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71f2bf85e9
linux/drivers/scsi
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Javed Hasan 71f2bf85e9 scsi: libfc: Handling of extra kref 
Handling of extra kref which is done by lookup table in case rdata is
already present in list.

This issue was leading to memory leak. Trace from KMEMLEAK tool:

  unreferenced object 0xffff8888259e8780 (size 512):
    comm "kworker/2:1", pid 182614, jiffies 4433237386 (age 113021.971s)
    hex dump (first 32 bytes):
    58 0a ec cf 83 88 ff ff 00 00 00 00 00 00 00 00
    01 00 00 00 08 00 00 00 13 7d f0 1e 0e 00 00 10
  backtrace:
	[<000000006b25760f>] fc_rport_recv_req+0x3c6/0x18f0 [libfc]
	[<00000000f208d994>] fc_lport_recv_els_req+0x120/0x8a0 [libfc]
	[<00000000a9c437b8>] fc_lport_recv+0xb9/0x130 [libfc]
	[<00000000ad5be37b>] qedf_ll2_process_skb+0x73d/0xad0 [qedf]
	[<00000000e0eb6893>] process_one_work+0x382/0x6c0
	[<000000002dfd9e21>] worker_thread+0x57/0x5c0
	[<00000000b648204f>] kthread+0x1a0/0x1c0
	[<0000000072f5ab20>] ret_from_fork+0x35/0x40
	[<000000001d5c05d8>] 0xffffffffffffffff

Below is the log sequence which leads to memory leak. Here we get the
nested "Received PLOGI request" for same port and this request leads to
call the fc_rport_create() twice for the same rport.

	kernel: host1: rport fffce5: Received PLOGI request
	kernel: host1: rport fffce5: Received PLOGI in INIT state
	kernel: host1: rport fffce5: Port is Ready
	kernel: host1: rport fffce5: Received PRLI request while in state Ready
	kernel: host1: rport fffce5: PRLI rspp type 8 active 1 passive 0
	kernel: host1: rport fffce5: Received LOGO request while in state Ready
	kernel: host1: rport fffce5: Delete port
	kernel: host1: rport fffce5: Received PLOGI request
	kernel: host1: rport fffce5: Received PLOGI in state Delete - send busy

Link: https://lore.kernel.org/r/20200622101212.3922-2-jhasan@marvell.com
Reviewed-by: Girish Basrur <gbasrur@marvell.com>
Reviewed-by: Saurav Kashyap <skashyap@marvell.com>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-26 22:13:48 -04:00
..
aacraid scsi: aacraid: Fix an oops in error handling 2020-05-14 20:24:01 -04:00
aic7xxx treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
aic94xx scsi: Wire up ata_scsi_dma_need_drain for SAS HBA drivers 2020-06-15 23:40:43 -04:00
arcmsr SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
arm SCSI misc on 20200613 2020-06-13 13:17:49 -07:00
be2iscsi scsi: be2iscsi: Use scnprintf() for avoiding potential buffer overflow 2020-03-17 13:36:09 -04:00
bfa scsi: bfa: Make bfad_iocmd_ioc_get_stats() static 2020-05-11 22:22:07 -04:00
bnx2fc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
bnx2i treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
csiostor SCSI misc on 20200129 2020-01-29 18:16:16 -08:00
cxgbi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
cxlflash scsi: cxlflash: Remove an unnecessary NULL check 2020-06-09 21:57:27 -04:00
device_handler SCSI fixes on 20191101 2019-11-07 06:43:18 -07:00
dpt scsi: docs: convert dpti.txt to ReST 2020-03-11 23:07:59 -04:00
esas2r treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
fcoe scsi: fcoe: remove unneeded semicolon in fcoe.c 2020-04-22 00:07:40 -04:00
fnic scsi: fnic: Use true, false for fnic->internal_reset_inprogress 2020-05-07 22:03:07 -04:00
hisi_sas scsi: Wire up ata_scsi_dma_need_drain for SAS HBA drivers 2020-06-15 23:40:43 -04:00
ibmvscsi SCSI misc on 20200613 2020-06-13 13:17:49 -07:00
ibmvscsi_tgt scsi: ibmvscsi_tgt: remove set but not used variables 'iue' and 'sd' 2019-12-19 22:08:54 -05:00
isci scsi: Wire up ata_scsi_dma_need_drain for SAS HBA drivers 2020-06-15 23:40:43 -04:00
libfc scsi: libfc: Handling of extra kref 2020-06-26 22:13:48 -04:00
libsas scsi: libsas: Add missing annotation for sas_ata_qc_issue() 2020-04-14 21:46:15 -04:00
lpfc scsi: lpfc: Avoid another null dereference in lpfc_sli4_hba_unset() 2020-06-23 23:56:52 -04:00
megaraid scsi: megaraid_sas: Update driver version to 07.714.04.00-rc1 2020-05-11 23:06:24 -04:00
mpt3sas Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
