Thread (11 messages) 11 messages, 3 authors, 2019-11-04
STALE2423d LANDED: 1 (0M)
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 4/7] mmc: atmel-mci: Fix debugfs on 64-bit platforms

From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: 2019-10-25 11:08:51
Also in: linux-arm-kernel, linux-doc, linux-mmc, linux-wireless, lkml
Subsystem: microchip mmc/sd/sdio mci driver, multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers: Aubin Constans, Ulf Hansson, Linus Torvalds

"atmel_mci.pending_events" and "atmel_mci.completed_events" are
"unsigned long", i.e. 32-bit or 64-bit, depending on the platform.
Hence casting their addresses to "u32 *", and calling
debugfs_create_x32() breaks operation on 64-bit platforms.

Fix this by using the new debugfs_create_xul() helper instead.

Fixes: deec9ae31e607955 ("atmel-mci: debugfs support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <redacted>
---
v2:
  - Add Acked-by.
---
 drivers/mmc/host/atmel-mci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index c26fbe5f22221d95..ef2eb9e7c75a32a1 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -584,10 +584,10 @@ static void atmci_init_debugfs(struct atmel_mci_slot *slot)
 	debugfs_create_file("regs", S_IRUSR, root, host, &atmci_regs_fops);
 	debugfs_create_file("req", S_IRUSR, root, slot, &atmci_req_fops);
 	debugfs_create_u32("state", S_IRUSR, root, (u32 *)&host->state);
-	debugfs_create_x32("pending_events", S_IRUSR, root,
-			   (u32 *)&host->pending_events);
-	debugfs_create_x32("completed_events", S_IRUSR, root,
-			   (u32 *)&host->completed_events);
+	debugfs_create_xul("pending_events", S_IRUSR, root,
+			   &host->pending_events);
+	debugfs_create_xul("completed_events", S_IRUSR, root,
+			   &host->completed_events);
 }
 
 #if defined(CONFIG_OF)
-- 
2.17.1
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