Fix number of arguments to splice(2). MIPS: Malta: Consolidate platform device code. MIPS: IP22, Fulong, Malta: Update defconfigs. MIPS: Malta: Add back RTC support MIPS: Fix potential DOS by untrusted user app.
2008-12-04powerpc/83xx: Enable FIXED_PHY in mpc834x_itx and mpc83xx defconfigsAnton Vorontsov
This is needed so that Vitesse 7385 5-port switch could work on MPC8349E-mITX boards. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-04MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere.David Daney
When the o32 errno was changed to ENOSYS, we forgot to update the code for 64bit kernels. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04MIPS: o32: Fix number of arguments to splice(2).Ralf Baechle
The syscall code was assuming splice only takes 4 arguments so no stack arguments were being copied from the userspace stack to the kernel stack. As the result splice was likely to fail with EINVAL. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04MIPS: Malta: Consolidate platform device code.Ralf Baechle
After adding the RTC platform device to malta-platform.c malta-mtd.c should get unified with the rest of the platform device code.
2008-12-04MIPS: IP22, Fulong, Malta: Update defconfigs.Ralf Baechle
These haven't seen much attention for too long but particularly important enable RTC_CLASS and CONFIG_RTC_HCTOSYS so the wall clock time is set on kernel startup. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04MIPS: Malta: Add back RTC supportTiejun Chen
With the conversion of MIPS to RTC_LIB the old RTC driver CONFIG_RTC became unselectable. Fix by setting up a platform device. Also enable RTC_CLASS so system time gets set from RTC on kernel initialization. [Ralf: Original patch by Tiejun; polished nice and shiny by me] Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04MIPS: Fix potential DOS by untrusted user app.Vlad Malov
On a 64 bit kernel if an o32 syscall was made with a syscall number less than 4000, we would read the function from outside of the bounds of the syscall table. This led to non-deterministic behavior including system crashes. While we were at it we reworked the 32 bit version as well to use fewer instructions. Both 32 and 64 bit versions are use the same code now. Signed-off-by: Vlad Malov <Vlad.Malov@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04sparc64: Sync FPU state in VIS emulation handler.Hong H. Pham
Copy the FPU state to the task's thread_info->fpregs for the VIS emulation functions to access. Signed-off-by: Hong H. Pham <hong.pham@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-04x86: fix early panic with boot option "nosmp"Andi Kleen
Impact: fix boot crash with numcpus=0 on certain systems Fix early exception in __get_smp_config with nosmp. Bail out early when there is no MP table. Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-04[ARM] 5339/1: fix __fls() on ARMNicolas Pitre
Commit 0c65f459ce6c intended to fix truncation issues with fls() on ARMv5+ by renaming it to __fls() and wrapping it into a C function. However that didn't take into account the fact that __fls() already already had different semantics in the kernel. Let's move the __fls() code into fls() function directly, and redefine __fls() with the appropriate semantics. While at it, bring a generic __fls() definition for pre ARMv5 too. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-03sparc64: Fix VIS emulation bugsJoseph Myers
This patch fixes some bugs in VIS emulation that cause the GCC test failure FAIL: gcc.target/sparc/pdist-3.c execution test for both 32-bit and 64-bit testing on hardware lacking these instructions. The emulation code for the pdist instruction uses RS1(insn) for both source registers rs1 and rs2, which is obviously wrong and leads to the instruction doing nothing (the observed problem), and further inspection of the code shows that RS1 uses a shift of 24 and RD a shift of 25, which clearly cannot both be right; examining SPARC documentation indicates the correct shift for RS1 is 14. This patch fixes the bug if single-stepping over the affected instruction in the debugger, but not if the testcase is run standalone. For that, Wind River has another patch I hope they will send as a followup to this patch submission. Signed-off-by: Joseph Myers <joseph@codesourcery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-03MN10300: Introduce barriers to replace removed volatiles in gdbstub 16550 driverDavid Howells
Introduce into the MN10300 gdbstub 16550 driver a couple of barrier() calls to replace the removed volatility of the input/output index variables for the Rx ring buffer. A previous patch added them into the on-chip serial port driver. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-03sparc: asm/bitops.h should define __flsRusty Russell
bitops_64.h includes the generic one; pretty sure 32 should too. (Found by using __fls in generic code and breaking sparc defconfig build: thanks Stephen and linux-next!) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-03Merge branch 'oprofile-for-tip' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
2008-12-03x86/oprofile: fix Intel cpu family 6 detectionWilliam Cohen
Alan Jenkins wrote: > This is on an EeePC 701, /proc/cpuinfo as attached. > > Is this expected? Will the next release work? > > Thanks, Alan > > # opcontrol --setup --no-vmlinux > cpu_type 'unset' is not valid > you should upgrade oprofile or force the use of timer mode > > # opcontrol -v > opcontrol: oprofile 0.9.4 compiled on Nov 29 2008 22:44:10 > > # cat /dev/oprofile/cpu_type > i386/p6 > # uname -r > 2.6.28-rc6eeepc Hi Alan, Looking at the kernel driver code for oprofile it can return the "i386/p6" for the cpu_type. However, looking at the user-space oprofile code there isn't the matching entry in libop/op_cpu_type.c or the events/unit_mask files in events/i386 directory. The Intel AP-485 says this is a "Intel Pentium M processor model D". Seems like the oprofile kernel driver should be identifying the processor as "i386/p6_mobile" The driver identification code doesn't look quite right in nmi_init.c http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=blob;f=arch/x86/oprofile/nmi_int.c;h=022cd41ea9b4106e5884277096e80e9088a7c7a9;hb=HEAD has: 409 case 10 ... 13: 410 *cpu_type = "i386/p6"; 411 break; Referring to the Intel AP-485: case 10 and 11 should produce "i386/piii" case 13 should produce "i386/p6_mobile" I didn't see anything for case 12. Something like the attached patch. I don't have a celeron machine to verify that changes in this area of the kernel fix thing. -Will Signed-off-by: William Cohen <wcohen@redhat.com> Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-12-03powerpc/83xx: Fix MCU support merge issue in mpc8349emitx.dtsAnton Vorontsov
Just found the merge issue in 442746989d92afc125040e0f29b33602ad94da99 ("powerpc/83xx: Add support for MCU microcontroller in .dts files"): the commit adds the MCU controller node into the DMA node, which is wrong because the MCU sits on the I2C bus. Fix this by moving the MCU node into the I2C controller node. The original patch[1] was OK though. ;-) Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-03oprofile: fix CPU unplug panic in ppro_stop()Eric Dumazet
If oprofile statically compiled in kernel, a cpu unplug triggers a panic in ppro_stop(), because a NULL pointer is dereferenced. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-12-03Merge branch 'iommu-fixes-2.6.28' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
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