mvsas scsi: Wire up ata_scsi_dma_need_drain for SAS HBA drivers 2020-06-15 23:40:43 -04:00
pcmcia scsi: docs: convert NinjaSCSI.txt to ReST 2020-03-11 23:08:01 -04:00
pm8001 scsi: Wire up ata_scsi_dma_need_drain for SAS HBA drivers 2020-06-15 23:40:43 -04:00
qedf Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
qedi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
qla2xxx scsi: qla2xxx: Fix a condition in qla2x00_find_all_fabric_devs() 2020-06-26 22:08:30 -04:00
qla4xxx treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
smartpqi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
snic scsi: snic: Make snic_io_exch_ver_cmpl_handler() return void 2020-04-24 18:21:15 -04:00
sym53c8xx_2 scsi: sym53c8xx: fix typos in comments 2019-12-19 22:08:54 -05:00
ufs scsi: ufs-bsg: Fix runtime PM imbalance on error 2020-06-15 22:37:08 -04:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
3w-9xxx.c scsi: 3w-9xxx: fix calls to dma_set_mask_and_coherent() 2019-02-25 21:37:25 -05:00
3w-9xxx.h
3w-sas.c SCSI fixes on 20190302 2019-03-02 11:39:54 -08:00
3w-sas.h
3w-xxxx.c compat_ioctl: move more drivers to compat_ptr_ioctl 2019-10-23 17:23:44 +02:00
3w-xxxx.h
53c700_d.h_shipped
53c700.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
53c700.h
53c700.scr
a100u2w.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
a100u2w.h
a2091.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
a2091.h
a3000.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
a3000.h
a4000t.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
advansys.c scsi: advansys: Replace zero-length array with flexible-array member 2020-02-18 00:39:54 -05:00
aha152x.c scsi: docs: convert aha152x.txt to ReST 2020-03-11 23:07:58 -04:00
aha152x.h
aha1542.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
aha1542.h
aha1740.c scsi: aha1740: Fix an errro handling path in aha1740_probe() 2020-03-26 21:10:53 -04:00
aha1740.h
am53c974.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
atari_scsi.c scsi: atari_scsi: sun3_scsi: Set sg_tablesize to 1 instead of SG_NONE 2019-11-12 22:21:34 -05:00
atp870u.c scsi: core: Clean up SG_NONE 2019-11-12 22:21:35 -05:00
atp870u.h
BusLogic.c scsi: BusLogic: Remove conversion to bool in blogic_inquiry() 2020-04-24 18:21:14 -04:00
BusLogic.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 388 2019-06-05 17:37:11 +02:00
bvme6000_scsi.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ch.c scsi: ch: remove ch_mutex() 2020-02-24 14:54:25 -05:00
constants.c scsi: core: Add DID_ALLOC_FAILURE and DID_MEDIUM_ERROR to hostbyte_table 2020-04-01 22:03:04 -04:00
dc395x.c scsi: dc395x: remove dc395x_bios_param 2020-03-26 22:51:18 -04:00
dc395x.h
dmx3191d.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
dpt_i2o.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
dpti.h scsi: docs: convert dpti.txt to ReST 2020-03-11 23:07:59 -04:00
esp_scsi.c scsi: esp_scsi: Add support for FSC chip 2019-12-19 22:08:51 -05:00
esp_scsi.h scsi: esp_scsi: Add support for FSC chip 2019-12-19 22:08:51 -05:00
fdomain_isa.c scsi: fdomain_isa: use CFG1_IRQ_MASK 2019-07-30 12:18:24 -04:00
fdomain_pci.c scsi: fdomain: Resurrect driver - PCI support 2019-06-18 19:46:18 -04:00
fdomain.c scsi: fdomain: use BSTAT_{MSG|CMD|IO} in fdomain_work() 2019-07-30 12:17:28 -04:00
fdomain.h scsi: fdomain: Add register definitions 2019-06-18 19:46:22 -04:00
FlashPoint.c
g_NCR5380.c scsi: docs: convert g_NCR5380.txt to ReST 2020-03-11 23:08:00 -04:00
gdth_ioctl.h scsi: gdth: remove dead code under #ifdef GDTH_IOCTL_PROC 2019-01-08 21:58:35 -05:00
gdth_proc.c scsi: gdth: Use scnprintf() for avoiding potential buffer overflow 2020-03-17 13:36:10 -04:00
gdth_proc.h scsi: gdth: remove gdth_{alloc,free}_ioctl 2019-01-08 21:57:42 -05:00
gdth.c scsi: gdth: Make __gdth_execute static 2020-04-14 21:32:39 -04:00
gdth.h scsi: gdth: remove ISA and EISA support 2019-01-08 21:58:35 -05:00
gvp11.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
gvp11.h
hosts.c scsi: core: add scsi_host_busy_iter() 2020-02-28 20:54:52 -05:00
hpsa_cmd.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
hpsa.c scsi: hpsa: hpsa_ioctl(): Tidy up a bit 2020-06-04 10:15:32 -04:00
