• Breno Leitao's avatar
    powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM · 897bc3df
    Breno Leitao authored
    Commit e1c3743e
     ("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@vger.kernel.org
    Reported-by: default avatarChristoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
    Fixes: e1c3743e
     ("powerpc/tm: Set MSR[TS] just prior to recheckpoint")
    Signed-off-by: default avatarBreno Leitao <leitao@debian.org>
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
signal_64.c 27.5 KB