Commit Graph

64 Commits

Author SHA1 Message Date
Jiapeng Chong
1630e752fb scsi: bfa: Fix warning comparing pointer to 0
Fix the following coccicheck warning:

./drivers/scsi/bfa/bfad_bsg.c:3412:29-30: WARNING comparing pointer to
0.

Link: https://lore.kernel.org/r/1615880930-120780-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24 22:35:39 -04:00
Lee Jones
3bbd8ef9f7 scsi: bfa: Staticify all local functions
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/bfa/bfad_bsg.c:19:1: warning: no previous prototype for ‘bfad_iocmd_ioc_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:42:1: warning: no previous prototype for ‘bfad_iocmd_ioc_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:150:1: warning: no previous prototype for ‘bfad_iocmd_ioc_get_fwstats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:180:1: warning: no previous prototype for ‘bfad_iocmd_ioc_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:198:1: warning: no previous prototype for ‘bfad_iocmd_ioc_set_name’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:212:1: warning: no previous prototype for ‘bfad_iocmd_iocfc_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:223:1: warning: no previous prototype for ‘bfad_iocmd_ioc_fw_sig_inv’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:235:1: warning: no previous prototype for ‘bfad_iocmd_iocfc_set_intr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:248:1: warning: no previous prototype for ‘bfad_iocmd_port_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:269:1: warning: no previous prototype for ‘bfad_iocmd_port_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:319:1: warning: no previous prototype for ‘bfad_iocmd_port_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:353:1: warning: no previous prototype for ‘bfad_iocmd_port_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:374:1: warning: no previous prototype for ‘bfad_iocmd_set_port_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:394:1: warning: no previous prototype for ‘bfad_iocmd_port_cfg_maxfrsize’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:408:1: warning: no previous prototype for ‘bfad_iocmd_port_cfg_bbcr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:431:1: warning: no previous prototype for ‘bfad_iocmd_port_get_bbcr_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:469:1: warning: no previous prototype for ‘bfad_iocmd_lport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:493:1: warning: no previous prototype for ‘bfad_iocmd_lport_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:527:1: warning: no previous prototype for ‘bfad_iocmd_lport_get_iostats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:552:1: warning: no previous prototype for ‘bfad_iocmd_lport_get_rports’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:594:1: warning: no previous prototype for ‘bfad_iocmd_rport_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:680:1: warning: no previous prototype for ‘bfad_iocmd_rport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:721:1: warning: no previous prototype for ‘bfad_iocmd_rport_clr_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:757:1: warning: no previous prototype for ‘bfad_iocmd_rport_set_speed’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:793:1: warning: no previous prototype for ‘bfad_iocmd_vport_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:816:1: warning: no previous prototype for ‘bfad_iocmd_vport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:844:1: warning: no previous prototype for ‘bfad_iocmd_vport_clr_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:911:1: warning: no previous prototype for ‘bfad_iocmd_qos_set_bw’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:924:1: warning: no previous prototype for ‘bfad_iocmd_ratelim’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:953:1: warning: no previous prototype for ‘bfad_iocmd_ratelim_speed’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:982:1: warning: no previous prototype for ‘bfad_iocmd_cfg_fcpim’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:995:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_get_modstats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1017:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_clr_modstats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1039:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_get_del_itn_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1164:1: warning: no previous prototype for ‘bfad_iocmd_fcport_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1177:1: warning: no previous prototype for ‘bfad_iocmd_fcport_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1190:1: warning: no previous prototype for ‘bfad_iocmd_ioc_get_pcifn_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1212:1: warning: no previous prototype for ‘bfad_iocmd_pcifn_create’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1235:1: warning: no previous prototype for ‘bfad_iocmd_pcifn_delete’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1257:1: warning: no previous prototype for ‘bfad_iocmd_pcifn_bw’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1281:1: warning: no previous prototype for ‘bfad_iocmd_adapter_cfg_mode’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1304:1: warning: no previous prototype for ‘bfad_iocmd_port_cfg_mode’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1328:1: warning: no previous prototype for ‘bfad_iocmd_ablk_optrom’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1354:1: warning: no previous prototype for ‘bfad_iocmd_faa_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1377:1: warning: no previous prototype for ‘bfad_iocmd_cee_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1413:1: warning: no previous prototype for ‘bfad_iocmd_cee_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1450:1: warning: no previous prototype for ‘bfad_iocmd_cee_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1464:1: warning: no previous prototype for ‘bfad_iocmd_sfp_media’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1486:1: warning: no previous prototype for ‘bfad_iocmd_sfp_speed’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1507:1: warning: no previous prototype for ‘bfad_iocmd_flash_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1528:1: warning: no previous prototype for ‘bfad_iocmd_flash_erase_part’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1548:1: warning: no previous prototype for ‘bfad_iocmd_flash_update_part’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1580:1: warning: no previous prototype for ‘bfad_iocmd_flash_read_part’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1612:1: warning: no previous prototype for ‘bfad_iocmd_diag_temp’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1634:1: warning: no previous prototype for ‘bfad_iocmd_diag_memtest’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1657:1: warning: no previous prototype for ‘bfad_iocmd_diag_loopback’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1680:1: warning: no previous prototype for ‘bfad_iocmd_diag_fwping’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1704:1: warning: no previous prototype for ‘bfad_iocmd_diag_queuetest’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1725:1: warning: no previous prototype for ‘bfad_iocmd_diag_sfp’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1748:1: warning: no previous prototype for ‘bfad_iocmd_diag_led’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1761:1: warning: no previous prototype for ‘bfad_iocmd_diag_beacon_lport’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1776:1: warning: no previous prototype for ‘bfad_iocmd_diag_lb_stat’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1791:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_enable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1813:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_disable’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1833:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_start’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1858:1: warning: no previous prototype for ‘bfad_iocmd_diag_dport_show’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1873:1: warning: no previous prototype for ‘bfad_iocmd_phy_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1894:1: warning: no previous prototype for ‘bfad_iocmd_phy_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1915:1: warning: no previous prototype for ‘bfad_iocmd_phy_read’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1947:1: warning: no previous prototype for ‘bfad_iocmd_vhba_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1966:1: warning: no previous prototype for ‘bfad_iocmd_phy_update’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:1996:1: warning: no previous prototype for ‘bfad_iocmd_porglog_get’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2016:1: warning: no previous prototype for ‘bfad_iocmd_debug_fw_core’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2050:1: warning: no previous prototype for ‘bfad_iocmd_debug_ctl’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2071:1: warning: no previous prototype for ‘bfad_iocmd_porglog_ctl’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2085:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_cfg_profile’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2129:1: warning: no previous prototype for ‘bfad_iocmd_fcport_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2154:1: warning: no previous prototype for ‘bfad_iocmd_fcport_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2178:1: warning: no previous prototype for ‘bfad_iocmd_boot_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2200:1: warning: no previous prototype for ‘bfad_iocmd_boot_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2222:1: warning: no previous prototype for ‘bfad_iocmd_preboot_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2241:1: warning: no previous prototype for ‘bfad_iocmd_ethboot_cfg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2264:1: warning: no previous prototype for ‘bfad_iocmd_ethboot_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2287:1: warning: no previous prototype for ‘bfad_iocmd_cfg_trunk’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2327:1: warning: no previous prototype for ‘bfad_iocmd_trunk_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2350:1: warning: no previous prototype for ‘bfad_iocmd_qos’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2378:1: warning: no previous prototype for ‘bfad_iocmd_qos_get_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2404:1: warning: no previous prototype for ‘bfad_iocmd_qos_get_vc_attr’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2436:1: warning: no previous prototype for ‘bfad_iocmd_qos_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2468:1: warning: no previous prototype for ‘bfad_iocmd_qos_reset_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2499:1: warning: no previous prototype for ‘bfad_iocmd_vf_get_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2522:1: warning: no previous prototype for ‘bfad_iocmd_vf_clr_stats’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2559:1: warning: no previous prototype for ‘bfad_iocmd_lunmask’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2582:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_lunmask_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2596:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_cfg_lunmask’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2615:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_throttle_query’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2630:1: warning: no previous prototype for ‘bfad_iocmd_fcpim_throttle_set’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2645:1: warning: no previous prototype for ‘bfad_iocmd_tfru_read’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2667:1: warning: no previous prototype for ‘bfad_iocmd_tfru_write’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2689:1: warning: no previous prototype for ‘bfad_iocmd_fruvpd_read’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2711:1: warning: no previous prototype for ‘bfad_iocmd_fruvpd_update’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:2733:1: warning: no previous prototype for ‘bfad_iocmd_fruvpd_get_max_size’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3181:1: warning: no previous prototype for ‘bfad_fcxp_get_req_sgaddr_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3193:1: warning: no previous prototype for ‘bfad_fcxp_get_req_sglen_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3203:1: warning: no previous prototype for ‘bfad_fcxp_get_rsp_sgaddr_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3215:1: warning: no previous prototype for ‘bfad_fcxp_get_rsp_sglen_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3225:1: warning: no previous prototype for ‘bfad_send_fcpt_cb’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3240:1: warning: no previous prototype for ‘bfad_fcxp_map_sg’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3284:1: warning: no previous prototype for ‘bfad_fcxp_free_mem’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3302:1: warning: no previous prototype for ‘bfad_fcxp_bsg_send’ [-Wmissing-prototypes]
 drivers/scsi/bfa/bfad_bsg.c:3342:1: warning: no previous prototype for ‘bfad_im_bsg_els_ct_request’ [-Wmissing-prototypes]