hpsa.h scsi: hpsa: correct device resets 2019-06-18 19:46:18 -04:00
hptiop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 2019-06-05 17:36:37 +02:00
hptiop.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 2019-06-05 17:36:37 +02:00
imm.c SCSI sg on 20190709 2019-07-11 15:17:41 -07:00
imm.h
initio.c scsi: initio: make initio_state_7() static 2019-12-19 22:08:54 -05:00
initio.h
ipr.c scsi: Wire up ata_scsi_dma_need_drain for SAS HBA drivers 2020-06-15 23:40:43 -04:00
ipr.h SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
ips.c scsi: ips: make array 'options' static const, makes object smaller 2019-09-30 22:46:40 -04:00
ips.h scsi: ips: properly handle 64-bit DMA 2018-11-06 21:31:28 -05:00
iscsi_boot_sysfs.c scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj 2020-06-02 21:23:47 -04:00
iscsi_tcp.c scsi: iscsi: Don't destroy session if there are outstanding connections 2020-01-15 22:48:34 -05:00
iscsi_tcp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
jazz_esp.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
lasi700.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
libiscsi_tcp.c SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
libiscsi.c scsi: iscsi: Register sysfs for iscsi workqueue 2020-05-26 15:40:30 -04:00
mac53c94.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
mac53c94.h
mac_esp.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
mac_scsi.c scsi: atari_scsi: sun3_scsi: Set sg_tablesize to 1 instead of SG_NONE 2019-11-12 22:21:34 -05:00
Makefile scsi: remove pointless $(MODVERDIR)/$(obj)/53c700.ver 2019-07-17 22:39:27 +09:00
megaraid.c scsi: simplify scsi_partsize 2020-03-24 07:57:07 -06:00
megaraid.h
mesh.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
mesh.h
mvme16x_scsi.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
mvme147.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mvme147.h
mvumi.c SCSI sg on 20190709 2019-07-11 15:17:41 -07:00
mvumi.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
myrb.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
myrb.h scsi: mylex: Use the correct style for SPDX License Identifier 2020-01-02 21:57:44 -05:00
myrs.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
myrs.h scsi: mylex: Use the correct style for SPDX License Identifier 2020-01-02 21:57:44 -05:00
ncr53c8xx.c scsi: docs: convert ncr53c8xx.txt to ReST 2020-03-11 23:08:01 -04:00
ncr53c8xx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
NCR5380.c scsi: NCR5380: Add disconnect_mask module parameter 2019-11-19 21:37:34 -05:00
NCR5380.h Revert "scsi: ncr5380: Increase register polling limit" 2019-06-20 15:37:02 -04:00
nsp32_debug.c
nsp32_io.h
nsp32.c scsi: Fix various misspellings of "connect" 2019-10-24 21:22:32 -04:00
nsp32.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
pmcraid.c scsi: pmcraid: Replace dma_pool_malloc with dma_pool_zalloc 2020-04-24 18:21:15 -04:00
pmcraid.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
ppa.c scsi: ppa: use sg helper to iterate over scatterlist 2019-06-20 15:21:33 -04:00
ppa.h
ps3rom.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164 2019-05-30 11:26:38 -07:00
qla1280.c scsi: qla1280: make qla1280_firmware_mutex and qla1280_fw_tbl static 2020-04-14 21:42:10 -04:00
qla1280.h scsi: qla1280: Fix dma firmware download, if dma address is 64bit 2020-01-15 23:09:11 -05:00
qlogicfas408.c scsi: qlogicfas408: clean up a couple of indentation issues 2019-03-19 17:11:37 -04:00
qlogicfas408.h
qlogicfas.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
qlogicpti.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
qlogicpti.h scsi: qlogicpti: Use of_node_name_eq for node name comparisons 2019-02-13 22:07:03 -05:00
raid_class.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437 2019-06-05 17:37:17 +02:00
script_asm.pl treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
scsi_common.c
scsi_debug.c scsi: scsi_debug: Parser tables and code interaction 2020-05-19 22:25:52 -04:00
scsi_debugfs.c scsi: scsi_debugfs: Use for_each_set_bit to simplify code 2019-07-30 12:42:55 -04:00
