Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings:
drivers/scsi/sun3_scsi.c: warning: this statement may fall through
[-Wimplicit-fallthrough=]: => 399:9, 403:9
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings (Building: sparc defconfig):
drivers/scsi/qlogicpti.c: In function 'qlogicpti_mbox_command':
drivers/scsi/qlogicpti.c:202:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 6: sbus_writew(param[5], qpti->qregs + MBOX5);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:203:2: note: here
case 5: sbus_writew(param[4], qpti->qregs + MBOX4);
^~~~
drivers/scsi/qlogicpti.c:203:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 5: sbus_writew(param[4], qpti->qregs + MBOX4);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:204:2: note: here
case 4: sbus_writew(param[3], qpti->qregs + MBOX3);
^~~~
drivers/scsi/qlogicpti.c:204:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 4: sbus_writew(param[3], qpti->qregs + MBOX3);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:205:2: note: here
case 3: sbus_writew(param[2], qpti->qregs + MBOX2);
^~~~
drivers/scsi/qlogicpti.c:205:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 3: sbus_writew(param[2], qpti->qregs + MBOX2);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:206:2: note: here
case 2: sbus_writew(param[1], qpti->qregs + MBOX1);
^~~~
drivers/scsi/qlogicpti.c:206:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 2: sbus_writew(param[1], qpti->qregs + MBOX1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:207:2: note: here
case 1: sbus_writew(param[0], qpti->qregs + MBOX0);
^~~~
drivers/scsi/qlogicpti.c:256:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 6: param[5] = sbus_readw(qpti->qregs + MBOX5);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:257:2: note: here
case 5: param[4] = sbus_readw(qpti->qregs + MBOX4);
^~~~
drivers/scsi/qlogicpti.c:257:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 5: param[4] = sbus_readw(qpti->qregs + MBOX4);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:258:2: note: here
case 4: param[3] = sbus_readw(qpti->qregs + MBOX3);
^~~~
drivers/scsi/qlogicpti.c:258:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 4: param[3] = sbus_readw(qpti->qregs + MBOX3);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:259:2: note: here
case 3: param[2] = sbus_readw(qpti->qregs + MBOX2);
^~~~
drivers/scsi/qlogicpti.c:259:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 3: param[2] = sbus_readw(qpti->qregs + MBOX2);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:260:2: note: here
case 2: param[1] = sbus_readw(qpti->qregs + MBOX1);
^~~~
drivers/scsi/qlogicpti.c:260:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
case 2: param[1] = sbus_readw(qpti->qregs + MBOX1);
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qlogicpti.c:261:2: note: here
case 1: param[0] = sbus_readw(qpti->qregs + MBOX0);
^~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings:
drivers/scsi/ibmvscsi/ibmvfc.c: In function 'ibmvfc_npiv_login_done':
drivers/scsi/ibmvscsi/ibmvfc.c:4022:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
ibmvfc_retry_host_init(vhost);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:4023:2: note: here
case IBMVFC_MAD_DRIVER_FAILED:
^~~~
drivers/scsi/ibmvscsi/ibmvfc.c: In function 'ibmvfc_bsg_request':
drivers/scsi/ibmvscsi/ibmvfc.c:1830:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
port_id = (bsg_request->rqst_data.h_els.port_id[0] << 16) |
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(bsg_request->rqst_data.h_els.port_id[1] << 8) |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bsg_request->rqst_data.h_els.port_id[2];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1833:2: note: here
case FC_BSG_RPT_ELS:
^~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1838:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
port_id = (bsg_request->rqst_data.h_ct.port_id[0] << 16) |
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(bsg_request->rqst_data.h_ct.port_id[1] << 8) |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bsg_request->rqst_data.h_ct.port_id[2];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1841:2: note: here
case FC_BSG_RPT_CT:
^~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The commit de516379e8 ("scsi: megaraid_sas: changes to function
prototypes") introduced a comilation warning due to it changed the function
prototype of read_fw_status_reg() to take an instance pointer instead, but
forgot to remove an unused variable.
