Rename TPM_BUFSIZE defined in drivers/char/tpm/st33zp24/st33zp24.h to
ST33ZP24_BUFSIZE.
Rename TPM_BUFSIZE defined in drivers/char/tpm/tpm_i2c_infineon.c to
TPM_I2C_INFINEON_BUFSIZE.
Cc: [email protected]
Fixes: bf38b8710892 ("tpm/tpm_i2c_stm_st33: Split tpm_i2c_tpm_st33 in 2 layers (core + phy)")
Fixes: aad628c1d91a ("char/tpm: Add new driver for Infineon I2C TIS TPM")
Signed-off-by: Jarkko Sakkinen <[email protected]>
---
v2: Fix also the name collision in tpm_ic2_infineon.
drivers/char/tpm/st33zp24/i2c.c | 2 +-
drivers/char/tpm/st33zp24/spi.c | 2 +-
drivers/char/tpm/st33zp24/st33zp24.h | 4 ++--
drivers/char/tpm/tpm_i2c_infineon.c | 15 ++++++++-------
4 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/char/tpm/st33zp24/i2c.c b/drivers/char/tpm/st33zp24/i2c.c
index be5d1abd3e8e..8390c5b54c3b 100644
--- a/drivers/char/tpm/st33zp24/i2c.c
+++ b/drivers/char/tpm/st33zp24/i2c.c
@@ -33,7 +33,7 @@
struct st33zp24_i2c_phy {
struct i2c_client *client;
- u8 buf[TPM_BUFSIZE + 1];
+ u8 buf[ST33ZP24_BUFSIZE + 1];
int io_lpcpd;
};
diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c
index d7909ab287a8..ff019a1e3c68 100644
--- a/drivers/char/tpm/st33zp24/spi.c
+++ b/drivers/char/tpm/st33zp24/spi.c
@@ -63,7 +63,7 @@
* some latency byte before the answer is available (max 15).
* We have 2048 + 1024 + 15.
*/
-#define ST33ZP24_SPI_BUFFER_SIZE (TPM_BUFSIZE + (TPM_BUFSIZE / 2) +\
+#define ST33ZP24_SPI_BUFFER_SIZE (ST33ZP24_BUFSIZE + (ST33ZP24_BUFSIZE / 2) +\
MAX_SPI_LATENCY)
diff --git a/drivers/char/tpm/st33zp24/st33zp24.h b/drivers/char/tpm/st33zp24/st33zp24.h
index 6f4a4198af6a..20da0a84988d 100644
--- a/drivers/char/tpm/st33zp24/st33zp24.h
+++ b/drivers/char/tpm/st33zp24/st33zp24.h
@@ -18,8 +18,8 @@
#ifndef __LOCAL_ST33ZP24_H__
#define __LOCAL_ST33ZP24_H__
-#define TPM_WRITE_DIRECTION 0x80
-#define TPM_BUFSIZE 2048
+#define TPM_WRITE_DIRECTION 0x80
+#define ST33ZP24_BUFSIZE 2048
struct st33zp24_dev {
struct tpm_chip *chip;
diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
index 9086edc9066b..b9d5a1dda8d2 100644
--- a/drivers/char/tpm/tpm_i2c_infineon.c
+++ b/drivers/char/tpm/tpm_i2c_infineon.c
@@ -26,8 +26,7 @@
#include <linux/wait.h>
#include "tpm.h"
-/* max. buffer size supported by our TPM */
-#define TPM_BUFSIZE 1260
+#define TPM_I2C_INFINEON_MAX_BUFSIZE 1260
/* max. number of iterations after I2C NAK */
#define MAX_COUNT 3
@@ -63,11 +62,13 @@ enum i2c_chip_type {
UNKNOWN,
};
-/* Structure to store I2C TPM specific stuff */
struct tpm_inf_dev {
struct i2c_client *client;
int locality;
- u8 buf[TPM_BUFSIZE + sizeof(u8)]; /* max. buffer size + addr */
+ /* In addition to the data itself, the buffer must fit the 7-bit I2C
+ * address and the direction bit.
+ */
+ u8 buf[TPM_I2C_INFINEON_MAX_BUFSIZE + 1];
struct tpm_chip *chip;
enum i2c_chip_type chip_type;
unsigned int adapterlimit;
@@ -219,7 +220,7 @@ static int iic_tpm_write_generic(u8 addr, u8 *buffer, size_t len,
.buf = tpm_dev.buf
};
- if (len > TPM_BUFSIZE)
+ if (len > TPM_I2C_INFINEON_MAX_BUFSIZE)
return -EINVAL;
if (!tpm_dev.client->adapter->algo->master_xfer)
@@ -527,8 +528,8 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len)
u8 retries = 0;
u8 sts = TPM_STS_GO;
- if (len > TPM_BUFSIZE)
- return -E2BIG; /* command is too long for our tpm, sorry */
+ if (len > TPM_I2C_INFINEON_BUFSIZE)
+ return -E2BIG;
if (request_locality(chip, 0) < 0)
return -EBUSY;
--
2.19.1
On 2/4/2019 2:37 PM, Jarkko Sakkinen wrote:
> Rename TPM_BUFSIZE defined in drivers/char/tpm/st33zp24/st33zp24.h to
> ST33ZP24_BUFSIZE.
