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SubjectRe: arm64: pointer auth.h:40:3: error: imp licit declaration of function ‘get random bytes ’; did you mean ‘get random once’?

On 30/07/2020 21:56, Linus Torvalds wrote:
> On Thu, Jul 30, 2020 at 11:47 AM Grygorii Strashko
> <> wrote:
>> I'd like to note that below set of patches:
>> 1c9df907da83 random: fix circular include dependency on arm64 after addition of percpu.h
>> 83bdc7275e62 random32: remove net_rand_state from the latent entropy gcc plugin
>> f227e3ec3b5c random32: update the net random state on interrupt and activity
>> also break ARM build for the case:
>> #if defined(CONFIG_SMP) && !defined(CONFIG_CPU_V6)
> Lovely.
> I think I'll have to revert 1c9df907da83 after all, and use Marc
> Zyngier's patch to just remove that troublesome <asm/pointer_auth.h>
> include in arm64 instead.
> This turned out to be much messier than it should have been.

FYI. Below diff seems fixes build:

diff --git a/arch/arm/include/asm/percpu.h b/arch/arm/include/asm/percpu.h
index f44f448537f2..1a3eedbac4a2 100644
--- a/arch/arm/include/asm/percpu.h
+++ b/arch/arm/include/asm/percpu.h
@@ -5,6 +5,8 @@
#ifndef _ASM_ARM_PERCPU_H_
#define _ASM_ARM_PERCPU_H_

+#include <asm/thread_info.h>
* Same as asm-generic/percpu.h, except that we store the per cpu offset
* in the TPIDRPRW. TPIDRPRW only exists on V6K and V7

Best regards,

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