Revision a9eb49c964884654dd6394cb6abe7ceb021c9c96 authored by Randy Dunlap on 03 October 2019, 02:23:15 UTC, committed by Jens Axboe on 03 October 2019, 20:21:32 UTC
sparse warns about incorrect type when using __be64 data. It is not being converted to CPU-endian but it should be. Fixes these sparse warnings: ../block/sed-opal.c:375:20: warning: incorrect type in assignment (different base types) ../block/sed-opal.c:375:20: expected unsigned long long [usertype] align ../block/sed-opal.c:375:20: got restricted __be64 const [usertype] alignment_granularity ../block/sed-opal.c:376:25: warning: incorrect type in assignment (different base types) ../block/sed-opal.c:376:25: expected unsigned long long [usertype] lowest_lba ../block/sed-opal.c:376:25: got restricted __be64 const [usertype] lowest_aligned_lba Fixes: 455a7b238cd6 ("block: Add Sed-opal library") Cc: Scott Bauer <scott.bauer@intel.com> Cc: Rafael Antognolli <rafael.antognolli@intel.com> Cc: linux-block@vger.kernel.org Reviewed-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Kconfig.debug
# SPDX-License-Identifier: GPL-2.0-only
#
# RCU-related debugging configuration options
#
menu "RCU Debugging"
config PROVE_RCU
def_bool PROVE_LOCKING
config PROVE_RCU_LIST
bool "RCU list lockdep debugging"
depends on PROVE_RCU && RCU_EXPERT
default n
help
Enable RCU lockdep checking for list usages. By default it is
turned off since there are several list RCU users that still
need to be converted to pass a lockdep expression. To prevent
false-positive splats, we keep it default disabled but once all
users are converted, we can remove this config option.
config TORTURE_TEST
tristate
default n
config RCU_PERF_TEST
tristate "performance tests for RCU"
depends on DEBUG_KERNEL
select TORTURE_TEST
select SRCU
select TASKS_RCU
default n
help
This option provides a kernel module that runs performance
tests on the RCU infrastructure. The kernel module may be built
after the fact on the running kernel to be tested, if desired.
Say Y here if you want RCU performance tests to be built into
the kernel.
Say M if you want the RCU performance tests to build as a module.
Say N if you are unsure.
config RCU_TORTURE_TEST
tristate "torture tests for RCU"
depends on DEBUG_KERNEL
select TORTURE_TEST
select SRCU
select TASKS_RCU
default n
help
This option provides a kernel module that runs torture tests
on the RCU infrastructure. The kernel module may be built
after the fact on the running kernel to be tested, if desired.
Say Y here if you want RCU torture tests to be built into
the kernel.
Say M if you want the RCU torture tests to build as a module.
Say N if you are unsure.
config RCU_CPU_STALL_TIMEOUT
int "RCU CPU stall timeout in seconds"
depends on RCU_STALL_COMMON
range 3 300
default 21
help
If a given RCU grace period extends more than the specified
number of seconds, a CPU stall warning is printed. If the
RCU grace period persists, additional CPU stall warnings are
printed at more widely spaced intervals.
config RCU_TRACE
bool "Enable tracing for RCU"
depends on DEBUG_KERNEL
default y if TREE_RCU
select TRACE_CLOCK
help
This option enables additional tracepoints for ftrace-style
event tracing.
Say Y here if you want to enable RCU tracing
Say N if you are unsure.
config RCU_EQS_DEBUG
bool "Provide debugging asserts for adding NO_HZ support to an arch"
depends on DEBUG_KERNEL
help
This option provides consistency checks in RCU's handling of
NO_HZ. These checks have proven quite helpful in detecting
bugs in arch-specific NO_HZ code.
Say N here if you need ultimate kernel/user switch latencies
Say Y if you are unsure
endmenu # "RCU Debugging"
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