drivers/scsi/megaraid/megaraid_sas_fusion.c: In function
'megasas_fusion_update_can_queue':
drivers/scsi/megaraid/megaraid_sas_fusion.c:326:39: warning: variable
'reg_set' set but not used [-Wunused-but-set-variable]
struct megasas_register_set __iomem *reg_set;
^~~~~~~
Fixes: de516379e8 ("scsi: megaraid_sas: changes to function prototypes")
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix sparse warnings:
drivers/scsi/megaraid/megaraid_sas_fusion.c:3369:1: warning: symbol 'complete_cmd_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3535:6: warning: symbol 'megasas_sync_irqs' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3554:1: warning: symbol 'megasas_complete_cmd_dpc_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3573:13: warning: symbol 'megasas_isr_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3604:1: warning: symbol 'build_mpt_mfi_pass_thru' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3661:40: warning: symbol 'build_mpt_cmd' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3688:1: warning: symbol 'megasas_issue_dcmd_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3881:5: warning: symbol 'megasas_wait_for_outstanding_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4005:6: warning: symbol 'megasas_refire_mgmt_cmd' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4525:25: warning: symbol 'megasas_get_peer_instance' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:4825:7: warning: symbol 'megasas_fusion_crash_dump' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Current driver report dev_loss_tmo to 0 for NVMe devices with short cable
pull. This causes NVMe controller to be freed along with NVMe namespace.
The side affect is IO would stop. By not setting dev_loss_tmo to 0, NVMe
namespace would stay until cable is plugged back in. This allows IO to
resume afterward.
[mkp: commit desc]
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A hang was observed in the fcport delete path when the device was
responding slow and an issue-lip path (results in session termination) was
taken.
Fix this by issuing logo requests unconditionally.
PID: 19491 TASK: ffff8e23e67bb150 CPU: 0 COMMAND: "kworker/0:0"
#0 [ffff8e2370297bf8] __schedule at ffffffffb4f7dbb0
#1 [ffff8e2370297c88] schedule at ffffffffb4f7e199
#2 [ffff8e2370297c98] schedule_timeout at ffffffffb4f7ba68
#3 [ffff8e2370297d40] msleep at ffffffffb48ad9ff
#4 [ffff8e2370297d58] qlt_free_session_done at ffffffffc0c32052 [qla2xxx]
#5 [ffff8e2370297e20] process_one_work at ffffffffb48bcfdf
#6 [ffff8e2370297e68] worker_thread at ffffffffb48bdca6
#7 [ffff8e2370297ec8] kthread at ffffffffb48c4f81
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Leverage the generic routine, qla24xx_update_fw_options(), for the
configuration of firmware options for ISP27xx/ISP28xx.
Signed-off-by: Andrew Vasquez <andrewv@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The following sequence of event leads to NVME port disappearing:
- device port shut
- nvme_fc_unregister_remoteport
- device port online
- remote port delete completes
- relogin is scheduled
- "post gidpn" message appears due to rscn generation # mismatch
In short, if a device comes back online sooner than an unregister
completion, a mismatch in rscn generation number occurs, which is not
handled correctly during device relogin. Fix this by starting with a redo
of GNL.
When ql2xextended_error_logging is enabled, the re-plugged device's
discovery stops with the following messages printed:
--8<--
qla2xxx [0000:41:00.0]-480d:3: Relogin scheduled.
qla2xxx [0000:41:00.0]-4800:3: DPC handler sleeping.
qla2xxx [0000:41:00.0]-2902:3: qla24xx_handle_relogin_event 21:00:00:24:ff:17:9e:91 DS 0 LS 7 P 0 del 2 cnfl
(null) rscn 1|2 login 1|2 fl 1
qla2xxx [0000:41:00.0]-28e9:3: qla24xx_handle_relogin_event 1666 21:00:00:24:ff:17:9e:91 post gidpn
qla2xxx [0000:41:00.0]-480e:3: Relogin end.
--8<--
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Current code misses or fails to account for proper recovery during early
initialization failures:
- Properly unwind allocations during probe() failures.
- Protect against non-initialization memory allocations during
unwinding.
- Propagate error status during HW initialization.