scsi_debugfs.h scsi: core: add SPDX tags to scsi midlayer files missing licensing information 2019-05-21 06:16:21 -04:00
scsi_devinfo.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
scsi_dh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_error.c scsi: core: Fix incorrect usage of shost_for_each_device 2020-05-19 21:54:17 -04:00
scsi_ioctl.c scsi_ioctl.c: switch SCSI_IOCTL_GET_IDLUN to copy_to_user() 2020-04-25 18:06:39 -04:00
scsi_lib_dma.c
scsi_lib.c SCSI misc on 20200605 2020-06-05 15:11:50 -07:00
scsi_logging.c scsi: core: Log SCSI command age with errors 2019-09-30 23:07:16 -04:00
scsi_logging.h scsi: core: Fix a compiler warning triggered by the SCSI logging code 2019-12-19 22:08:54 -05:00
scsi_netlink.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_pm.c scsi: pm: Balance pm_only counter of request queue during system resume 2020-05-11 19:43:25 -04:00
scsi_priv.h scsi: core: Remove cmd_list functionality 2020-02-28 20:54:55 -05:00
scsi_proc.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
scsi_sas_internal.h
scsi_scan.c scsi: core: Remove cmd_list functionality 2020-02-28 20:54:55 -05:00
scsi_sysctl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209 2019-05-30 11:29:53 -07:00
scsi_sysfs.c scsi: core: Use scnprintf() for avoiding potential buffer overflow 2020-03-17 13:36:12 -04:00
scsi_trace.c scsi: scsi_trace: Use get_unaligned_be24() 2020-03-16 22:08:36 -04:00
scsi_transport_api.h
scsi_transport_fc.c SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi_transport_iscsi.c scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim 2020-05-26 21:20:24 -04:00
scsi_transport_sas.c scsi: scsi_transport_sas: Fix memory leak when removing devices 2019-11-21 21:12:39 -05:00
scsi_transport_spi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_transport_srp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502 2019-06-19 17:09:56 +02:00
scsi.c scsi: core: Remove cmd_list functionality 2020-02-28 20:54:55 -05:00
scsi.h
scsicam.c block: move struct partition out of genhd.h 2020-03-24 07:57:08 -06:00
sd_dif.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 410 2019-06-05 17:37:14 +02:00
sd_zbc.c for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
sd.c SCSI misc on 20200605 2020-06-05 15:11:50 -07:00
sd.h scsi: sd_zbc: emulate ZONE_APPEND commands 2020-05-12 20:36:28 -06:00
sense_codes.h
ses.c SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
sg.c scsi: sg: add sg_remove_request in sg_write 2020-04-14 21:15:53 -04:00
sgiwd93.c scsi: sgiwd93: Remove unneeded semicolon in sgiwd93.c 2020-04-24 18:21:29 -04:00
sim710.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
sni_53c710.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
sr_ioctl.c
sr_vendor.c scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled 2020-02-24 14:59:01 -05:00
sr.c SCSI misc on 20200613 2020-06-13 13:17:49 -07:00
sr.h scsi: sr: get rid of sr global mutex 2020-02-24 15:01:57 -05:00
st_options.h
st.c scsi: st: Convert convert get_user_pages() --> pin_user_pages() 2020-06-09 21:57:26 -04:00
st.h
stex.c scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
storvsc_drv.c SCSI misc on 20200613 2020-06-13 13:17:49 -07:00
sun3_scsi_vme.c
sun3_scsi.c scsi: atari_scsi: sun3_scsi: Set sg_tablesize to 1 instead of SG_NONE 2019-11-12 22:21:34 -05:00
sun3x_esp.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
sun_esp.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
virtio_scsi.c scsi: core: remove .for_blk_mq 2020-02-10 22:46:55 -05:00
vmw_pvscsi.c scsi: vmw_pvscsi: Use true, false for adapter->use_msg 2020-05-07 22:03:54 -04:00
vmw_pvscsi.h
wd33c93.c scsi: wd33c93: Mark expected switch fall-through 2019-08-07 21:35:59 -04:00
wd33c93.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
wd719x.c SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
wd719x.h scsi: wd719x: use per-command private data 2018-11-15 14:27:08 -05:00
xen-scsifront.c scsi: xen-scsifront: remove DISABLE_CLUSTERING 2018-12-18 23:13:12 -05:00
zalon.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
zorro7xx.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
zorro_esp.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00