path: root/lib/crc32test.c
AgeCommit message (Collapse)Author
2020-11-02lib/crc32test: remove extra local_irq_disable/enableVasily Gorbik
Commit 4d004099a668 ("lockdep: Fix lockdep recursion") uncovered the following issue in lib/crc32test reported on s390: BUG: using __this_cpu_read() in preemptible [00000000] code: swapper/0/1 caller is lockdep_hardirqs_on_prepare+0x48/0x270 CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.9.0-next-20201015-15164-g03d992bd2de6 #19 Hardware name: IBM 3906 M04 704 (LPAR) Call Trace: lockdep_hardirqs_on_prepare+0x48/0x270 trace_hardirqs_on+0x9c/0x1b8 crc32_test.isra.0+0x170/0x1c0 crc32test_init+0x1c/0x40 do_one_initcall+0x40/0x130 do_initcalls+0x126/0x150 kernel_init_freeable+0x1f6/0x230 kernel_init+0x22/0x150 ret_from_fork+0x24/0x2c no locks held by swapper/0/1. Remove extra local_irq_disable/local_irq_enable helpers calls. Fixes: 5fb7f87408f1 ("lib: add module support to crc32 tests") Signed-off-by: Vasily Gorbik <> Signed-off-by: Andrew Morton <> Cc: Peter Zijlstra <> Cc: Ingo Molnar <> Cc: Greg Kroah-Hartman <> Link: Signed-off-by: Linus Torvalds <>
2017-02-24lib: add module support to crc32 testsGeert Uytterhoeven
Extract the crc32 test code into its own source file, to allow to compile it either to a loadable module, or builtin into the kernel. Link: Signed-off-by: Geert Uytterhoeven <> Reviewed-by: Andy Shevchenko <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>