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2378975bd5
Someone could use send_hpi_cmd() on a card that doesn't advertise support for HPI. Then maybe didn't work fine. Because card->ext_csd.hpi_cmd didn't set. So if card didn't support hpi, return the warning message. And CMD12's flags is MMC_RSP_R1B. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>