1fe06f66ad
Changes in 4.9.262
uapi: nfnetlink_cthelper.h: fix userspace compilation error
ethernet: alx: fix order of calls on resume
ath9k: fix transmitting to stations in dynamic SMPS mode
net: Fix gro aggregation for udp encaps with zero csum
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
can: skb: can_skb_set_owner(): fix ref counting if socket was closed before setting skb ownership
can: flexcan: assert FRZ bit in flexcan_chip_freeze()
can: flexcan: enable RX FIFO after FRZ/HALT valid
netfilter: x_tables: gpf inside xt_find_revision()
cifs: return proper error code in statfs(2)
Revert "mm, slub: consider rest of partial list if acquire_slab() fails"
net/mlx4_en: update moderation when config reset
net: sched: avoid duplicates in classes dump
net: lapbether: Remove netif_start_queue / netif_stop_queue
net: davicom: Fix regulator not turned off on failed probe
net: davicom: Fix regulator not turned off on driver removal
media: usbtv: Fix deadlock on suspend
udf: fix silent AED tagLocation corruption
mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()'
mmc: mediatek: fix race condition between msdc_request_timeout and irq
powerpc/perf: Record counter overflow always if SAMPLE_IP is unset
PCI: xgene-msi: Fix race in installing chained irq handler
s390/smp: __smp_rescan_cpus() - move cpumask away from stack
scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling
ALSA: hda/hdmi: Cancel pending works before suspend
ALSA: hda: Avoid spurious unsol event handling during S3/S4
ALSA: usb-audio: Fix "cannot get freq eq" errors on Dell AE515 sound bar
s390/dasd: fix hanging DASD driver unbind
mmc: core: Fix partition switch time for eMMC
scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names
Goodix Fingerprint device is not a modem
usb: gadget: f_uac2: always increase endpoint max_packet_size by one audio slot
usb: renesas_usbhs: Clear PIPECFG for re-enabling pipe with other EPNUM
xhci: Improve detection of device initiated wake signal.
USB: serial: io_edgeport: fix memory leak in edge_startup
USB: serial: ch341: add new Product ID
USB: serial: cp210x: add ID for Acuity Brands nLight Air Adapter
USB: serial: cp210x: add some more GE USB IDs
usbip: fix stub_dev to check for stream socket
usbip: fix vhci_hcd to check for stream socket
usbip: fix vudc to check for stream socket
usbip: fix stub_dev usbip_sockfd_store() races leading to gpf
usbip: fix vhci_hcd attach_store() races leading to gpf
staging: rtl8192u: fix ->ssid overflow in r8192_wx_set_scan()
staging: rtl8188eu: prevent ->ssid overflow in rtw_wx_set_scan()
staging: rtl8712: unterminated string leads to read overflow
staging: rtl8188eu: fix potential memory corruption in rtw_check_beacon_data()
staging: ks7010: prevent buffer overflow in ks_wlan_set_scan()
staging: rtl8712: Fix possible buffer overflow in r8712_sitesurvey_cmd
staging: rtl8192e: Fix possible buffer overflow in _rtl92e_wx_set_scan
staging: comedi: addi_apci_1032: Fix endian problem for COS sample
staging: comedi: addi_apci_1500: Fix endian problem for command sample
staging: comedi: adv_pci1710: Fix endian problem for AI command data
staging: comedi: das6402: Fix endian problem for AI command data
staging: comedi: das800: Fix endian problem for AI command data
staging: comedi: dmm32at: Fix endian problem for AI command data
staging: comedi: me4000: Fix endian problem for AI command data
staging: comedi: pcl711: Fix endian problem for AI command data
staging: comedi: pcl818: Fix endian problem for AI command data
sh_eth: fix TRSCER mask for R7S72100
NFSv4.2: fix return value of _nfs4_get_security_label()
block: rsxx: fix error return code of rsxx_pci_probe()
configfs: fix a use-after-free in __configfs_open_file
alpha: add $(src)/ rather than $(obj)/ to make source file path
alpha: merge build rules of division routines
alpha: make short build log available for division routines
alpha: Package string routines together
alpha: switch __copy_user() and __do_clean_user() to normal calling conventions
powerpc/64s: Fix instruction encoding for lis in ppc_function_entry()
binfmt_misc: fix possible deadlock in bm_register_write
hwmon: (lm90) Fix max6658 sporadic wrong temperature reading
KVM: arm64: Fix exclusive limit for IPA size
iio: imu: adis16400: release allocated memory on failure
iio: imu: adis16400: fix memory leak
xen/events: reset affinity of 2-level event when tearing it down
xen/events: don't unmask an event channel when an eoi is pending
xen/events: avoid handling the same event on two cpus at the same time
Linux 4.9.262
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie9b6330a4a2f37c089401f67beadb5ede1f679ba
102 lines
2.4 KiB
ArmAsm
102 lines
2.4 KiB
ArmAsm
/*
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* arch/alpha/lib/clear_user.S
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* Contributed by Richard Henderson <rth@tamu.edu>
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*
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* Zero user space, handling exceptions as we go.