Link: https://lore.kernel.org/r/20200721164148.2617584-36-lee.jones@linaro.org
Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:02 -04:00
Jason Yan
102026483d scsi: bfa: Make bfad_iocmd_ioc_get_stats() static
Fix the following sparse warning:

drivers/scsi/bfa/bfad_bsg.c:140:1: warning: symbol
'bfad_iocmd_ioc_get_stats' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200505073807.40332-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 22:22:07 -04:00
Thomas Gleixner
52fa7bf9ea treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 292
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license gpl version 2
  as published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 66 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.606369721@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:38 +02:00
Luis Chamberlain
750afb08ca cross-tree: phase out dma_zalloc_coherent()
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-08 07:58:37 -05:00
Kees Cook
6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Stephen Kitt
1929e82e37 scsi: bfa: remove VLA
In preparation to enabling -Wvla, remove VLAs and replace them with
fixed-length arrays instead.

bfad_bsg.c uses a variable-length array declaration to measure the
size of a putative array; this can be replaced by the product of the
size of an element and the number of elements, avoiding the VLA
altogether.

This was prompted by https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Stephen Kitt <steve@sk2.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-15 00:35:43 -04:00
Linus Torvalds
28bc6fb959 SCSI misc on 20180131
This is mostly updates of the usual driver suspects: arcmsr,
 scsi_debug, mpt3sas, lpfc, cxlflash, qla2xxx, aacraid, megaraid_sas,
 hisi_sas.  We also have a rework of the libsas hotplug handling to
 make it more robust, a slew of 32 bit time conversions and fixes, and
 a host of the usual minor updates and style changes.  The biggest
 potential for regressions is the libsas hotplug changes, but so far
 they seem stable under testing.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.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:
 "This is mostly updates of the usual driver suspects: arcmsr,
  scsi_debug, mpt3sas, lpfc, cxlflash, qla2xxx, aacraid, megaraid_sas,
  hisi_sas.

  We also have a rework of the libsas hotplug handling to make it more
  robust, a slew of 32 bit time conversions and fixes, and a host of the
  usual minor updates and style changes. The biggest potential for
  regressions is the libsas hotplug changes, but so far they seem stable
  under testing"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (313 commits)
  scsi: qla2xxx: Fix logo flag for qlt_free_session_done()
  scsi: arcmsr: avoid do_gettimeofday
  scsi: core: Add VENDOR_SPECIFIC sense code definitions
  scsi: qedi: Drop cqe response during connection recovery
  scsi: fas216: fix sense buffer initialization
  scsi: ibmvfc: Remove unneeded semicolons
  scsi: hisi_sas: fix a bug in hisi_sas_dev_gone()
  scsi: hisi_sas: directly attached disk LED feature for v2 hw
  scsi: hisi_sas: devicetree: bindings: add LED feature for v2 hw
  scsi: megaraid_sas: NVMe passthrough command support
  scsi: megaraid: use ktime_get_real for firmware time
  scsi: fnic: use 64-bit timestamps
  scsi: qedf: Fix error return code in __qedf_probe()
  scsi: devinfo: fix format of the device list
  scsi: qla2xxx: Update driver version to 10.00.00.05-k
  scsi: qla2xxx: Add XCB counters to debugfs
  scsi: qla2xxx: Fix queue ID for async abort with Multiqueue
  scsi: qla2xxx: Fix warning for code intentation in __qla24xx_handle_gpdb_event()
  scsi: qla2xxx: Fix warning during port_name debug print
  scsi: qla2xxx: Fix warning in qla2x00_async_iocb_timeout()
  ...
2018-01-31 11:23:28 -08:00
Arnd Bergmann
8c5a50e8e7 scsi: bfa: convert to strlcpy/strlcat
The bfa driver has a number of real issues with string termination
that gcc-8 now points out:

