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2020-10-01scsi: libfc: Skip additional kref updating work eventJaved Hasan1-4/+5
[ Upstream commit 823a65409c8990f64c5693af98ce0e7819975cba ] When an rport event (RPORT_EV_READY) is updated without work being queued, avoid taking an additional reference. This issue was leading to memory leak. Trace from KMEMLEAK tool: unreferenced object 0xffff8888259e8780 (size 512): comm "kworker/2:1", 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] [<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 RPORT_EV_READY and RPORT_EV_STOP back to back, which lead to overwrite the event RPORT_EV_READY by event RPORT_EV_STOP. Because of this, kref_count gets incremented by 1. kernel: host0: rport fffce5: Received PLOGI request kernel: host0: rport fffce5: Received PLOGI in INIT state kernel: host0: rport fffce5: Port is Ready kernel: host0: rport fffce5: Received PRLI request while in state Ready kernel: host0: rport fffce5: PRLI rspp type 8 active 1 passive 0 kernel: host0: rport fffce5: Received LOGO request while in state Ready kernel: host0: rport fffce5: Delete port kernel: host0: rport fffce5: Received PLOGI request kernel: host0: rport fffce5: Received PLOGI in state Delete - send busy kernel: host0: rport fffce5: work event 3 kernel: host0: rport fffce5: lld callback ev 3 kernel: host0: rport fffce5: work delete Link: https://lore.kernel.org/r/20200626094959.32151-1-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> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01scsi: libfc: Handling of extra krefJaved Hasan1-1/+3
[ Upstream commit 71f2bf85e90d938d4a9ef9dd9bfa8d9b0b6a03f7 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-23scsi: libfc: Fix for double free()Javed Hasan1-2/+0
[ Upstream commit 5a5b80f98534416b3b253859897e2ba1dc241e70 ] Fix for '&fp->skb' double free. Link: https://lore.kernel.org/r/20200825093940.19612-1-jhasan@marvell.com Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Javed Hasan <jhasan@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-26scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid casesJaved Hasan1-3/+9
[ Upstream commit ec007ef40abb6a164d148b0dc19789a7a2de2cc8 ] In fc_disc_gpn_id_resp(), skb is supposed to get freed in all cases except for PTR_ERR. However, in some cases it didn't. This fix is to call fc_frame_free(fp) before function returns. Link: https://lore.kernel.org/r/20200729081824.30996-2-jhasan@marvell.com Reviewed-by: Girish Basrur <gbasrur@marvell.com> Reviewed-by: Santosh Vernekar <svernekar@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> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-20scsi: libfc: free response frame from GPN_IDIgor Druzhinin1-0/+2
[ Upstream commit ff6993bb79b9f99bdac0b5378169052931b65432 ] fc_disc_gpn_id_resp() should be the last function using it so free it here to avoid memory leak. Link: https://lore.kernel.org/r/1579013000-14570-2-git-send-email-igor.druzhinin@citrix.com Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-27scsi: libfc: fix null pointer dereference on a null lportColin Ian King1-1/+1
[ Upstream commit 41a6bf6529edd10a6def42e3b2c34a7474bcc2f5 ] Currently if lport is null then the null lport pointer is dereference when printing out debug via the FC_LPORT_DB macro. Fix this by using the more generic FC_LIBFC_DBG debug macro instead that does not use lport. Addresses-Coverity: ("Dereference after null check") Fixes: 7414705ea4ae ("libfc: Add runtime debugging with debug_logging module parameter") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-09scsi: fcoe: Embed fc_rport_priv in fcoe_rport structureHannes Reinecke1-1/+4
commit 023358b136d490ca91735ac6490db3741af5a8bd upstream. Gcc-9 complains for a memset across pointer boundaries, which happens as the code tries to allocate a flexible array on the stack. Turns out we cannot do this without relying on gcc-isms, so with this patch we'll embed the fc_rport_priv structure into fcoe_rport, can use the normal 'container_of' outcast, and will only have to do a memset over one structure. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-27Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO"Saurav Kashyap1-1/+0
