Patch "mtd: nand: Declare tBERS, tR and tPROG as u64 to avoid integer overflow" has been added to the 4.12-stable tree

This is a note to let you know that I've just added the patch titled

mtd: nand: Declare tBERS, tR and tPROG as u64 to avoid integer overflow

to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mtd-nand-declare-tbers-tr-and-tprog-as-u64-to-avoid-integer-overflow.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Boris Brezillon <[email protected]>
Date: Mon, 31 Jul 2017 10:31:27 +0200
Subject: mtd: nand: Declare tBERS, tR and tPROG as u64 to avoid integer overflow

From: Boris Brezillon <[email protected]>

commit 6d29231000bbe0fb9e4893a9c68151ffdd3b5469 upstream.

All timings in nand_sdr_timings are expressed in picoseconds but some of them may not fit in an u32.

---
 drivers/mtd/nand/nand_timings.c |    6 +++---
 include/linux/mtd/nand.h        |    6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

@@ -311,9 +311,9 @@ int onfi_init_data_interface(struct nand
 		struct nand_sdr_timings *timings = &iface->timings.sdr;
 
 		/* microseconds -> picoseconds */
-		timings->tPROG_max = 1000000UL * le16_to_cpu(params->t_prog);
-		timings->tBERS_max = 1000000UL * le16_to_cpu(params->t_bers);
-		timings->tR_max = 1000000UL * le16_to_cpu(params->t_r);
+		timings->tPROG_max = 1000000ULL * le16_to_cpu(params->t_prog);
+		timings->tBERS_max = 1000000ULL * le16_to_cpu(params->t_bers);
+		timings->tR_max = 1000000ULL * le16_to_cpu(params->t_r);
 
 		/* nanoseconds -> picoseconds */
 		timings->tCCS_min = 1000UL * le16_to_cpu(params->t_ccs);

@@ -638,10 +638,10 @@ struct nand_buffers {
  * @tWW_min: WP# transition to WE# low
  */
 struct nand_sdr_timings {
-	u32 tBERS_max;
+	u64 tBERS_max;
 	u32 tCCS_min;
-	u32 tPROG_max;
-	u32 tR_max;
+	u64 tPROG_max;
+	u64 tR_max;
 	u32 tALH_min;
 	u32 tADL_min;
 	u32 tALS_min;

Patches currently in stable-queue which might be from [email protected] are

queue-4.12/mtd-nand-atmel-fix-dt-backward-compatibility-in-pmecc.c.patch queue-4.12/mtd-nand-fix-timing-setup-for-nands-that-do-not-support-set-features.patch queue-4.12/mtd-nand-declare-tbers-tr-and-tprog-as-u64-to-avoid-integer-overflow.patch queue-4.12/nand-fix-wrong-default-oob-layout-for-small-pages-using-soft-ecc.patch