- Release SCSI host reference when memory allocations fail.
Signed-off-by: Andrew Vasquez <andrewv@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
when fabric scan thread encounters IOCB Q Full, schedule a delayed work to
retry fabric scan.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For any qla2xxx async command, the SRB buffer is used to send it. In
setting up the SRB buffer, the timer for this command is started before all
memory allocation has finished. Under low memory pressure, memory alloc
can go to sleep and not wake up before the timer expires. Once timer has
expired, the timer thread will access uninitialize fields resulting into
NULL pointer crash.
This patch fixes this crash by moving the start of timer after everything
is setup.
backtrace shows following
PID: 3720 TASK: ffff996928401040 CPU: 0 COMMAND: "qla2xxx_1_dpc"
0 [ffff99652751b698] __schedule at ffffffff965676c7
1 [ffff99652751b728] schedule at ffffffff96567bc9
2 [ffff99652751b738] schedule_timeout at ffffffff965655e8
3 [ffff99652751b7e0] io_schedule_timeout at ffffffff9656726d
4 [ffff99652751b810] congestion_wait at ffffffff95fd8d12
5 [ffff99652751b870] isolate_migratepages_range at ffffffff95fddaf3
6 [ffff99652751b930] compact_zone at ffffffff95fdde96
7 [ffff99652751b980] compact_zone_order at ffffffff95fde0bc
8 [ffff99652751ba20] try_to_compact_pages at ffffffff95fde481
9 [ffff99652751ba80] __alloc_pages_direct_compact at ffffffff9655cc31
10 [ffff99652751bae0] __alloc_pages_slowpath at ffffffff9655d101
11 [ffff99652751bbd0] __alloc_pages_nodemask at ffffffff95fc0e95
12 [ffff99652751bc80] dma_generic_alloc_coherent at ffffffff95e3217f
13 [ffff99652751bcc8] x86_swiotlb_alloc_coherent at ffffffff95e6b7a1
14 [ffff99652751bcf8] qla2x00_rft_id at ffffffffc055b5e0 [qla2xxx]
15 [ffff99652751bd50] qla2x00_loop_resync at ffffffffc0533e71 [qla2xxx]
16 [ffff99652751be68] qla2x00_do_dpc at ffffffffc05210ca [qla2xxx]
PID: 0 TASK: ffffffff96a18480 CPU: 0 COMMAND: "swapper/0"
0 [ffff99652fc03ae0] machine_kexec at ffffffff95e63674
1 [ffff99652fc03b40] __crash_kexec at ffffffff95f1ce12
2 [ffff99652fc03c10] crash_kexec at ffffffff95f1cf00
3 [ffff99652fc03c28] oops_end at ffffffff9656c758
4 [ffff99652fc03c50] no_context at ffffffff9655aa7e
5 [ffff99652fc03ca0] __bad_area_nosemaphore at ffffffff9655ab15
6 [ffff99652fc03cf0] bad_area_nosemaphore at ffffffff9655ac86
7 [ffff99652fc03d00] __do_page_fault at ffffffff9656f6b0
8 [ffff99652fc03d70] do_page_fault at ffffffff9656f915
9 [ffff99652fc03da0] page_fault at ffffffff9656b758
[exception RIP: unknown or invalid address]
RIP: 0000000000000000 RSP: ffff99652fc03e50 RFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff99652b79a600 RCX: ffff99652b79a760
RDX: ffff99652b79a600 RSI: ffffffffc0525ad0 RDI: ffff99652b79a600
RBP: ffff99652fc03e60 R8: ffffffff96a18a18 R9: ffffffff96ee3c00
R10: 0000000000000002 R11: ffff99652fc03de8 R12: ffff99652b79a760
R13: 0000000000000100 R14: ffffffffc0525ad0 R15: ffff99652b79a600
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
10 [ffff99652fc03e50] qla2x00_sp_timeout at ffffffffc0525af8 [qla2xxx]
11 [ffff99652fc03e68] call_timer_fn at ffffffff95ea7f58
12 [ffff99652fc03ea0] run_timer_softirq at ffffffff95eaa3bd
13 [ffff99652fc03f18] __do_softirq at ffffffff95ea0f05
14 [ffff99652fc03f88] call_softirq at ffffffff9657832c
15 [ffff99652fc03fa0] do_softirq at ffffffff95e2e675
16 [ffff99652fc03fc0] irq_exit at ffffffff95ea1285
17 [ffff99652fc03fd8] smp_apic_timer_interrupt at ffffffff965796c8
18 [ffff99652fc03ff0] apic_timer_interrupt at ffffffff96575df2
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Relogin fails to move forward due to scan_state flag indicating device is
not there. Before relogin process, Session delete process accidently
modified the scan_state flag.
