Commit Graph

49 Commits

Author SHA1 Message Date
Linus Torvalds
2c8c9aae44 SCSI misc on 20250730
Smaller set of driver updates than usual (ufs, lpfc, mpi3mr).  The
 rest (including the core file changes) are doc updates and some minor
 bug fixes.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Smaller set of driver updates than usual (ufs, lpfc, mpi3mr).

  The rest (including the core file changes) are doc updates and some
  minor bug fixes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (49 commits)
  scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated
  scsi: scsi_transport_fc: Add comments to describe added 'rport' parameter
  scsi: bfa: Double-free fix
  scsi: isci: Fix dma_unmap_sg() nents value
  scsi: mvsas: Fix dma_unmap_sg() nents value
  scsi: elx: efct: Fix dma_unmap_sg() nents value
  scsi: scsi_transport_fc: Change to use per-rport devloss_work_q
  scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE
  scsi: core: Fix kernel doc for scsi_track_queue_full()
  scsi: ibmvscsi_tgt: Fix dma_unmap_sg() nents value
  scsi: ibmvscsi_tgt: Fix typo in comment
  scsi: mpi3mr: Update driver version to 8.14.0.5.50
  scsi: mpi3mr: Serialize admin queue BAR writes on 32-bit systems
  scsi: mpi3mr: Drop unnecessary volatile from __iomem pointers
  scsi: mpi3mr: Fix race between config read submit and interrupt completion
  scsi: ufs: ufs-qcom: Enable QUnipro Internal Clock Gating
  scsi: ufs: core: Add ufshcd_dme_rmw() to modify DME attributes
  scsi: ufs: ufs-qcom: Update esi_vec_mask for HW major version >= 6
  scsi: core: Use scsi_cmd_priv() instead of open-coding it
  scsi: qla2xxx: Remove firmware URL
  ...
2025-07-31 12:13:53 -07:00
Thomas Fourier
3a988d0b65 scsi: elx: efct: Fix dma_unmap_sg() nents value
The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.

Fixes: 692e5d73a8 ("scsi: elx: efct: LIO backend interface routines")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://lore.kernel.org/r/20250627114117.188480-2-fourier.thomas@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-14 20:57:13 -04:00
Vitaliy Shevtsov
2a8a5a5dd0 scsi: elx: efct: Fix memory leak in efct_hw_parse_filter()
strsep() modifies the address of the pointer passed to it so that it no
longer points to the original address. This means kfree() gets the wrong
pointer.

Fix this by passing unmodified pointer returned from kstrdup() to
kfree().

Found by Linux Verification Center (linuxtesting.org) with Svace.

Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Signed-off-by: Vitaliy Shevtsov <v.shevtsov@mt-integration.ru>
Link: https://lore.kernel.org/r/20250612163616.24298-1-v.shevtsov@mt-integration.ru
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-16 17:52:05 -04:00
Ingo Molnar
41cb08555c treewide, timers: Rename from_timer() to timer_container_of()
Move this API to the canonical timer_*() namespace.

[ tglx: Redone against pre rc1 ]

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
2025-06-08 09:07:37 +02:00
Thomas Gleixner
8fa7292fee treewide: Switch/rename to timer_delete[_sync]()
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.

Conversion was done with coccinelle plus manual fixups where necessary.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-04-05 10:30:12 +02:00
Christophe JAILLET
14807b4a4e scsi: Constify struct pci_error_handlers
'struct pci_error_handlers' are not modified in these drivers.

Constifying these structures moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  39049	   6429	    112	  45590	   b216	drivers/scsi/aacraid/linit.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  39113	   6365	    112	  45590	   b216	drivers/scsi/aacraid/linit.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/efdec8425981e10fc398fa2ac599c9c45d930561.1737318548.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-02-03 17:35:58 -05:00
Christophe JAILLET
c9a71ca13f scsi: Constify struct pci_device_id
'struct pci_device_id' is not modified in these drivers.