commit 0228034d8e5915b98c33db35a98f5e909e848ae9 upstream. This patch clears FC_RP_STARTED flag during logoff, because of this re-login(flogi) didn't happen to the switch. This reverts commit 1550ec458e0cf1a40a170ab1f4c46e3f52860f65. Fixes: 1550ec458e0c ("scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO") Cc: <stable@vger.kernel.org> # v4.18+ Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Reviewed-by: Hannes Reinecke <hare@#suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-14scsi: libfc: free skb when receiving invalid flogi respMing Lu1-3/+3
[ Upstream commit 5d8fc4a9f0eec20b6c07895022a6bea3fb6dfb38 ] The issue to be fixed in this commit is when libfc found it received a invalid FLOGI response from FC switch, it would return without freeing the fc frame, which is just the skb data. This would cause memory leak if FC switch keeps sending invalid FLOGI responses. This fix is just to make it execute `fc_frame_free(fp)` before returning from function `fc_lport_flogi_resp`. Signed-off-by: Ming Lu <ming.lu@citrix.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-09-26scsi: libfc: fixup 'sleeping function called from invalid context'Hannes Reinecke1-3/+4
[ Upstream commit fa519f701d27198a2858bb108fc18ea9d8c106a7 ] fc_rport_login() will be calling mutex_lock() while running inside an RCU-protected section, triggering the warning 'sleeping function called from invalid context'. To fix this we can drop the rcu functions here altogether as the disc mutex protecting the list itself is already held, preventing any list manipulation. Fixes: a407c593398c ("scsi: libfc: Fixup disc_mutex handling") Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGOJohannes Thumshirn1-0/+1
[ Upstream commit 1550ec458e0cf1a40a170ab1f4c46e3f52860f65 ] When receiving a LOGO request we forget to clear the FC_RP_STARTED flag before starting the rport delete routine. As the started flag was not cleared, we're not deleting the rport but waiting for a restart and thus are keeping the reference count of the rdata object at 1. This leads to the following kmemleak report: unreferenced object 0xffff88006542aa00 (size 512): comm "kworker/0:2", pid 24, jiffies 4294899222 (age 226.880s) hex dump (first 32 bytes): 68 96 fe 65 00 88 ff ff 00 00 00 00 00 00 00 00 h..e............ 01 00 00 00 08 00 00 00 02 c5 45 24 ac b8 00 10 ..........E$.... backtrace: [<(____ptrval____)>] fcoe_ctlr_vn_add.isra.5+0x7f/0x770 [libfcoe] [<(____ptrval____)>] fcoe_ctlr_vn_recv+0x12af/0x27f0 [libfcoe] [<(____ptrval____)>] fcoe_ctlr_recv_work+0xd01/0x32f0 [libfcoe] [<(____ptrval____)>] process_one_work+0x7ff/0x1420 [<(____ptrval____)>] worker_thread+0x87/0xef0 [<(____ptrval____)>] kthread+0x2db/0x390 [<(____ptrval____)>] ret_from_fork+0x35/0x40 [<(____ptrval____)>] 0xffffffffffffffff Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reported-by: ard <ard@kwaak.net> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-06scsi: libfc: fix a deadlock in fc_rport_workSatish Kharat1-1/+1
In places like fc_rport_recv_plogi_req and fcoe_ctlr_vn_add we always take the lport disc_mutex lock before the rports mutex (rp_mutex) lock. Gaurding list_del_rcu(&rdata->peers) with disc.disc_mutex in fc_rport_work is correct but the rp_mutex lock can and should to be dropped before taking that lock else results in a deadlock. Signed-off-by: Satish Kharat <satishkh@cisco.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-26scsi: fc_fcp: do not call fc_block_scsi_eh() from host resetHannes Reinecke1-2/+0
When calling host reset we're resetting all ports anyway, so there is no point in waiting for the ports to become unblocked. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-07-13scsi: libfc: pass an error pointer to fc_disc_error()Dan Carpenter1-1/+1
This patch is basically to silence a static checker warning. drivers/scsi/libfc/fc_disc.c:326 fc_disc_error() warn: passing a valid pointer to 'PTR_ERR' It doesn't affect runtime because it treats -ENOMEM and a valid pointer the same. But the documentation says we should be passing an error pointer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-16networking: convert many more places to skb_put_zero()Johannes Berg1-1/+1