[mkp: typos plus corrected Fixes: sha as reported by sfr]
Fixes: 2dee552102 ("scsi: qla2xxx: Fix login state machine freeze")
Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reject eh_{abort|device_reset|target_reset} when rport is being torn down
or chip is down.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Firmware dump captured during LOOP Init error does not yield any
significant information. This patch removes call to trigger firmware dump
collection during Loop Initialization.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For target mode, the default number of Q-Pairs allowed to use is 2. If the
number of Q-Pairs allocated is lower than the default Q-Pairs, then lower
value should be the set as default.
[mkp: typo]
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If an abort times out, the Abort IOCB completion and Abort timer can race
against each other. This patch provides unique error code for timer path to
allow proper cleanup.
[mkp: typo]
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
With debug kernel we see following wanings indicating memory leak.
[28809.523959] WARNING: CPU: 3 PID: 6790 at lib/dma-debug.c:978
dma_debug_device_change+0x166/0x1d0
[28809.523964] pci 0000:0c:00.6: DMA-API: device driver has pending DMA
allocations while released from device [count=5]
[28809.523964] One of leaked entries details: [device
address=0x00000002aefe4000] [size=8208 bytes] [mapped with DMA_BIDIRECTIONAL]
[mapped as coherent]
Fix this by unmapping DMA memory.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We can request task management IOCTL command(MPI2_FUNCTION_SCSI_TASK_MGMT)
to /dev/mpt3ctl. If the given task_type is either abort task or query
task, it may need a field named "Initiator Port Transfer Tag to Manage" in
the IU.
Current code does not support to check target IPTT tag from the tm_request.
This patch introduces to check TaskMID given from the userspace as a target
tag. We have a rule of relationship between
(struct request *req->tag) and smid in mpt3sas_base.c:
3318 u16
3319 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
3320 struct scsi_cmnd *scmd)
3321 {
3322 struct scsiio_tracker *request = scsi_cmd_priv(scmd);
3323 unsigned int tag = scmd->request->tag;
3324 u16 smid;
3325
3326 smid = tag + 1;
So if we want to abort a request tagged #X, then we can pass (X + 1) to
this IOCTL handler. Otherwise, user space just can pass 0 TaskMID to abort
the first outstanding smid which is legacy behaviour.
