#ifndef __ASM_GENERIC_IRQFLAGS_H #define __ASM_GENERIC_IRQFLAGS_H /* * All architectures should implement at least the first two functions, * usually inline assembly will be the best way. */ #ifndef ARCH_IRQ_DISABLED #define ARCH_IRQ_DISABLED 0 #define ARCH_IRQ_ENABLED 1 #endif /* read interrupt enabled status */ #ifndef arch_local_save_flags unsigned long arch_local_save_flags(void); #endif /* set interrupt enabled status */ #ifndef arch_local_irq_restore void arch_local_irq_restore(unsigned long flags); #endif /* get status and disable interrupts */ #ifndef arch_local_irq_save static inline unsigned long arch_local_irq_save(void) { unsigned long flags; flags = arch_local_save_flags(); arch_local_irq_restore(ARCH_IRQ_DISABLED); return flags; } #endif /* test flags */ #ifndef arch_irqs_disabled_flags static inline int arch_irqs_disabled_flags(unsigned long flags) { return flags == ARCH_IRQ_DISABLED; } #endif /* unconditionally enable interrupts */ #ifndef arch_local_irq_enable static inline void arch_local_irq_enable(void) { arch_local_irq_restore(ARCH_IRQ_ENABLED); } #endif /* unconditionally disable interrupts */ #ifndef arch_local_irq_disable static inline void arch_local_irq_disable(void) { arch_local_irq_restore(ARCH_IRQ_DISABLED); } #endif /* test hardware interrupt enable bit */ #ifndef arch_irqs_disabled static inline int arch_irqs_disabled(void) { return arch_irqs_disabled_flags(arch_local_save_flags()); } #endif #endif /* __ASM_GENERIC_IRQFLAGS_H */ user
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authorLaura Abbott <labbott@redhat.com>2016-12-21 12:32:54 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-12-27 17:32:11 +0800
commit02608e02fbec04fccf2eb0cc8d8082f65c0a4286 (patch)
tree37ff0410d130cfe77185f591b07cd6403f207f0c /include/rxrpc
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
crypto: testmgr - Use heap buffer for acomp test input
Christopher Covington reported a crash on aarch64 on recent Fedora kernels: kernel BUG at ./include/linux/scatterlist.h:140! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 752 Comm: cryptomgr_test Not tainted 4.9.0-11815-ge93b1cc #162 Hardware name: linux,dummy-virt (DT) task: ffff80007c650080 task.stack: ffff800008910000 PC is at sg_init_one+0xa0/0xb8 LR is at sg_init_one+0x24/0xb8 ... [<ffff000008398db8>] sg_init_one+0xa0/0xb8 [<ffff000008350a44>] test_acomp+0x10c/0x438 [<ffff000008350e20>] alg_test_comp+0xb0/0x118 [<ffff00000834f28c>] alg_test+0x17c/0x2f0 [<ffff00000834c6a4>] cryptomgr_test+0x44/0x50 [<ffff0000080dac70>] kthread+0xf8/0x128 [<ffff000008082ec0>] ret_from_fork+0x10/0x50 The test vectors used for input are part of the kernel image. These inputs are passed as a buffer to sg_init_one which eventually blows up with BUG_ON(!virt_addr_valid(buf)). On arm64, virt_addr_valid returns false for the kernel image since virt_to_page will not return the correct page. Fix this by copying the input vectors to heap buffer before setting up the scatterlist. Reported-by: Christopher Covington <cov@codeaurora.org> Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp") Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/rxrpc')