On Wed, 2019-01-09 at 13:16:45 UTC, Breno Leitao wrote:
> Commit e1c3743e1a20 ("powerpc/tm: Set MSR[TS] just prior to recheckpoint")
> moved a code block around and this block uses a 'msr' variable outside of
> the CONFIG_PPC_TRANSACTIONAL_MEM, however the 'msr' variable is declared
> inside a CONFIG_PPC_TRANSACTIONAL_MEM block, causing a possible error when
> CONFIG_PPC_TRANSACTION_MEM is not defined.
>
> error: 'msr' undeclared (first use in this function)
>
> This is not causing a compilation error in the mainline kernel, because
> 'msr' is being used as an argument of MSR_TM_ACTIVE(), which is defined as
> the following when CONFIG_PPC_TRANSACTIONAL_MEM is *not* set:
>
> #define MSR_TM_ACTIVE(x) 0
>
> This patch just fixes this issue avoiding the 'msr' variable usage outside
> the CONFIG_PPC_TRANSACTIONAL_MEM block, avoiding trusting in the
> MSR_TM_ACTIVE() definition.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: Christoph Biedl <linux-kernel.bfrz@xxxxxxxxxxxxxxxxxx>
> Fixes: e1c3743e1a20 ("powerpc/tm: Set MSR[TS] just prior to recheckpoint")
> Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/897bc3df8c5aebb54c32d831f917592e
cheers