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*
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* We have to make sure that $0 is always up-to-date and contains the
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* right "bytes left to zero" value (and that it is updated only _after_
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* a successful copy). There is also some rather minor exception setup
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* stuff.
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*/
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#include <asm/export.h>
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/* Allow an exception for an insn; exit if we get one. */
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#define EX(x,y...) \
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99: x,##y; \
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.section __ex_table,"a"; \
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.long 99b - .; \
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lda $31, $exception-99b($31); \
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.previous
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.set noat
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.set noreorder
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.align 4
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.globl __clear_user
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.ent __clear_user
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.frame $30, 0, $26
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.prologue 0
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$loop:
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and $1, 3, $4 # e0 :
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beq $4, 1f # .. e1 :
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0: EX( stq_u $31, 0($16) ) # e0 : zero one word
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subq $0, 8, $0 # .. e1 :
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subq $4, 1, $4 # e0 :
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addq $16, 8, $16 # .. e1 :
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bne $4, 0b # e1 :
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unop # :
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1: bic $1, 3, $1 # e0 :
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beq $1, $tail # .. e1 :
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2: EX( stq_u $31, 0($16) ) # e0 : zero four words
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subq $0, 8, $0 # .. e1 :
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EX( stq_u $31, 8($16) ) # e0 :
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subq $0, 8, $0 # .. e1 :
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EX( stq_u $31, 16($16) ) # e0 :
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subq $0, 8, $0 # .. e1 :
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EX( stq_u $31, 24($16) ) # e0 :
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subq $0, 8, $0 # .. e1 :
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subq $1, 4, $1 # e0 :
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addq $16, 32, $16 # .. e1 :
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bne $1, 2b # e1 :
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$tail:
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bne $2, 1f # e1 : is there a tail to do?
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ret $31, ($26), 1 # .. e1 :
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1: EX( ldq_u $5, 0($16) ) # e0 :
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clr $0 # .. e1 :
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nop # e1 :
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mskqh $5, $0, $5 # e0 :
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EX( stq_u $5, 0($16) ) # e0 :
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ret $31, ($26), 1 # .. e1 :
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__clear_user:
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and $17, $17, $0
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and $16, 7, $4 # e0 : find dest misalignment
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beq $0, $zerolength # .. e1 :
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addq $0, $4, $1 # e0 : bias counter
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and $1, 7, $2 # e1 : number of bytes in tail
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srl $1, 3, $1 # e0 :
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beq $4, $loop # .. e1 :
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EX( ldq_u $5, 0($16) ) # e0 : load dst word to mask back in
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beq $1, $oneword # .. e1 : sub-word store?
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mskql $5, $16, $5 # e0 : take care of misaligned head
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addq $16, 8, $16 # .. e1 :
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EX( stq_u $5, -8($16) ) # e0 :
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addq $0, $4, $0 # .. e1 : bytes left -= 8 - misalignment
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subq $1, 1, $1 # e0 :
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subq $0, 8, $0 # .. e1 :
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br $loop # e1 :
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unop # :
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$oneword:
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mskql $5, $16, $4 # e0 :
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mskqh $5, $2, $5 # e0 :
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or $5, $4, $5 # e1 :
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EX( stq_u $5, 0($16) ) # e0 :
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clr $0 # .. e1 :
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$zerolength:
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$exception:
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ret $31, ($26), 1 # .. e1 :
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.end __clear_user
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EXPORT_SYMBOL(__clear_user)
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