Constifying this structure moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  70237	   9137	    320	  79694	  1374e	drivers/scsi/3w-9xxx.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  70461	   8913	    320	  79694	  1374e	drivers/scsi/3w-9xxx.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/fc61b1946488c1ea8f7a17a06cf40fbd05dcc6de.1733590049.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-12-09 21:59:52 -05:00
Bart Van Assche
b97c0741c7 scsi: Expand all create*_workqueue() invocations
The workqueue maintainer wants to remove the create*_workqueue() macros
because these macros always set the WQ_MEM_RECLAIM flag and because these
only support literal workqueue names. Hence this patch that replaces the
create*_workqueue() invocations with the definition of this macro. The
WQ_MEM_RECLAIM flag has been retained because I think that flag is necessary
for workqueues created by storage drivers. This patch has been generated by
running spatch and git clang-format. spatch has been invoked as follows:

spatch --in-place --sp-file expand-create-workqueue.spatch $(git grep -lEw 'create_(freezable_|singlethread_|)workqueue' */scsi */ufs)

The contents of the expand-create-workqueue.spatch file is as follows:

@@
expression name;
@@
-create_workqueue(name)
+alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, name)
@@
expression name;
@@
-create_freezable_workqueue(name)
+alloc_workqueue("%s", WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, 1, name)
@@
expression name;
@@
-create_singlethread_workqueue(name)
+alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name)

Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240822195944.654691-2-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-08-22 21:28:55 -04:00
Jeff Johnson
95f8bf932b scsi: Add missing MODULE_DESCRIPTION() macros
On x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/scsi_common.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/advansys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/BusLogic.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/aha1740.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/isci/isci.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/elx/efct.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/atp870u.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/ppa.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/scsi/imm.o

Add all missing invocations of the MODULE_DESCRIPTION() macro.

This updates all files which have a MODULE_LICENSE() but which do not have
a MODULE_DESCRIPTION(), even ones which did not produce the x86
allmodconfig warnings.

Acked-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240610-md-drivers-scsi-v3-1-055da78d66b2@quicinc.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-06-11 21:33:58 -04:00
Mike Christie
194605d45d scsi: target: Have drivers report if they support direct submissions
In some cases, like with multiple LUN targets or where the target has to
respond to transport level requests from the receiving context it can be
better to defer cmd submission to a helper thread. If the backend driver
blocks on something like request/tag allocation it can block the entire
target submission path and other LUs and transport IO on that session.

In other cases like single LUN targets with storage that can support all
the commands that the target can queue, then it's best to submit the cmd
to the backend from the target's cmd receiving context.

Subsequent commits will allow the user to config what they prefer, but
drivers like loop can't directly submit because they can be called from a
context that can't sleep. And, drivers like vhost-scsi can support direct
submission, but need to keep their default behavior of deferring execution
to avoid possible regressions where the backend can block.

Make the drivers tell LIO core if they support direct submissions and their
current default, so we can prevent users from misconfiguring the system and
initialize devices correctly.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20230928020907.5730-2-michael.christie@oracle.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-10-13 15:53:57 -04:00
Martin K. Petersen
62d15dba0a Merge patch series "Constify most SCSI host templates"
Bart Van Assche <bvanassche@acm.org> says:

It helps humans and the compiler if it is made explicit that SCSI host
templates are not modified. Hence this patch series that constifies most
SCSI host templates. Please consider this patch series for the next merge
window.

Link: https://lore.kernel.org/r/20230322195515.1267197-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-24 20:13:03 -04:00
Bart Van Assche
67791ce19f scsi: elx: efct: Declare SCSI host template const
Make it explicit that the SCSI host template is not modified.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230322195515.1267197-33-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-24 19:19:22 -04:00
Dmitry Bogdanov
df02beb9af scsi: efct: Remove default fabric ops callouts
Remove callouts that are identical to the default implementations in TCM
Core.

Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Link: https://lore.kernel.org/r/20230313181110.20566-12-d.bogdanov@yadro.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-16 23:36:37 -04:00
Chen Zhongjin
bb0cd225dd scsi: efct: Fix possible memleak in efct_device_init()
In efct_device_init(), when efct_scsi_reg_fc_transport() fails,
efct_scsi_tgt_driver_exit() is not called to release memory for
efct_scsi_tgt_driver_init() and causes memleak:

unreferenced object 0xffff8881020ce000 (size 2048):
  comm "modprobe", pid 465, jiffies 4294928222 (age 55.872s)
  backtrace:
    [<0000000021a1ef1b>] kmalloc_trace+0x27/0x110
    [<000000004c3ed51c>] target_register_template+0x4fd/0x7b0 [target_core_mod]
    [<00000000f3393296>] efct_scsi_tgt_driver_init+0x18/0x50 [efct]
    [<00000000115de533>] 0xffffffffc0d90011
    [<00000000d608f646>] do_one_initcall+0xd0/0x4e0
    [<0000000067828cf1>] do_init_module+0x1cc/0x6a0
    ...

Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221111074046.57061-1-chenzhongjin@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-25 23:50:35 +00:00
Haowen Bai
d627660c22 scsi: elx: efct: Remove NULL check after calling container_of()
container_of() will never return NULL.

Link: https://lore.kernel.org/r/1652750737-22673-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19 20:16:27 -04:00
Harshit Mogalapalli
e79aaa9cc0 scsi: elx: efct: Remove redundant memset() statement
As memset() of bmbx is immediately followed by a memcpy() where bmbx is the
destination, the memset() is redundant.

Link: https://lore.kernel.org/r/20220505143703.45441-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19 20:16:26 -04:00
Wan Jiabing
507bd398a0 scsi: elx: efct: Remove unnecessary memset() in efct_io()
io->sgl is allocated by kzalloc(). The memory is set to zero.
It is unnecessary to call memset again.

Link: https://lore.kernel.org/r/20220318145230.1031-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:28:25 -04:00
Christophe JAILLET
1aa7d9799e scsi: efct: Remove useless DMA-32 fallback configuration
As stated in [1], dma_set_mask() with a 64-bit mask never fails if
dev->dma_mask is non-NULL.  So, if it fails, the 32 bits case will also
fail for the same reason.

Simplify code and remove some dead code accordingly.

While at it, return the error code returned by dma_set_mask_and_coherent()
instead of -1.

[1]: https://lkml.org/lkml/2021/6/7/398

Link: https://lore.kernel.org/r/958bcb2a6e86344c14f38369e8e7079615a2b0e3.1641754613.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-10 10:37:02 -05:00
Christoph Hellwig
efac162a4e scsi: efct: Don't pass GFP_DMA to dma_alloc_coherent()
dma_alloc_coherent() ignores the zone specifiers so this is pointless and
confusing.

Link: https://lore.kernel.org/r/20211214163605.416288-1-hch@lst.de
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-16 22:52:29 -05:00
Martin K. Petersen
ec65e6beb0 Merge branch '5.15/scsi-fixes' into 5.16/scsi-staging
Merge the 5.15/scsi-fixes branch into the staging tree to resolve UFS
conflict reported by sfr.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-12 11:58:12 -04:00
Dan Carpenter
a013c71c63 scsi: elx: efct: Delete stray unlock statement
It's not holding the lock at this stage and the IRQ "flags" are not correct
so it would restore something bogus. Delete the unlock statement.

Link: https://lore.kernel.org/r/20211004103851.GE25015@kili
Fixes: 3e6414003b ("scsi: elx: efct: SCSI I/O handling routines")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-04 23:33:31 -04:00
Christophe JAILLET
ca4ff9e751 scsi: elx: efct: Switch from 'pci_' to 'dma_' API
The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below.

It has been hand modified to use 'dma_set_mask_and_coherent()' instead of
'pci_set_dma_mask()/pci_set_consistent_dma_mask()' when applicable.
This is less verbose.

It has been compile tested.

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Link: https://lore.kernel.org/r/3899b1ed4abac581c30845d82f33ec6df8b38976.1629633207.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-28 23:39:23 -04:00
Dmitry Bogdanov
e76b7c5e25 scsi: efct: Decrease area under spinlock
Under the session level spinlock node->active_ios_lock in
efct_scsi_io_alloc() we are taking another spinlock for the port.  This
leads to contention between sessions and even between I/Os in the same
session.

Reduce the locked region to active_ios list for which active_ios_lock is
intended. Spinlock CPU usage decreases from 18% down to 13%. IOPS are
increased from 220 kIOPS to 264 kIOPS for one LUN.