There were many places that my previous spatch didn't find, as pointed out by yuan linyu in various patches. The following spatch found many more and also removes the now unnecessary casts: @@ identifier p, p2; expression len; expression skb; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_zero(skb, len); | -p = (t)skb_put(skb, len); +p = skb_put_zero(skb, len); ) ... when != p ( p2 = (t2)p; -memset(p2, 0, len); | -memset(p, 0, len); ) @@ type t, t2; identifier p, p2; expression skb; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_zero(skb, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_zero(skb, sizeof(t)); ) ... when != p ( p2 = (t2)p; -memset(p2, 0, sizeof(*p)); | -memset(p, 0, sizeof(*p)); ) @@ expression skb, len; @@ -memset(skb_put(skb, len), 0, len); +skb_put_zero(skb, len); Apply it to the tree (with one manual fixup to keep the comment in vxlan.c, which spatch removed.) Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-17scsi: libfc: fix incorrect variable assignmentGustavo A. R. Silva1-1/+1
Previous assignment was causing the use of the uninitialized variable _explan_ inside fc_seq_ls_rjt() function, which in this particular case is being called by fc_seq_els_rsp_send(). [mkp: fixed typo] Addresses-Coverity-ID: 1398125 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-05-09scsi: libfc: do not flood console with messages 'libfc: queue full ...'Hannes Reinecke1-6/+9
When the FCoE sending side becomes congested libfc tries to reduce the queue depth on the host; however due to the built-in lag before attempting to ramp down the queue depth _again_ the message log is flooded with the following message: libfc: queue full, reducing can_queue to 512 With this patch the message is printed only once (ie when it's actually changed). Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-12scsi: libfc: directly call ELS request handlersJohannes Thumshirn1-11/+9
Directly call ELS request handler functions in fc_lport_recv_els_req instead of saving the pointer to the handler's receive function and then later dereferencing this pointer. This makes the code a bit more obvious. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-16scsi: libfc: convert fc_fcp_pkt.ref_cnt from atomic_t to refcount_tElena Reshetova1-3/+3
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-02sched/headers: Prepare to use <linux/rcuupdate.h> instead of ↵Ingo Molnar2-0/+4
<linux/rculist.h> in <linux/sched.h> We don't actually need the full rculist.h header in sched.h anymore, we will be able to include the smaller rcupdate.h header instead. But first update code that relied on the implicit header inclusion. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-28block: split scsi_request out of struct requestChristoph Hellwig1-1/+1
And require all drivers that want to support BLOCK_PC to allocate it as the first thing of their private data. To support this the legacy IDE and BSG code is switched to set cmd_size on their queues to let the block layer allocate the additional space. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-12-14Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds7-441/+802
Pull SCSI updates from James Bottomley: "This update includes the usual round of major driver updates (ncr5380, lpfc, hisi_sas, megaraid_sas, ufs, ibmvscsis, mpt3sas). There's also an assortment of minor fixes, mostly in error legs or other not very user visible stuff. The major change is the pci_alloc_irq_vectors replacement for the old pci_msix_.. calls; this effectively makes IRQ mapping generic for the drivers and allows blk_mq to use the information" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (256 commits) scsi: qla4xxx: switch to pci_alloc_irq_vectors scsi: hisi_sas: support deferred probe for v2 hw scsi: megaraid_sas: switch to pci_alloc_irq_vectors scsi: scsi_devinfo: remove synchronous ALUA for NETAPP devices scsi: be2iscsi: set errno on error path scsi: be2iscsi: set errno on error path scsi: hpsa: fallback to use legacy REPORT PHYS command scsi: scsi_dh_alua: Fix RCU annotations scsi: hpsa: use %phN for short hex dumps scsi: hisi_sas: fix free'ing in probe and remove scsi: isci: switch to pci_alloc_irq_vectors scsi: ipr: Fix runaway IRQs when falling back from MSI to LSI scsi: dpt_i2o: double free on error path scsi: cxlflash: Migrate scsi command pointer to AFU command scsi: cxlflash: Migrate IOARRIN specific routines to function pointers scsi: cxlflash: Cleanup queuecommand() scsi: cxlflash: Cleanup send_tmf() scsi: cxlflash: Remove AFU command lock scsi: cxlflash: Wait for active AFU commands to timeout upon tear down scsi: cxlflash: Remove private command pool ...