drivers/scsi/bfa/bfad_bsg.c: In function 'bfad_iocmd_port_get_attr':
drivers/scsi/bfa/bfad_bsg.c:320:9: error: argument to 'sizeof' in 'strncpy' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c: In function 'bfa_fcs_fabric_psymb_init':
drivers/scsi/bfa/bfa_fcs.c:775:9: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c:781:9: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c:788:9: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c:801:10: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c:808:10: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c: In function 'bfa_fcs_fabric_nsymb_init':
drivers/scsi/bfa/bfa_fcs.c:837:10: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c:844:10: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c:852:10: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs.c: In function 'bfa_fcs_fabric_psymb_init':
drivers/scsi/bfa/bfa_fcs.c:778:2: error: 'strncat' output may be truncated copying 10 bytes from a string of length 63 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs.c:784:2: error: 'strncat' output may be truncated copying 30 bytes from a string of length 63 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs.c:803:3: error: 'strncat' output may be truncated copying 44 bytes from a string of length 63 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs.c:811:3: error: 'strncat' output may be truncated copying 16 bytes from a string of length 63 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs.c: In function 'bfa_fcs_fabric_nsymb_init':
drivers/scsi/bfa/bfa_fcs.c:840:2: error: 'strncat' output may be truncated copying 10 bytes from a string of length 63 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs.c:847:2: error: 'strncat' output may be truncated copying 30 bytes from a string of length 63 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs_lport.c: In function 'bfa_fcs_fdmi_get_hbaattr':
drivers/scsi/bfa/bfa_fcs_lport.c:2657:10: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs_lport.c:2659:11: error: argument to 'sizeof' in 'strncat' call is the same expression as the source; did you mean to use the size of the destination? [-Werror=sizeof-pointer-memaccess]
drivers/scsi/bfa/bfa_fcs_lport.c: In function 'bfa_fcs_lport_ms_gmal_response':
drivers/scsi/bfa/bfa_fcs_lport.c:3232:5: error: 'strncpy' output may be truncated copying 16 bytes from a string of length 247 [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs_lport.c: In function 'bfa_fcs_lport_ns_send_rspn_id':
drivers/scsi/bfa/bfa_fcs_lport.c:4670:3: error: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs_lport.c:4682:3: error: 'strncat' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs_lport.c: In function 'bfa_fcs_lport_ns_util_send_rspn_id':
drivers/scsi/bfa/bfa_fcs_lport.c:5206:3: error: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs_lport.c:5215:3: error: 'strncat' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcs_lport.c: In function 'bfa_fcs_fdmi_get_portattr':
drivers/scsi/bfa/bfa_fcs_lport.c:2751:2: error: 'strncpy' specified bound 128 equals destination size [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcbuild.c: In function 'fc_rspnid_build':
drivers/scsi/bfa/bfa_fcbuild.c:1254:2: error: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
drivers/scsi/bfa/bfa_fcbuild.c:1253:25: note: length computed here
drivers/scsi/bfa/bfa_fcbuild.c: In function 'fc_rsnn_nn_build':
drivers/scsi/bfa/bfa_fcbuild.c:1275:2: error: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]

In most cases, this can be addressed by correctly calling strlcpy and
strlcat instead of strncpy/strncat, with the size of the destination
buffer as the last argument.

