• Nathan Fontenot's avatar
    powerpc/pseries: Revert 'Auto-online hotplugged memory' · 943db62c
    Nathan Fontenot authored
    This reverts commit ec999072 ("powerpc/pseries: Auto-online
    hotplugged memory"), and 9dc51281 ("powerpc: Fix unused function
    warning 'lmb_to_memblock'").
    
    Using the auto-online acpability does online added memory but does not
    update the associated device struct to indicate that the memory is
    online. This causes the pseries memory DLPAR code to fail when trying to
    remove a LMB that was previously removed and added back. This happens
    when validating that the LMB is removable.
    
    This patch reverts to the previous behavior of calling device_online()
    to online the LMB when it is DLPAR added and moves the lmb_to_memblock()
    routine out of CONFIG_MEMORY_HOTREMOVE now that we call it for add.
    
    Fixes: ec999072 ("powerpc/pseries: Auto-online hotplugged memory")
    Cc: stable@vger.kernel.org # v4.8+
    Signed-off-by: default avatarNathan Fontenot <nfont@linux.vnet.ibm.com>
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    943db62c
pseries_defconfig 6.94 KB