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: MPT-FusionLinux.pdl@broadcom.com
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings (Building: powerpc allyesconfig):
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c: In function 'ibmvscsis_adapter_info':
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:1582:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (connection_broken(vscsi))
^
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:1584:2: note: here
default:
^~~~~~~
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c: In function 'ibmvscsis_ping_response':
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:2494:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
vscsi->flags |= CLIENT_FAILED;
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:2495:2: note: here
case H_DROPPED:
^~~~
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:2496:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
vscsi->flags |= RESPONSE_Q_DOWN;
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:2497:2: note: here
case H_REMOTE_PARM:
^~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Bryant G. Ly <bly@catalogicsoftware.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings:
drivers/scsi/cxlflash/main.c: In function 'send_afu_cmd':
drivers/scsi/cxlflash/main.c:2347:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (rc) {
^
drivers/scsi/cxlflash/main.c:2357:2: note: here
case -EAGAIN:
^~~~
drivers/scsi/cxlflash/main.c: In function 'term_intr':
drivers/scsi/cxlflash/main.c:754:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (index == PRIMARY_HWQ)
^
drivers/scsi/cxlflash/main.c:756:2: note: here
case UNMAP_TWO:
^~~~
drivers/scsi/cxlflash/main.c:757:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 2, hwq);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/cxlflash/main.c:758:2: note: here
case UNMAP_ONE:
^~~~
drivers/scsi/cxlflash/main.c:759:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 1, hwq);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/cxlflash/main.c:760:2: note: here
case FREE_IRQ:
^~~~
drivers/scsi/cxlflash/main.c: In function 'cxlflash_remove':
drivers/scsi/cxlflash/main.c:975:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
cxlflash_release_chrdev(cfg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/cxlflash/main.c:976:2: note: here
case INIT_STATE_SCSI:
^~~~
drivers/scsi/cxlflash/main.c:978:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
scsi_remove_host(cfg->host);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/cxlflash/main.c:979:2: note: here
case INIT_STATE_AFU:
^~~~
drivers/scsi/cxlflash/main.c:980:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
term_afu(cfg);
^~~~~~~~~~~~~
drivers/scsi/cxlflash/main.c:981:2: note: here
case INIT_STATE_PCI:
^~~~
drivers/scsi/cxlflash/main.c:983:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
pci_disable_device(pdev);
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/cxlflash/main.c:984:2: note: here
case INIT_STATE_NONE:
^~~~
drivers/scsi/cxlflash/main.c: In function 'num_hwqs_store':
drivers/scsi/cxlflash/main.c:3018:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (cfg->state == STATE_NORMAL)
^
drivers/scsi/cxlflash/main.c:3020:2: note: here
default:
^~~~~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Matthew R. Ochs <mrochs@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is a copy and paste bug here. It uses EVENT_TRIGGERS size instead of
SCSI_TRIGGERS size but fortunately both size are 84 bytes so it doesn't
affect runtime.
These days the preferred style is to just say sizeof(object) instead of
sizeof(type) so I have updated the function to the latest style as well.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We can use for_each_set_bit() to slightly simplify the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use vzalloc instead of using vmalloc to allocate memory and then zeroing it
with memset. This simplifies the code.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 1697c6a64c ("scsi: fdomain: Add register definitions") somehow
missed the uses of CFG1_IRQ_MASK in the Futire Domain ISA driver, leaving
the magic numbers intact. Fix this issue (with no change in the generated
object file), removing an excess empty line, while at it...
Fixes: 1697c6a64c ("scsi: fdomain: Add register definitions")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 1697c6a64c ("scsi: fdomain: Add register definitions") somehow
missed the masking of the 'status' variable with the SCSI phase mask in
fdomain_work(), leaving the magic number intact. Fix this issue; while at
it, change the order of BSTAT_{MSG|CMD|IO} bits in the MESSAGE IN
phase *case* (with no change in the generated object file).
Fixes: 1697c6a64c ("scsi: fdomain: Add register definitions")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 1697c6a64c ("scsi: fdomain: Add register definitions") somehow
missed the use of BCTL_RST in fdomain_reset(), leaving the magic number
intact. Fix this issue (with no change in the generated object file).
Fixes: 1697c6a64c ("scsi: fdomain: Add register definitions")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
kmem_cache_destroy() can handle NULL pointer correctly, so there is no need
to check NULL pointer before calling kmem_cache_destroy().
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A null check before dma_pool_destroy is redundant, so remove it. This is
detected by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch is to change msleep() to usleep_range() based on
Documentation/timers/timers-howto.txt. It suggests using usleep_range()
for small msec(1ms - 20ms) since msleep() will often sleep longer than
desired value.
After changing, booting time will be 5ms-10ms faster than before. I
tested this change on two different platforms, one has 5ms faster, another
one is about 10ms. I think this is different on different platform.
Actually, from UFS host side, 1ms-5ms delay is already sufficient for its
initialization of the local UIC layer.
Fixes: 7a3e97b0dc ([SCSI] ufshcd: UFS Host controller driver)
Signed-off-by: Bean Huo <beanhuo@micron.com>
Acked-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A null check before a kfree is redundant, so remove it. This is detected
by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Adding the command and kicking the virtqueue so far was done one after
another. Make the kick optional, so that we can take into account
SCMD_LAST. We also need a commit_rqs callback to kick the device if
blk-mq aborts the submission before the last request is reached.