For consistency, I'm changing the other callers of strncpy() in this
driver the same way.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-11 21:30:46 -05:00
Arnd Bergmann
48d83282db scsi: bfa: fix type conversion warning
A regression fix introduced a harmless type mismatch warning:

drivers/scsi/bfa/bfad_bsg.c: In function 'bfad_im_bsg_vendor_request':
drivers/scsi/bfa/bfad_bsg.c:3137:35: error: initialization of 'struct bfad_im_port_s *' from 'long unsigned int' makes pointer from integer without a cast [-Werror=int-conversion]
  struct bfad_im_port_s *im_port = shost->hostdata[0];
                                   ^~~~~
drivers/scsi/bfa/bfad_bsg.c: In function 'bfad_im_bsg_els_ct_request':
drivers/scsi/bfa/bfad_bsg.c:3353:35: error: initialization of 'struct bfad_im_port_s *' from 'long unsigned int' makes pointer from integer without a cast [-Werror=int-conversion]
  struct bfad_im_port_s *im_port = shost->hostdata[0];

This changes the code back to shost_priv() once more, but encapsulates
it in an inline function to document the rather unusual way of
using the private data only as a pointer to the previously allocated
structure.

I did not try to get rid of the extra indirection level entirely,
which would have been rather invasive and required reworking the entire
initialization sequence.

Fixes: 45349821ab ("scsi: bfa: fix access to bfad_im_port_s")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-07 19:57:54 -05:00
Arnd Bergmann
aa22a52e18 scsi: bfa: document overflow of io_profile_start_time
io_profile_start_time() gets read using do_gettimeofday() and passed
down as a 32-bit value through multiple functions. This will overflow in
y2038 or y2106, depending on whether it gets interpreted as unsigned in
the end.

This changes do_gettimeofday() to ktime_get_real_seconds() and pushes
the point at which it overflows to where we actually assign it to the
bfa_fcpim_del_itn_stats_s structure, with an appropriate comment.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Anil Gurumurthy <Anil.Gurumurthy@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-04 20:32:52 -05:00
Johannes Thumshirn
45349821ab scsi: bfa: fix access to bfad_im_port_s
Commit 'cd21c605b2cf ("scsi: fc: provide fc_bsg_to_shost() helper")'
changed access to bfa's 'struct bfad_im_port_s' by using shost_priv()
instead of shost->hostdata[0].

This lead to crashes like in the following back-trace:

task: ffff880046375300 ti: ffff8800a2ef8000 task.ti: ffff8800a2ef8000
RIP: e030:[<ffffffffa04c8252>]  [<ffffffffa04c8252>] bfa_fcport_get_attr+0x82/0x260 [bfa]
RSP: e02b:ffff8800a2efba10  EFLAGS: 00010046
RAX: 575f415441536432 RBX: ffff8800a2efba28 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8800a2efba28 RDI: ffff880004dc31d8
RBP: ffff880004dc31d8 R08: 0000000000000000 R09: 0000000000000001
R10: ffff88011fadc468 R11: 0000000000000001 R12: ffff880004dc31f0
R13: 0000000000000200 R14: ffff880004dc61d0 R15: ffff880004947a10
FS:  00007feb1e489700(0000) GS:ffff88011fac0000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007ffe14e46c10 CR3: 00000000957b8000 CR4: 0000000000000660
Stack:
 ffff88001d4da000 ffff880004dc31c0 ffffffffa048a9df ffffffff81e56380
 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[] bfad_iocmd_ioc_get_info+0x4f/0x220 [bfa]
[] bfad_iocmd_handler+0xa00/0xd40 [bfa]
[] bfad_im_bsg_request+0xee/0x1b0 [bfa]
[] fc_bsg_dispatch+0x10b/0x1b0 [scsi_transport_fc]
[] bsg_request_fn+0x11d/0x1c0
[] __blk_run_queue+0x2f/0x40
[] blk_execute_rq_nowait+0xa8/0x160
[] blk_execute_rq+0x77/0x120
[] bsg_ioctl+0x1b6/0x200
[] do_vfs_ioctl+0x2cd/0x4a0
[] SyS_ioctl+0x74/0x80
[] entry_SYSCALL_64_fastpath+0x12/0x6d