Link: https://lore.kernel.org/r/20210914105539.6942-4-d.bogdanov@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-22 00:04:56 -04:00
James Smart
450907424d scsi: elx: efct: Do not hold lock while calling fc_vport_terminate()
Smatch checker reported the following error:

  drivers/base/power/sysfs.c:833 dpm_sysfs_remove()
  warn: sleeping in atomic context

With a calling sequence of:

  efct_lio_npiv_drop_nport() <- disables preempt
  -> fc_vport_terminate()
     -> device_del()
        -> dpm_sysfs_remove()

Issue is efct_lio_npiv_drop_nport() is making the fc_vport_terminate() call
while holding a lock w/ ipl raised.

It is unnecessary to hold the lock over this call, shift where the lock is
taken.

Link: https://lore.kernel.org/r/20210907165225.10821-1-jsmart2021@gmail.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13 22:15:46 -04:00
Linus Torvalds
b250e6d141 Kbuild updates for v5.15
- Add -s option (strict mode) to merge_config.sh to make it fail when
    any symbol is redefined.
 
  - Show a warning if a different compiler is used for building external
    modules.
 
  - Infer --target from ARCH for CC=clang to let you cross-compile the
    kernel without CROSS_COMPILE.
 
  - Make the integrated assembler default (LLVM_IAS=1) for CC=clang.
 
  - Add <linux/stdarg.h> to the kernel source instead of borrowing
    <stdarg.h> from the compiler.
 
  - Add Nick Desaulniers as a Kbuild reviewer.
 
  - Drop stale cc-option tests.
 
  - Fix the combination of CONFIG_TRIM_UNUSED_KSYMS and CONFIG_LTO_CLANG
    to handle symbols in inline assembly.
 
  - Show a warning if 'FORCE' is missing for if_changed rules.
 
  - Various cleanups
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Merge tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Add -s option (strict mode) to merge_config.sh to make it fail when
   any symbol is redefined.

 - Show a warning if a different compiler is used for building external
   modules.

 - Infer --target from ARCH for CC=clang to let you cross-compile the
   kernel without CROSS_COMPILE.

 - Make the integrated assembler default (LLVM_IAS=1) for CC=clang.

 - Add <linux/stdarg.h> to the kernel source instead of borrowing
   <stdarg.h> from the compiler.

 - Add Nick Desaulniers as a Kbuild reviewer.

 - Drop stale cc-option tests.

 - Fix the combination of CONFIG_TRIM_UNUSED_KSYMS and CONFIG_LTO_CLANG
   to handle symbols in inline assembly.

 - Show a warning if 'FORCE' is missing for if_changed rules.

 - Various cleanups

* tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits)
  kbuild: redo fake deps at include/ksym/*.h
  kbuild: clean up objtool_args slightly
  modpost: get the *.mod file path more simply
  checkkconfigsymbols.py: Fix the '--ignore' option
  kbuild: merge vmlinux_link() between ARCH=um and other architectures
  kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh
  kbuild: merge vmlinux_link() between the ordinary link and Clang LTO
  kbuild: remove stale *.symversions
  kbuild: remove unused quiet_cmd_update_lto_symversions
  gen_compile_commands: extract compiler command from a series of commands
  x86: remove cc-option-yn test for -mtune=
  arc: replace cc-option-yn uses with cc-option
  s390: replace cc-option-yn uses with cc-option
  ia64: move core-y in arch/ia64/Makefile to arch/ia64/Kbuild
  sparc: move the install rule to arch/sparc/Makefile
  security: remove unneeded subdir-$(CONFIG_...)
  kbuild: sh: remove unused install script
  kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y
  kbuild: Switch to 'f' variants of integrated assembler flag
  kbuild: Shuffle blank line to improve comment meaning
  ...
2021-09-03 15:33:47 -07:00
Alexey Dobriyan
39f75da7bc isystem: trim/fixup stdarg.h and other headers
Delete/fixup few includes in anticipation of global -isystem compile
option removal.