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This allows a list of requests to be issued, with the LLD only writing the
hardware doorbell when necessary, after the last request was prepared.
This is more efficient if we have lists of requests to issue, particularly
on virtualized hardware, where writing the doorbell is more expensive than
on real hardware.
The use case for this is plugged IO, where blk-mq flushes a batch of
requests all at once.
The API is the same as for blk-mq, just with blk-mq concepts tweaked to
fit the SCSI subsystem API: the "last" flag in blk_mq_queue_data becomes a
flag in scsi_cmnd, while the queue_num in the commit_rqs callback is
extracted from the hctx and passed as a parameter.
The only complication is that blk-mq uses different plugging heuristics
depending on whether commit_rqs is present or not. So we have two
different sets of blk_mq_ops and pick one depending on whether the
scsi_host template uses commit_rqs or not.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added 'WITH Linux-syscall-note' exception which is the officially assigned
exception identifier for the kernel syscall exception. This exception
makes it possible to include GPL headers into non GPL code without
confusing license compliance tools.
Fixes: a851b2bd36 (scsi: uapi: ufs: Make utp_upiu_req visible to user space)
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Pedro Sousa <pedrom.sousa@synopsys.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently only "interrupt-based" errors have their own history, however
there are some "non-interrupt-based" errors or events which need history
to improve debugging or help know the health status of UFS devices.
Example of fatal errors:
- Link startup error
- Suspend error
- Resume error
Example of abnormal events:
- Task or request abort
- Device reset (now equals to Logical Unit Reset)
- Host reset
This patch tries to track above errors and events by existed UFS error
history mechanism.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently UFS error history will be reset and lost during host reset flow
by ufschd_probe_hba().
Avoid resetting it so error history can be kept as complete as possible to
improve debugging.
In addition, fix a minor display error in ufshcd_print_err_hist().
[mkp: commit desc clarification]
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Provide more information about fatal and auto-hibern8 errors to improve
debugging by extending existing UFS error history framework.
[mkp: typos]
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove "uic" term in below error history functions and structures for more
general usages,
struct ufs_uic_err_reg_hist;
void ufshcd_update_uic_reg_hist(struct ufs_uic_err_reg_hist *reg_hist,
u32 reg);
void ufshcd_print_uic_err_hist(struct ufs_hba *hba,
struct ufs_uic)err_reg_hist *err_hist, char *err_name);
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix several warnings/errors in validation of binding schemas.
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Merge tag 'devicetree-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
"Fix several warnings/errors in validation of binding schemas"
* tag 'devicetree-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: pinctrl: stm32: Fix missing 'clocks' property in examples
dt-bindings: iio: ad7124: Fix dtc warnings in example
dt-bindings: iio: avia-hx711: Fix avdd-supply typo in example
dt-bindings: pinctrl: aspeed: Fix AST2500 example errors
dt-bindings: pinctrl: aspeed: Fix 'compatible' schema errors
dt-bindings: riscv: Limit cpus schema to only check RiscV 'cpu' nodes
dt-bindings: Ensure child nodes are of type 'object'
Pull vfs documentation typo fix from Al Viro.
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
typo fix: it's d_make_root, not d_make_inode...
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Merge tag '5.3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Two fixes for stable, one that had dependency on earlier patch in this
merge window and can now go in, and a perf improvement in SMB3 open"
* tag '5.3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal module number
cifs: flush before set-info if we have writeable handles
smb3: optimize open to not send query file internal info
cifs: copy_file_range needs to strip setuid bits and update timestamps
CIFS: fix deadlock in cached root handling
The commit b3aa14f022 ("iommu: remove the mapping_error dma_map_ops
method") incorrectly changed the checking from dma_ops_alloc_iova() in
map_sg() causes a crash under memory pressure as dma_ops_alloc_iova()
never return DMA_MAPPING_ERROR on failure but 0, so the error handling
is all wrong.
kernel BUG at drivers/iommu/iova.c:801!