Fixes: cd21c605b2 ("scsi: fc: provide fc_bsg_to_shost() helper")
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Michal Koutný <mkoutny@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-11-29 00:17:23 -05:00
Christoph Hellwig
b8d897ab66 scsi: bfa: don't reset max_segments for every bsg request
We already support 256 or more segments as long as the architecture
supports SG chaining (all the ones that matter do), so removed the weird
playing with limits from the job handler.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-10-16 23:36:23 -04:00
Johannes Thumshirn
4633773799 scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request()
Commit 01e0e15c8b ("scsi: don't use fc_bsg_job::request and
fc_bsg_job::reply directly") introduced a typo, which causes that the
bsg_request variable in bfad_im_bsg_els_ct_request() is initialized to
itself instead of pointing to the bsg job's request.

Reported-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-17 14:03:32 -05:00
Johannes Thumshirn
06548160df scsi: fc: use bsg_job_done
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>
2016-11-17 20:15:26 -05:00
Johannes Thumshirn
75cc8cfc6e scsi: change FC drivers to use 'struct bsg_job'
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>
2016-11-17 20:15:25 -05:00
Johannes Thumshirn
cd21c605b2 scsi: fc: provide fc_bsg_to_shost() helper
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>
2016-11-17 20:15:25 -05:00
Johannes Thumshirn
1abaede715 scsi: fc: Export fc_bsg_jobdone and use it in FC drivers
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>
2016-11-17 20:15:25 -05:00
Johannes Thumshirn
01e0e15c8b scsi: don't use fc_bsg_job::request and fc_bsg_job::reply directly
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>
2016-11-17 20:15:24 -05:00
Anil Gurumurthy
31e1d56957 bfa: File header and user visible string changes
Signed-off-by: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-02 17:07:38 -05:00
Anil Gurumurthy
889d0d4266 bfa: Update copyright messages
Signed-off-by: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-02 17:05:45 -05:00
Peter Senna Tschudin
0e772b33a1 bfa: remove useless return variables
This patch remove variables that are initialized with a constant,
are never updated, and are only used as parameter of return.
Return the constant instead of using a variable.

Verified by compilation only.

The coccinelle script that find and fixes this issue is:
// <smpl>
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
    when strict
return
- ret
+ C
;
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:55 -04:00
Joe Perches
7626d9f36c bfa: Use dma_zalloc_coherent
Use the zeroing function instead of dma_alloc_coherent & memset(,0,)

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:54 -04:00
Wei Yongjun
e39a8b4f9e [SCSI] bfa: fix missing unlock on error in bfad_iocmd_cfg_trunk()
Add the missing unlock before return from function bfad_iocmd_cfg_trunk()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:19:00 -07:00
Vijaya Mohan Guvva
28d358d01e [SCSI] bfa: Firmware patch simplification
This patch includes change to enable firmware patch simplication
feature. This feature is targeted to address the requirement to have
independent patch release for firmware. Prior to 3.2.3, releasing a
patch fix for firmware requires changes to bfa, to use new firmware
images. But with these changes, if the new firmware is flashed on to the
HBA with brocade adapter management utilites, driver uses the new
firmware after checking the patch release byte in the firmware version.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-19 07:39:04 -08:00
Vijaya Mohan Guvva
079bcbc35c [SCSI] bfa: fru vpd date update changes
1. While FRU VPD data update, inform firmware to send a completion event
   on I2C bus. Without this change, firmware used to send completion
   message on I2C bus for every chunk of FRU VPD update.
2. Support for FRU VPN update on CHINOOK2 cards.
3. Append port count to the model name to differentiate between single
   port and dual port model of 1860.
4. Update the size of the model name to 16bytes

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 14:44:35 -07:00
Vijaya Mohan Guvva
bccd2683df [SCSI] bfa: driver compatibility with 32bit libs
Replaced usage of void * with u64 in data structure shared between
brocade user space libraries and the bfa driver to address pointer
size changes across 32-bit vs 64-bit to have the compatibility between
32bit library and 64bit driver and vice versa.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 13:49:49 -07:00
Vijaya Mohan Guvva
1a898a794d [SCSI] bfa: Add dynamic diagnostic port support
D-Port is a new port type created with the intention of running link
level diagnostic tests like loopback, traffic test. In static D-port
mode, user configures the port to D-port mode and starts the test, but
in dynamic D-port, once the Brocade switch port is configured to
D-port, it will reject the regular FLOGI from HBA with reason that it is
in D-port mode. So based on the reason code HBA port will turn itself into
D-port and start diagnostic test.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:44:20 -07:00
Vijaya Mohan Guvva
bbe37a67d9 [SCSI] bfa: Support for FC BB credit recovery
This patch includes changes to  1) Enable/disable fc credit recovery on
Brocade FC adapter port operating at max supported speed. 2) Get credit
recovery status and stats related to credit loss and recovered credits

