1 files changed, 5 insertions, 6 deletions

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 793c6f7ddb04..1eda8dd8c867 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -324,13 +324,12 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
                 }
         }
 
+        /*
+         * The EXT_CSD format is meant to be forward compatible. As long
+         * as CSD_STRUCTURE does not change, all values for EXT_CSD_REV
+         * are authorized, see JEDEC JESD84-B50 section B.8.
+         */
         card->ext_csd.rev = ext_csd[EXT_CSD_REV];
-        if (card->ext_csd.rev > 7) {
-                pr_err("%s: unrecognised EXT_CSD revision %d\n",
-                        mmc_hostname(card->host), card->ext_csd.rev);
-                err = -EINVAL;
-                goto out;
-        }
 
         card->ext_csd.raw_sectors[0] = ext_csd[EXT_CSD_SEC_CNT + 0];
         card->ext_csd.raw_sectors[1] = ext_csd[EXT_CSD_SEC_CNT + 1];