Messages in this thread | | | Date | Thu, 14 Mar 2013 13:25:56 +0000 | From | Jonathan Austin <> | Subject | Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no |
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Hi Chen,
On 14/03/13 03:44, Chen Gang wrote: > Hello Maintainers: > > when use randconfig: > make V=1 EXTRA_CFLAGS=-W ARCH=arm randconfig > (and "grep CONFIG_MMU .config" outputs "# CONFIG_MMU is not set") > > the error information: > arch/arm/kernel/suspend.c: 在函数‘cpu_suspend’中: > arch/arm/kernel/suspend.c:56:32: 错误:提领指向不完全类型的指针 > arch/arm/kernel/suspend.c:70:3: 错误:隐式声明函数‘cpu_switch_mm’ [-Werror=implicit-function-declaration] > arch/arm/kernel/suspend.c:71:3: 错误:隐式声明函数‘local_flush_bp_all’ [-Werror=implicit-function-declaration] > arch/arm/kernel/suspend.c:72:3: 错误:隐式声明函数‘local_flush_tlb_all’ [-Werror=implicit-function-declaration] > > I want to be sure whether we can bear it ? >
You're right that at the moment that suspend code is broken for NOMMU.
However, Will Deacon has a patch to fix it in his nommu branch on kernel.org:
https://git.kernel.org/cgit/linux/kernel/git/will/linux.git/commit/?h=nommu
I'll let Will comment on how/when he might look at proposing that code to be merged.
Jonny
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