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-26 11:40:12 -07:00
Krishna Gudipati
e6826c96ce [SCSI] bfa: Add support to read/update the FRU data.
- Add FRU sub-module to support FRU read/write/update.
- Add support to read/write from the temp FRU module.

[jejb: fix checkpatch issues]
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:26:53 +01:00
Krishna Gudipati
1a1297c644 [SCSI] bfa: Add support to configure min/max bandwidth for a pcifn
- Added support to configure minimum bandwidth for a pcifn.
- Minimum bandwith is guaranteed at per queue level.
- Added support to update pcifn bandwidth dynamically without
  a server reboot.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:23:20 +01:00
Krishna Gudipati
7ace27ae28 [SCSI] bfa: Add support for IO throttling at port level
Add capability to limit the number of exchanges on a port to
avoid queue-full conditions from the target side.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:21:29 +01:00
Krishna Gudipati
6894f013a7 [SCSI] bfa: Add support for user to configure bandwidth on QoS priorities
Made changes to provide an option for user to configure the
bandwidth percentage for High/Medium/Low QoS priorities.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:20:08 +01:00
Krishna Gudipati
e353546e44 [SCSI] bfa: Add diagnostic port (D-Port) support
- Introduced support for D-Port which is a new port mode during which
  link level diagnostics can be run.
- Provided mechanism to dynamically configure D-Port and initiate diagnostic
  tests to isolate any link level issues.
- In D-Port mode, the HBA port does not participate in fabric or login to the
  remote device or run data traffic.
- Diagnostic tests include running various loopback tests in conjunction with
  the attached device.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:17:27 +01:00
Krishna Gudipati
bc0e2c2a97 [SCSI] bfa: Add support for FC Arbitrated Loop topology.
- Add private loop topology support at 2G/4G/8G speeds with following
  limitations
  1. No support for multiple initiators in the loop
  2. No public loop support. If attached to a loop with an FL_Port,
     device continues to work as a private NL_Port in the loop
  3. No auto topology detection. User has to manually set the
     configured topology to loop if attaching to loop.
- When loop topology is configured, enabling FC port features
  QoS/Trunk/TRL are not allowed and vice versa.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07 11:03:50 +01:00
Krishna Gudipati
61ba43947e [SCSI] bfa: Add support for max target ports discovery
- Changes to avoid discovering NPIV port as remote port by the other
  NPIV ports created on same physical port when all the NPIV ports are
  part of the same zone in a fabric.
- Provided mechanism to support maximum number of target ports for a
  given initiator port (physical port + NPIV ports) irrespective of the
  way in which the initiator and target ports are zoned in the fabric.
- Introduced module_parameter max_rport_logins to restrict number of
  remote ports discovery which includes target and initiator remote ports.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:57 +04:00
Krishna Gudipati
c3f1b123d0 [SCSI] bfa: Make changes to FCXP resource management.
- Made changes to split FCXP resources as request and response resources.
- The split will reduce the contention for FCXP resources in an open zone
  config.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:56 +04:00
Krishna Gudipati
ee1a4a42f6 [SCSI] bfa: FCS remote port enhancements.
- Introduced rport qualifier structure and modified design to
  export remote ports with valid pid or valid pwwn to the user space.
- Introduced old_pid field in the rport structure and made changes to
  prevent re-creating a new remote port for an already existing rport
  that is transitioning to a delete state. (Happens if we receive a RSCN
  on the existing remote port that is getting deleted).

