On Mon, 5 Jul 2010, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the omap tree got a conflict in
> arch/arm/kernel/entry-armv.S between commit
> df0698be14c6683606d5df2d83e3ae40f85ed0d9 ("ARM: stack protector: change
> the canary value per task") from the arm tree and commit
> 4481d0c7d25c9de9a3986c8b4c52389ca8bbf929 ("arm: Replace
> CONFIG_HAS_TLS_REG with HWCAP_TLS and check for it on V6") from the omap
> tree.
>
> Just context changes (I think). I fixed it up (see below) and can carry
> the fix as necessary.
Yes, the fix is fine. If you can carry it until either of those is
merged upstream that would be great.
> --
> Cheers,
> Stephen Rothwell s...@canb.auug.org.au
>
> diff --cc arch/arm/kernel/entry-armv.S
> index 2d14081,a6cfb17..0000000
> --- a/arch/arm/kernel/entry-armv.S
> +++ b/arch/arm/kernel/entry-armv.S
> @@@ -739,17 -740,7 +740,12 @@@ ENTRY(__switch_to
> #ifdef CONFIG_MMU
> ldr r6, [r2, #TI_CPU_DOMAIN]
> #endif
> - #if defined(CONFIG_HAS_TLS_REG)
> - mcr p15, 0, r3, c13, c0, 3 @ set TLS register
> - #elif !defined(CONFIG_TLS_REG_EMUL)
> - mov r4, #0xffff0fff
> - str r3, [r4, #-15] @ TLS val at 0xffff0ff0
> - #endif
> + set_tls r3, r4, r5
> +#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
> + ldr r7, [r2, #TI_TASK]
> + ldr r8, =__stack_chk_guard
> + ldr r7, [r7, #TSK_STACK_CANARY]
> +#endif
> #ifdef CONFIG_MMU
> mcr p15, 0, r6, c3, c0, 0 @ Set domain register
> #endif
> --
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