Workqueue: kblockd blk_mq_run_work_fn
RIP: 0010:iova_magazine_free_pfns+0x7d/0xc0
Call Trace:
free_cpu_cached_iovas+0xbd/0x150
alloc_iova_fast+0x8c/0xba
dma_ops_alloc_iova.isra.6+0x65/0xa0
map_sg+0x8c/0x2a0
scsi_dma_map+0xc6/0x160
pqi_aio_submit_io+0x1f6/0x440 [smartpqi]
pqi_scsi_queue_command+0x90c/0xdd0 [smartpqi]
scsi_queue_rq+0x79c/0x1200
blk_mq_dispatch_rq_list+0x4dc/0xb70
blk_mq_sched_dispatch_requests+0x249/0x310
__blk_mq_run_hw_queue+0x128/0x200
blk_mq_run_work_fn+0x27/0x30
process_one_work+0x522/0xa10
worker_thread+0x63/0x5b0
kthread+0x1d2/0x1f0
ret_from_fork+0x22/0x40
Fixes: b3aa14f022 ("iommu: remove the mapping_error dma_map_ops method")
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The hexagon implementation pte_alloc_one(), pte_alloc_one_kernel(),
pte_free_kernel() and pte_free() is identical to the generic except of
lack of __GFP_ACCOUNT for the user PTEs allocation.
Switch hexagon to use generic version of these functions.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
to test and use this feature in the NTB transport layer. Also, bug
fixes for the AMD and Switchtec drivers, as well as some general
patches.
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Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"New feature to add support for NTB virtual MSI interrupts, the ability
to test and use this feature in the NTB transport layer.
Also, bug fixes for the AMD and Switchtec drivers, as well as some
general patches"
* tag 'ntb-5.3' of git://github.com/jonmason/ntb: (22 commits)
NTB: Describe the ntb_msi_test client in the documentation.
NTB: Add MSI interrupt support to ntb_transport
NTB: Add ntb_msi_test support to ntb_test
NTB: Introduce NTB MSI Test Client
NTB: Introduce MSI library
NTB: Rename ntb.c to support multiple source files in the module
NTB: Introduce functions to calculate multi-port resource index
NTB: Introduce helper functions to calculate logical port number
PCI/switchtec: Add module parameter to request more interrupts
PCI/MSI: Support allocating virtual MSI interrupts
ntb_hw_switchtec: Fix setup MW with failure bug
ntb_hw_switchtec: Skip unnecessary re-setup of shared memory window for crosslink case
ntb_hw_switchtec: Remove redundant steps of switchtec_ntb_reinit_peer() function
NTB: correct ntb_dev_ops and ntb_dev comment typos
NTB: amd: Silence shift wrapping warning in amd_ntb_db_vector_mask()
ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()
NTB: ntb_transport: Ensure qp->tx_mw_dma_addr is initaliazed
NTB: ntb_hw_amd: set peer limit register
NTB: ntb_perf: Clear stale values in doorbell and command SPAD register
NTB: ntb_perf: Disable NTB link after clearing peer XLAT registers
...
Now that examples are validated against the DT schema, an error with
required 'clocks' property missing is exposed:
Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.example.dt.yaml: \
pinctrl@40020000: gpio@0: 'clocks' is a required property
Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.example.dt.yaml: \
pinctrl@50020000: gpio@1000: 'clocks' is a required property
Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.example.dt.yaml: \
pinctrl@50020000: gpio@2000: 'clocks' is a required property
Add the missing 'clocks' properties to the examples to fix the errors.
Fixes: 2c9239c125 ("dt-bindings: pinctrl: Convert stm32 pinctrl bindings to json-schema")
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
With the conversion to DT schema, the examples are now compiled with
dtc. The ad7124 binding example has the following warning:
Documentation/devicetree/bindings/iio/adc/adi,ad7124.example.dts:19.11-21: \
Warning (reg_format): /example-0/adc@0:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)
There's a default #size-cells and #address-cells values of 1 for
examples. For examples needing different values such as this one on a
SPI bus, they need to provide a SPI bus parent node.
Fixes: 26ae15e62d ("Convert AD7124 bindings documentation to YAML format.")
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>