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SubjectRe: [PATCH] powerpc/fixmap: Fix FIX_EARLY_DEBUG_BASE when page size is 256k
Date
On Mon, 15 Jun 2020 07:48:25 +0000 (UTC), Christophe Leroy wrote:
> FIX_EARLY_DEBUG_BASE reserves a 128k area for debuging.
>
> When page size is 256k, the calculation results in a 0 number of
> pages, leading to the following failure:
>
> CC arch/powerpc/kernel/asm-offsets.s
> In file included from ./arch/powerpc/include/asm/nohash/32/pgtable.h:77:0,
> from ./arch/powerpc/include/asm/nohash/pgtable.h:8,
> from ./arch/powerpc/include/asm/pgtable.h:20,
> from ./include/linux/pgtable.h:6,
> from ./arch/powerpc/include/asm/kup.h:42,
> from ./arch/powerpc/include/asm/uaccess.h:9,
> from ./include/linux/uaccess.h:11,
> from ./include/linux/crypto.h:21,
> from ./include/crypto/hash.h:11,
> from ./include/linux/uio.h:10,
> from ./include/linux/socket.h:8,
> from ./include/linux/compat.h:15,
> from arch/powerpc/kernel/asm-offsets.c:14:
> ./arch/powerpc/include/asm/fixmap.h:75:2: error: overflow in enumeration values
> __end_of_permanent_fixed_addresses,
> ^
> make[2]: *** [arch/powerpc/kernel/asm-offsets.s] Error 1
>
> [...]

Applied to powerpc/next.

[1/1] powerpc/fixmap: Fix FIX_EARLY_DEBUG_BASE when page size is 256k
https://git.kernel.org/powerpc/c/03fd42d458fb9cb69e712600bd69ff77ff3a45a8

cheers

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