kernel/drivers/scsi/bfa/bfa_fcpim.c, branch linux-6.9.y

scsi: bfa: Fix function pointer type mismatch for state machines

2024-02-27T02:16:48Z

The bfa driver is full of state machines and a generic abstraction layer for them. This relies on casting function pointers, but that is no longer allowed when CONFIG_CFI_CLANG is enabled and causes a huge number of warnings like: drivers/scsi/bfa/bfad.c:169:3: error: cast from 'void (*)(struct bfad_s *, enum bfad_sm_event)' to 'bfa_sm_t' (aka 'void (*)(void *, int)') converts to incompatible function type [-Werror,-Wcast-function-type-strict] bfa_sm_set_state(bfad, bfad_sm_created); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Rework the mechanism to no longer require the function pointer casts, by having separate types for each individual state machine. This in turn requires moving the enum definitions for each state machine into the header files in order to define the typedef. Reviewed-by: Kees Cook Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20240222124433.2046570-2-arnd@kernel.org Signed-off-by: Martin K. Petersen

scsi: bfa: Drop driver-defined SCSI status codes

2021-01-23T02:14:08Z

Drop the driver-defined SCSI status codes and use the generic ones instead. Link: https://lore.kernel.org/r/20210113090500.129644-10-hare@suse.de Reviewed-by: Bart Van Assche Reviewed-by: Christoph Hellwig Signed-off-by: Hannes Reinecke Signed-off-by: Martin K. Petersen

treewide: Use fallthrough pseudo-keyword

2020-08-23T22:36:59Z

Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva

scsi: bfa: Demote seemingly unintentional kerneldoc header

2020-07-25T02:31:58Z

This is the only use of kerneldoc in the source file and no descriptions are provided. Fixes the following W=1 kernel build warning(s): drivers/scsi/bfa/bfa_fcpim.c:3829: warning: Function parameter or member 'bfa' not described in 'bfa_fcpim_get_throttle_cfg' drivers/scsi/bfa/bfa_fcpim.c:3829: warning: Function parameter or member 'drv_cfg_param' not described in 'bfa_fcpim_get_throttle_cfg' Link: https://lore.kernel.org/r/20200723122446.1329773-11-lee.jones@linaro.org Cc: Anil Gurumurthy Cc: Sudarsana Kalluru Signed-off-by: Lee Jones Signed-off-by: Martin K. Petersen

scsi: bfa: Remove set but unused variable 'rp'

2020-07-25T02:31:57Z

This change subsequently makes 'rp_fcs' unused also. Remove that too. Fixes the following W=1 kernel build warning(s): drivers/scsi/bfa/bfa_fcpim.c: In function ‘bfa_fcpim_lunmask_delete’: drivers/scsi/bfa/bfa_fcpim.c:2338:22: warning: variable ‘rp’ set but not used [-Wunused-but-set-variable] 2338 | struct bfa_rport_s *rp = NULL; | ^~ Link: https://lore.kernel.org/r/20200723122446.1329773-10-lee.jones@linaro.org Cc: Anil Gurumurthy Cc: Sudarsana Kalluru Signed-off-by: Lee Jones Signed-off-by: Martin K. Petersen

scsi: bfa: bfa_fcpim.c: make two functions static

2020-04-15T01:34:50Z

Fix the following sparse warning: drivers/scsi/bfa/bfa_fcpim.c:440:1: warning: symbol 'bfa_ioim_profile_comp' was not declared. Should it be static? drivers/scsi/bfa/bfa_fcpim.c:457:1: warning: symbol 'bfa_ioim_profile_start' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200407032202.36789-4-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 292

2019-06-05T15:36:38Z

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 Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.606369721@linutronix.de Signed-off-by: Greg Kroah-Hartman

scsi: bfa: bfa_fcpim: Mark expected switch fall-throughs

2019-04-08T23:37:24Z

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that I replaced "Fall through !!!" with a "fall through" annotation, which is what GCC is expecting to find. Addresses-Coverity-ID: 114971 ("Missing break in switch") Reviewed-by: Kees Cook Signed-off-by: Gustavo A. R. Silva

scsi: bfa: document overflow of io_profile_start_time

2017-12-05T01:32:52Z

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 Acked-by: Anil Gurumurthy Signed-off-by: Martin K. Petersen

scsi: bfa: remove bfa_module_s madness

2017-04-20T02:12:14Z

Just call the functions directly and remove a giant pile of boilerplate code. Signed-off-by: Christoph Hellwig Signed-off-by: Martin K. Petersen