2016-11-25scsi: libfc: Remove an unneeded conditionDan Carpenter1-1/+0
We verified that resp_code is FC_SPP_RESP_ACK earlier so we don't need to check again here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: libfc: fix seconds_since_last_reset miscalculationJohannes Thumshirn1-1/+1
Commit 540eb1eef0ab ("scsi: libfc: fix seconds_since_last_reset calculation") removed the use of 'struct timespec' from fc_get_host_stats(). This broke the output of 'fcoeadm -s' after kernel 4.8-rc1. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Cc: <stable@vger.kernel.org> # v4.8+ Fixes: 540eb1eef0ab ("scsi: libfc: fix seconds_since_last_reset calculation") Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: fc: use bsg_job_doneJohannes Thumshirn1-2/+2
fc_bsg_jobdone() and bsg_job_done() are 1:1 copies now so use the bsg-lib one instead of the FC private implementation. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: change FC drivers to use 'struct bsg_job'Johannes Thumshirn1-5/+5
Change FC drivers to use 'struct bsg_job' from bsg-lib.h instead of 'struct fc_bsg_job' from scsi_transport_fc.h and remove 'struct fc_bsg_job'. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: libfc: don't set FC_RQST_STATE_DONE before calling fc_bsg_jobdone()Johannes Thumshirn1-2/+0
Don't set FC_RQST_STATE_DONE before calling fc_bsg_jobdone() as fc_bsg_jobdone() calls blk_complete_requeust() which raises a soft-IRQ that ends up in fc_bsg_sofirq_done() and fc_bsg_softirq_done() sets the FC_RQST_STATE_DONE flag. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: fc: provide fc_bsg_to_rport() helperJohannes Thumshirn1-2/+2
Provide fc_bsg_to_rport() helper that will become handy when we're moving from struct fc_bsg_job to a plain struct bsg_job. Also move all LLDDs to use the new helper. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: fc: provide fc_bsg_to_shost() helperJohannes Thumshirn1-1/+1
Provide fc_bsg_to_shost() helper that will become handy when we're moving from struct fc_bsg_job to a plain struct bsg_job. Also use this little helper in the LLDDs. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: fc: Export fc_bsg_jobdone and use it in FC driversJohannes Thumshirn1-2/+4
Export fc_bsg_jobdone so drivers can use it directly instead of doing the round-trip via struct fc_bsg_job::job_done() and use it in the LLDDs. That way we can also unify the interfaces of fc_bsg_jobdone and bsg_job_done. As we've converted all LLDDs over to use fc_bsg_jobdone() directly, we can remove the function pointer from struct fc_bsg_job as well. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-18scsi: don't use fc_bsg_job::request and fc_bsg_job::reply directlyJohannes Thumshirn1-10/+13
Don't use fc_bsg_job::request and fc_bsg_job::reply directly, but use helper variables bsg_request and bsg_reply. This will be helpful when transitioning to bsg-lib. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Don't have fc_exch_find log errors on a new exchangeChris Leech1-0/+3
With the error message I added in "libfc: sanity check cpu number extracted from xid" I didn't account for the fact that fc_exch_find is called with FC_XID_UNKNOWN at the start of a new exchange if we are the responder. It doesn't come up with the initiator much, but that's basically every exchange for a target. By checking the xid for FC_XID_UNKNOWN first, we not only prevent the erroneous error message, but skip the unnecessary lookup attempt as well. [mkp: applied by hand due to conflict with Hannes' libfc patch series] Signed-off-by: Chris Leech <cleech@redhat.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->seq_release callback with function callHannes Reinecke1-4/+2
The ->seq_release callback only ever had one implementation, so call the function directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->seq_assign callback with function callHannes Reinecke1-4/+2
The ->seq_assign callback only ever had one implementation, so call the function directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->seq_set_resp callback with direct function callHannes Reinecke1-7/+4
The ->seq_set_resp callback only ever had one implementation, so call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->seq_start_next callback with function callHannes Reinecke3-7/+5
The ->seq_start_next callback only ever had one implementation, so call the function directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->exch_done callback with function callHannes Reinecke3-16/+12
The ->exch_done callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->seq_exch_abort callback with function callHannes Reinecke2-7/+10
The ->seq_exch_abort callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->seq_send callback with function callHannes Reinecke2-7/+4
The ->seq_send callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Remove fc_rport_init()Hannes Reinecke1-10/+0
Function is empty now and can be removed. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Reviewed-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_flush_queue callback with function callHannes Reinecke3-6/+4
The ->rport_flush_queue callback only ever had a single implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_recv_req callback with function callHannes Reinecke2-5/+3
The ->rport_recv_req callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_logoff callback with function callHannes Reinecke3-14/+12
The ->rport_logoff callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Reviewed-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_login callback with function callHannes Reinecke3-10/+16
The ->rport_login callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_create callback with function callHannes Reinecke3-13/+9
The ->rport_create callback only ever had a single implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_lookup callback with function callHannes Reinecke2-10/+8
The ->rport_lookup callback only ever had a single implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->rport_destroy callback with function callHannes Reinecke3-44/+36
The ->rport_destroy callback only ever had one implementation, so we can as well call it directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->exch_seq_send callback with function callHannes Reinecke5-24/+38
The ->exch_seq_send callback only ever had one implementation, so we can call the function directly and drop the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-09scsi: libfc: Replace ->lport_recv with function callHannes Reinecke2-8/+5
The ->lport_recv callback only ever had one implementation, so call the function directly and remove the callback. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-26 03:03:31 +0300