Note: crypto/aegis128-neon-inner.c keeps <stddef.h> due to redefinition
of uintptr_t error (one definition comes from <stddef.h>, another from
<linux/types.h>).

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-08-19 09:02:55 +09:00
Colin Ian King
e71dd41ea0 scsi: elx: efct: Remove redundant initialization of variable 'ret'
The variable 'ret' is being initialized with a value that is never read, it
is being updated later on. The assignment is redundant and can be removed.

Link: https://lore.kernel.org/r/20210804132451.113086-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
2021-08-09 23:41:19 -04:00
James Smart
f7c95d7460 scsi: elx: efct: Fix vport list linkage in LIO backend
vport is linked onto the driver's vport list at allocation, but failure
path fails to remove it from the list.

Change location of linkage until after complete vport completion.

Link: https://lore.kernel.org/r/20210619155729.20049-1-jsmart2021@gmail.com
Fixes: 692e5d73a8 ("scsi: elx: efct: LIO backend interface routines")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 21:11:37 -04:00
James Smart
ae3272ec5e scsi: elx: efct: Fix pointer error checking in debugfs init
debugfs_create_xxx routines, which return pointers, are being checked for
error by looking for NULL values. The routines may return pointer-munged
-Exxx codes, so they should be using IS_ERR() to adapt.

There are two cases:

 - The first case is on initial directory creation, which actually doesn't
   need to be checked. So remove the check.

 - Creation of the sessions subdirectory. Modify this creation to create
   under the initial directory created, and fix failure check.

Link: https://lore.kernel.org/r/20210618233004.83769-1-jsmart2021@gmail.com
Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:04 -04:00
James Smart
ca7f33c6b4 scsi: elx: efct: Fix is_originator return code type
efct_hw_iotype_is_originator() is returning a negative (-EIO) status which
doesn't make sense for a u8 function type.

Reviewing the code, the function only needs to return true/false, thus a
bool status is most appropriate.

Change the function return type and patch up the one callee as the bool
inverses the if check.

Link: https://lore.kernel.org/r/20210618231524.83179-1-jsmart2021@gmail.com
Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:04 -04:00
James Smart
d66a65b7f5 scsi: elx: efct: Fix link error for _bad_cmpxchg
cmpxchg is being used on a bool type, which is requiring architecture
support that isn't compatible with a bool.

Convert variable abort_in_progress from bool to int.

Link: https://lore.kernel.org/r/20210618174050.80302-1-jsmart2021@gmail.com
Fixes: ebc076b3ed ("scsi: elx: efct: Tie into kernel Kconfig and build process")
Reported-by: kernel test robot <lkp@intel.com>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:04 -04:00
Nathan Chancellor
0d7be7a8a0 scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel()
clang warns:

drivers/scsi/elx/efct/efct_hw.c:1523:17: warning: address of array
'ctx->buf' will always evaluate to 'true' [-Wpointer-bool-conversion]
                              (!ctx->buf ? U32_MAX : *((u32 *)ctx->buf)));
                               ~~~~~~^~~

buf is an array in the middle of a struct so deferencing it is not a
problem as long as ctx is not NULL. Eliminate the check, which fixes the
warning.

Link: https://github.com/ClangBuiltLinux/linux/issues/1398
Link: https://lore.kernel.org/r/20210617063123.21239-1-nathan@kernel.org
Fixes: 580c0255e4 ("scsi: elx: efct: RQ buffer, memory pool allocation and deallocation APIs")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:04 -04:00
Nathan Chancellor
a255036178 scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session()
clang warns:

drivers/scsi/elx/efct/efct_lio.c:1216:24: warning: variable 'id' is
uninitialized when used here [-Wuninitialized]
                      se_sess, node, id);
                                     ^~

Shuffle the debug print after id's initialization so that the actual value
is printed.

Link: https://github.com/ClangBuiltLinux/linux/issues/1397
Link: https://lore.kernel.org/r/20210617061721.2405511-1-nathan@kernel.org
Fixes: 692e5d73a8 ("scsi: elx: efct: LIO backend interface routines")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:04 -04:00
Wei Yongjun
41962aba2d scsi: elx: efct: Fix error handling in efct_hw_init()
Fix to return negative error code -ENOMEM from the error handling case
instead of 0. Also fix typo in error message.

