From: Bean Huo <beanhuo(a)micron.com>
Currently, we have two ways to issue multiple-block read/write the
command to the eMMC. One is by normal IO request path fs->block->mmc.
Another one is that we can issue multiple-block read/write through
MMC ioctl interface. For the first path, mrq->stop, and mrq->stop->opcode
will be initialized in mmc_blk_data_prep(). However, for the second IO
path, mrq->stop is not initialized since it is a pre-defined multiple
blocks read/write.
Meanwhile, if it is open-ended multiple block read/write command,
STOP_TRANSMISSION CMD12 will be issued later in mmc_blk_issue_drv_op(),
since it is MMC_IOC_MULTI_CMD.
So, delete these if-statement checkups, let these kinds of multiple-block
read/write request go.
Fixes 'ba3869ff32e4 ("mmc: cavium: Add core MMC driver for Cavium SOCs")'
Cc: stable(a)vger.kernel.org
Signed-off-by: Bean Huo <beanhuo(a)micron.com>
---
drivers/mmc/host/cavium.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c
index 95a41983c6c0..8fb7cbcf62ad 100644
--- a/drivers/mmc/host/cavium.c
+++ b/drivers/mmc/host/cavium.c
@@ -654,8 +654,7 @@ static void cvm_mmc_dma_request(struct mmc_host *mmc,
struct mmc_data *data;
u64 emm_dma, addr;
- if (!mrq->data || !mrq->data->sg || !mrq->data->sg_len ||
- !mrq->stop || mrq->stop->opcode != MMC_STOP_TRANSMISSION) {
+ if (!mrq->data || !mrq->data->sg || !mrq->data->sg_len) {
dev_err(&mmc->card->dev, "Error: %s no data\n", __func__);
goto error;
}
--
2.25.1
Commit d3eeb1d77c5d0af ("xen/gntdev: use mmu_interval_notifier_insert")
introduced an error in gntdev_mmap(): in case the call of
mmu_interval_notifier_insert_locked() fails the exit path should not
call mmu_interval_notifier_remove(), as this might result in NULL
dereferences.
One reason for failure is e.g. a signal pending for the running
process.
Fixes: d3eeb1d77c5d0af ("xen/gntdev: use mmu_interval_notifier_insert")
Cc: stable(a)vger.kernel.org
Reported-by: Marek Marczykowski-Górecki <marmarek(a)invisiblethingslab.com>
Tested-by: Marek Marczykowski-Górecki <marmarek(a)invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross(a)suse.com>
---
drivers/xen/gntdev.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index f01d58c7a042..a3e7be96527d 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -1017,8 +1017,10 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
err = mmu_interval_notifier_insert_locked(
&map->notifier, vma->vm_mm, vma->vm_start,
vma->vm_end - vma->vm_start, &gntdev_mmu_ops);
- if (err)
+ if (err) {
+ map->vma = NULL;
goto out_unlock_put;
+ }
}
mutex_unlock(&priv->lock);
--
2.26.2
Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.
Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com>
---
drivers/mtd/nand/raw/cs553x_nand.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/cs553x_nand.c b/drivers/mtd/nand/raw/cs553x_nand.c
index 6edf78c16fc8..3e41d815d5b0 100644
--- a/drivers/mtd/nand/raw/cs553x_nand.c
+++ b/drivers/mtd/nand/raw/cs553x_nand.c
@@ -240,6 +240,15 @@ static int cs_calculate_ecc(struct nand_chip *this, const u_char *dat,
return 0;
}
+static int cs553x_ecc_correct(struct nand_chip *chip,
+ unsigned char *buf,
+ unsigned char *read_ecc,
+ unsigned char *calc_ecc)
+{
+ return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+ chip->ecc.size, false);
+}
+
static struct cs553x_nand_controller *controllers[4];
static int cs553x_attach_chip(struct nand_chip *chip)
@@ -251,7 +260,7 @@ static int cs553x_attach_chip(struct nand_chip *chip)
chip->ecc.bytes = 3;
chip->ecc.hwctl = cs_enable_hwecc;
chip->ecc.calculate = cs_calculate_ecc;
- chip->ecc.correct = rawnand_sw_hamming_correct;
+ chip->ecc.correct = cs553x_ecc_correct;
chip->ecc.strength = 1;
return 0;
--
2.27.0
Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.
Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com>
---
drivers/mtd/nand/raw/fsmc_nand.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index a24e2f57fa68..99a4dde9825a 100644
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -25,6 +25,7 @@
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand-ecc-sw-hamming.h>
#include <linux/mtd/rawnand.h>
#include <linux/platform_device.h>
#include <linux/of.h>
@@ -432,6 +433,15 @@ static int fsmc_read_hwecc_ecc1(struct nand_chip *chip, const u8 *data,
return 0;
}
+static int fsmc_correct_ecc1(struct nand_chip *chip,
+ unsigned char *buf,
+ unsigned char *read_ecc,
+ unsigned char *calc_ecc)
+{
+ return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+ chip->ecc.size, false);
+}
+
/* Count the number of 0's in buff upto a max of max_bits */
static int count_written_bits(u8 *buff, int size, int max_bits)
{
@@ -917,7 +927,7 @@ static int fsmc_nand_attach_chip(struct nand_chip *nand)
case NAND_ECC_ENGINE_TYPE_ON_HOST:
dev_info(host->dev, "Using 1-bit HW ECC scheme\n");
nand->ecc.calculate = fsmc_read_hwecc_ecc1;
- nand->ecc.correct = rawnand_sw_hamming_correct;
+ nand->ecc.correct = fsmc_correct_ecc1;
nand->ecc.hwctl = fsmc_enable_hwecc;
nand->ecc.bytes = 3;
nand->ecc.strength = 1;
--
2.27.0
Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.
Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable(a)vger.kernel.org
Cc: Vladimir Zapolskiy <vz(a)mleia.com>
Reported-by: Trevor Woerner <twoerner(a)gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com>
Tested-by: Trevor Woerner <twoerner(a)gmail.com>
---
drivers/mtd/nand/raw/lpc32xx_slc.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/lpc32xx_slc.c b/drivers/mtd/nand/raw/lpc32xx_slc.c
index 6b7269cfb7d8..d7dfc6fd85ca 100644
--- a/drivers/mtd/nand/raw/lpc32xx_slc.c
+++ b/drivers/mtd/nand/raw/lpc32xx_slc.c
@@ -27,6 +27,7 @@
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/mtd/lpc32xx_slc.h>
+#include <linux/mtd/nand-ecc-sw-hamming.h>
#define LPC32XX_MODNAME "lpc32xx-nand"
@@ -344,6 +345,18 @@ static int lpc32xx_nand_ecc_calculate(struct nand_chip *chip,
return 0;
}
+/*
+ * Corrects the data
+ */
+static int lpc32xx_nand_ecc_correct(struct nand_chip *chip,
+ unsigned char *buf,
+ unsigned char *read_ecc,
+ unsigned char *calc_ecc)
+{
+ return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+ chip->ecc.size, false);
+}
+
/*
* Read a single byte from NAND device
*/
@@ -802,7 +815,7 @@ static int lpc32xx_nand_attach_chip(struct nand_chip *chip)
chip->ecc.write_oob = lpc32xx_nand_write_oob_syndrome;
chip->ecc.read_oob = lpc32xx_nand_read_oob_syndrome;
chip->ecc.calculate = lpc32xx_nand_ecc_calculate;
- chip->ecc.correct = rawnand_sw_hamming_correct;
+ chip->ecc.correct = lpc32xx_nand_ecc_correct;
chip->ecc.hwctl = lpc32xx_nand_ecc_enable;
/*
--
2.27.0
Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.
Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com>
---
drivers/mtd/nand/raw/ndfc.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/ndfc.c b/drivers/mtd/nand/raw/ndfc.c
index 338d6b1a189e..98d5a94c3a24 100644
--- a/drivers/mtd/nand/raw/ndfc.c
+++ b/drivers/mtd/nand/raw/ndfc.c
@@ -22,6 +22,7 @@
#include <linux/mtd/ndfc.h>
#include <linux/slab.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand-ecc-sw-hamming.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <asm/io.h>
@@ -100,6 +101,15 @@ static int ndfc_calculate_ecc(struct nand_chip *chip,
return 0;
}
+static int ndfc_correct_ecc(struct nand_chip *chip,
+ unsigned char *buf,
+ unsigned char *read_ecc,
+ unsigned char *calc_ecc)
+{
+ return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+ chip->ecc.size, false);
+}
+
/*
* Speedups for buffer read/write/verify
*
@@ -145,7 +155,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
chip->controller = &ndfc->ndfc_control;
chip->legacy.read_buf = ndfc_read_buf;
chip->legacy.write_buf = ndfc_write_buf;
- chip->ecc.correct = rawnand_sw_hamming_correct;
+ chip->ecc.correct = ndfc_correct_ecc;
chip->ecc.hwctl = ndfc_enable_hwecc;
chip->ecc.calculate = ndfc_calculate_ecc;
chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST;
--
2.27.0
Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.
Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com>
---
drivers/mtd/nand/raw/sharpsl.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/sharpsl.c b/drivers/mtd/nand/raw/sharpsl.c
index 5612ee628425..2f1fe464e663 100644
--- a/drivers/mtd/nand/raw/sharpsl.c
+++ b/drivers/mtd/nand/raw/sharpsl.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand-ecc-sw-hamming.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/sharpsl.h>
@@ -96,6 +97,15 @@ static int sharpsl_nand_calculate_ecc(struct nand_chip *chip,
return readb(sharpsl->io + ECCCNTR) != 0;
}
+static int sharpsl_nand_correct_ecc(struct nand_chip *chip,
+ unsigned char *buf,
+ unsigned char *read_ecc,
+ unsigned char *calc_ecc)
+{
+ return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+ chip->ecc.size, false);
+}
+
static int sharpsl_attach_chip(struct nand_chip *chip)
{
if (chip->ecc.engine_type != NAND_ECC_ENGINE_TYPE_ON_HOST)
@@ -106,7 +116,7 @@ static int sharpsl_attach_chip(struct nand_chip *chip)
chip->ecc.strength = 1;
chip->ecc.hwctl = sharpsl_nand_enable_hwecc;
chip->ecc.calculate = sharpsl_nand_calculate_ecc;
- chip->ecc.correct = rawnand_sw_hamming_correct;
+ chip->ecc.correct = sharpsl_nand_correct_ecc;
return 0;
}
--
2.27.0
Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.
Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com>
---
drivers/mtd/nand/raw/tmio_nand.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/raw/tmio_nand.c b/drivers/mtd/nand/raw/tmio_nand.c
index de8e919d0ebe..6d93dd31969b 100644
--- a/drivers/mtd/nand/raw/tmio_nand.c
+++ b/drivers/mtd/nand/raw/tmio_nand.c
@@ -34,6 +34,7 @@
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand-ecc-sw-hamming.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/slab.h>
@@ -292,11 +293,12 @@ static int tmio_nand_correct_data(struct nand_chip *chip, unsigned char *buf,
int r0, r1;
/* assume ecc.size = 512 and ecc.bytes = 6 */
- r0 = rawnand_sw_hamming_correct(chip, buf, read_ecc, calc_ecc);
+ r0 = ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+ chip->ecc.size, false);
if (r0 < 0)
return r0;
- r1 = rawnand_sw_hamming_correct(chip, buf + 256, read_ecc + 3,
- calc_ecc + 3);
+ r1 = ecc_sw_hamming_correct(buf + 256, read_ecc + 3, calc_ecc + 3,
+ chip->ecc.size, false);
if (r1 < 0)
return r1;
return r0 + r1;
--
2.27.0