• Vladimir Zapolskiy's avatar
    genalloc: add name arg to gen_pool_get() and devm_gen_pool_create() · 73858173
    Vladimir Zapolskiy authored
    This change modifies gen_pool_get() and devm_gen_pool_create() client
    interfaces adding one more argument "name" of a gen_pool object.
    Due to implementation gen_pool_get() is capable to retrieve only one
    gen_pool associated with a device even if multiple gen_pools are created,
    fortunately right at the moment it is sufficient for the clients, hence
    provide NULL as a valid argument on both producer devm_gen_pool_create()
    and consumer gen_pool_get() sides.
    Because only one created gen_pool per device is addressable, explicitly
    add a restriction to devm_gen_pool_create() to create only one gen_pool
    per device, this implies two possible error codes returned by the
    function, account it on client side (only misc/sram).  This completes
    client side changes related to genalloc updates.
    [akpm@linux-foundation.org: gen_pool_get() cleanup]
    Signed-off-by: default avatarVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
    Cc: Philipp Zabel <p.zabel@pengutronix.de>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Russell King <linux@arm.linux.org.uk>
    Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
    Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
    Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
    Cc: Shawn Guo <shawnguo@kernel.org>
    Cc: Sascha Hauer <kernel@pengutronix.de>
    Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>