Link: https://lore.kernel.org/r/20210617024837.1023069-1-weiyongjun1@huawei.com
Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:03 -04:00
Colin Ian King
61bf3fdb5d scsi: elx: efct: Remove redundant initialization of variable lun
The variable "lun" is being initialized with a value that is never read, it
is being updated later on. The assignment is redundant and can be removed.

Link: https://lore.kernel.org/r/20210616171621.16176-1-colin.king@canonical.com
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
2021-06-18 23:01:03 -04:00
Colin Ian King
5911429343 scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected"
There is a spelling mistake in a efc_log_info message. Fix it.

Link: https://lore.kernel.org/r/20210616142637.12706-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:03 -04:00
James Smart
32ddbad5b6 scsi: elx: efct: Transport class host interface support
Integration with the scsi_fc_transport host interfaces.

Link: https://lore.kernel.org/r/20210601235512.20104-30-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
ab332fcbcd scsi: elx: efct: Transport and hardware teardown routines
Implement routines to detach transport and hardware objects.

Link: https://lore.kernel.org/r/20210601235512.20104-29-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
6ae7147bfe scsi: elx: efct: Link and host statistics
Add routines to retrieve link stats and host stats, add firmware update
helper routines.

Link: https://lore.kernel.org/r/20210601235512.20104-28-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
dd53d333aa scsi: elx: efct: Hardware I/O submission routines
Routines that write I/O to work queue, send SRRs and raw frames.

Link: https://lore.kernel.org/r/20210601235512.20104-27-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
692e5d73a8 scsi: elx: efct: LIO backend interface routines
Add LIO backend template registration and template functions.

Link: https://lore.kernel.org/r/20210601235512.20104-26-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
3e6414003b scsi: elx: efct: SCSI I/O handling routines
Routines for SCSI transport IO alloc, build and send I/O.

Link: https://lore.kernel.org/r/20210601235512.20104-25-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
f45ae6aac0 scsi: elx: efct: Unsolicited FC frame processing routines
Add routines to handle unsolicited FC frames.

Link: https://lore.kernel.org/r/20210601235512.20104-24-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:32 -04:00
James Smart
e2cf422ba8 scsi: elx: efct: Hardware queues processing
Add driver definitions for:

 - Routines for EQ, CQ, WQ and RQ processing.

 - Routines for I/O object pool allocation and deallocation.

Link: https://lore.kernel.org/r/20210601235512.20104-23-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:31 -04:00
James Smart
63de51327a scsi: elx: efct: Hardware I/O and SGL initialization
Add driver definitions for:

 - Routines to create I/O interfaces (wqs, etc), SGL initialization, and
   configure hardware features.

Link: https://lore.kernel.org/r/20210601235512.20104-22-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:31 -04:00
James Smart
580c0255e4 scsi: elx: efct: RQ buffer, memory pool allocation and deallocation APIs
Add driver definitions for:

 - RQ data buffer allocation and deallocate.

 - Memory pool allocation and deallocation APIs.

 - Mailbox command submission and completion routines.

Link: https://lore.kernel.org/r/20210601235512.20104-21-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:31 -04:00
James Smart
e10fc23359 scsi: elx: efct: Hardware queue creation and deletion
Add routines for queue creation, deletion, and configuration.

Link: https://lore.kernel.org/r/20210601235512.20104-20-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:31 -04:00
James Smart
4df84e8466 scsi: elx: efct: Driver initialization routines
Add driver definitions for:

 - Emulex FC Target driver init, attach and hardware setup routines.

Link: https://lore.kernel.org/r/20210601235512.20104-19-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:31 -04:00
James Smart
75a10a7a91 scsi: elx: efct: Data structures and defines for hw operations
Start the population of the efct target mode driver.  The driver is
contained in the drivers/scsi/elx/efct subdirectory.

Create the efct directory and start population of the driver by adding
SLI-4 configuration parameters, data structures for configuring SLI-4
queues, converting from OS to SLI-4 IO requests, and handling async events.

Link: https://lore.kernel.org/r/20210601235512.20104-18-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:31 -04:00