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:56 +04:00
Krishna Gudipati
529f9a7655 [SCSI] bfa: Fix to set correct return error codes and misc cleanup.
- Remove unnecessary if NULL check in function bfa_fcs_vport_free().
- Set correct return error codes in case of memory allocation failure
  in the BSG ELS/CT passthru command handler.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:59:05 +01:00
Krishna Gudipati
bd5a026019 [SCSI] bfa: BSG and User interface fixes.
Made changes to set the rport maxfrsize param to use a value that is
equal to or less than the Buffer-to-Buffer Receive Data_Field size
specified in the Common Service Parameters.
Increased the diag memtest timeout for the Brocade-1860 adapters.
Made changes to enable valid port speed configuration check for all adapters.
Made changes to increase the max hw segments in a request, in order to
support larger data transfers from user space.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:57:58 +01:00
Krishna Gudipati
db9d8a75af [SCSI] bfa: Revised Fabric Assigned Address(FAA) feature implementation.
Made changes to the Fabric Assigned Address(FAA) feature implementation.
Introduced the IOCFC state machine, which now handles the FAA logic,
IOC and BFA sub-modules enablement.
Removed un-wanted FAA enable/disable routines; FAA is enabled by default.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 09:55:22 +01:00
Santosh Nayak
76c8ae4b2f [SCSI] bfa: Fix endian bug in bfad_iocmd_debug_fw_core().
Casting pointer from native data type to other type is
endian-sensitive.

"iocmd->offset"  is 64 bit but we use only first 32 bit.
It works in little-endian system but in big-endian system
it will break.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Acked-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-27 08:26:35 +01:00
Jesper Juhl
64b8aa75bc [SCSI] bfa: don't leak mem in bfad_im_bsg_els_ct_request()
If 'drv_fcxp = kzalloc(sizeof(struct bfad_fcxp), GFP_KERNEL);' fails
and returns NULL, then we'll leak the memory allocated to 'bsg_fcpt'
when we jump to 'out:' and the variable subsequently goes out of
scope.

Also remove the cast of the kzalloc() return value. kzalloc() returns
a void* which is implicitly converted, so the explicit cast is
pointless.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19 08:09:01 -06:00
Krishna Gudipati
5b7db7af52 [SCSI] bfa: Implement LUN Masking feature using the SCSI Slave Callouts.
This patch re-implements LUN Masking feature using SCSI Slave Callouts.  With
the new design in the slave_alloc entry point; for each new LUN discovered we
check with our internal LUN Masking config whether to expose or to mask this
particular LUN. We return -ENXIO (No such device or address) from slave_alloc
for the LUNs we don't want to be exposed.  We also notify the SCSI mid-layer
to do a sequential LUN scan rather than REPORT_LUNS based scan if LUN masking
is enabled on our HBA port, since a -ENXIO from any LUN in REPORT_LUNS based
scan translates to a scan abort.  This patch also handles the dynamic lun
masking config change from enable to disable or vice-versa by resetting
sdev_bflags of LUN 0 appropriately.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10 17:01:24 -06:00
Krishna Gudipati
4c5d22bf7b [SCSI] bfa: Added support to configure lunmasking
- Added support to enable / disable lunmasking on Brocade adapter ports.
- Added support to query / clear lunmasking configuration.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:57:31 +04:00
Krishna Gudipati
c0350bf574 [SCSI] bfa: Add support to collect / reset fabric stats.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:53:40 +04:00
Krishna Gudipati
3ec4f2c8bf [SCSI] bfa: Added support to configure QOS and collect stats.
- Added support to configure QOS on Brocade adapter ports.
- Added support to collect / reset QOS statistics.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:51:44 +04:00
Krishna Gudipati
45191236b1 [SCSI] bfa: Add support to configure trunking on Brocade adapter ports.
- Added logic to enable / disable trunking on Brocade adapter ports.
- Added logic to query trunking info.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:51:11 +04:00
Krishna Gudipati
a46bd300e1 [SCSI] bfa: Add support to configure and query flash boot partition
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:50:06 +04:00
Krishna Gudipati
37ea0558b8 [SCSI] bfa: Added support to collect and reset fcport stats
- Added support to collect and reset fcport stats.
- Modified design to allow multiple requests for fcport stats.
  - fcport will remember the stats request in its stats_pending
    queue and service each of the queued requests after receiving
    a firmware response for the prior request.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:48:52 +04:00