>
> Rename TPM_BUFSIZE defined in drivers/char/tpm/tpm_i2c_infineon.c to
> TPM_I2C_INFINEON_BUFSIZE.
Please also add a prefix to TPM_RETRY in tpm_i2c_nuvoton.c.
Thanks
Roberto
> Cc: [email protected]
> Fixes: bf38b8710892 ("tpm/tpm_i2c_stm_st33: Split tpm_i2c_tpm_st33 in 2 layers (core + phy)")
> Fixes: aad628c1d91a ("char/tpm: Add new driver for Infineon I2C TIS TPM")
> Signed-off-by: Jarkko Sakkinen <[email protected]>
> ---
> v2: Fix also the name collision in tpm_ic2_infineon.
> drivers/char/tpm/st33zp24/i2c.c | 2 +-
> drivers/char/tpm/st33zp24/spi.c | 2 +-
> drivers/char/tpm/st33zp24/st33zp24.h | 4 ++--
> drivers/char/tpm/tpm_i2c_infineon.c | 15 ++++++++-------
> 4 files changed, 12 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/char/tpm/st33zp24/i2c.c b/drivers/char/tpm/st33zp24/i2c.c
> index be5d1abd3e8e..8390c5b54c3b 100644
> --- a/drivers/char/tpm/st33zp24/i2c.c
> +++ b/drivers/char/tpm/st33zp24/i2c.c
> @@ -33,7 +33,7 @@
>
> struct st33zp24_i2c_phy {
> struct i2c_client *client;
> - u8 buf[TPM_BUFSIZE + 1];
> + u8 buf[ST33ZP24_BUFSIZE + 1];
> int io_lpcpd;
> };
>
> diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c
> index d7909ab287a8..ff019a1e3c68 100644
> --- a/drivers/char/tpm/st33zp24/spi.c
> +++ b/drivers/char/tpm/st33zp24/spi.c
> @@ -63,7 +63,7 @@
> * some latency byte before the answer is available (max 15).
> * We have 2048 + 1024 + 15.
> */
> -#define ST33ZP24_SPI_BUFFER_SIZE (TPM_BUFSIZE + (TPM_BUFSIZE / 2) +\
> +#define ST33ZP24_SPI_BUFFER_SIZE (ST33ZP24_BUFSIZE + (ST33ZP24_BUFSIZE / 2) +\
> MAX_SPI_LATENCY)
>
>
> diff --git a/drivers/char/tpm/st33zp24/st33zp24.h b/drivers/char/tpm/st33zp24/st33zp24.h
> index 6f4a4198af6a..20da0a84988d 100644
> --- a/drivers/char/tpm/st33zp24/st33zp24.h
> +++ b/drivers/char/tpm/st33zp24/st33zp24.h
> @@ -18,8 +18,8 @@
> #ifndef __LOCAL_ST33ZP24_H__
> #define __LOCAL_ST33ZP24_H__
>
> -#define TPM_WRITE_DIRECTION 0x80
> -#define TPM_BUFSIZE 2048
> +#define TPM_WRITE_DIRECTION 0x80
> +#define ST33ZP24_BUFSIZE 2048
>
> struct st33zp24_dev {
> struct tpm_chip *chip;
> diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
> index 9086edc9066b..b9d5a1dda8d2 100644
> --- a/drivers/char/tpm/tpm_i2c_infineon.c
> +++ b/drivers/char/tpm/tpm_i2c_infineon.c
> @@ -26,8 +26,7 @@
> #include <linux/wait.h>
> #include "tpm.h"
>
> -/* max. buffer size supported by our TPM */
> -#define TPM_BUFSIZE 1260
> +#define TPM_I2C_INFINEON_MAX_BUFSIZE 1260
>
> /* max. number of iterations after I2C NAK */
> #define MAX_COUNT 3
> @@ -63,11 +62,13 @@ enum i2c_chip_type {
> UNKNOWN,
> };
>
> -/* Structure to store I2C TPM specific stuff */
> struct tpm_inf_dev {
> struct i2c_client *client;
> int locality;
> - u8 buf[TPM_BUFSIZE + sizeof(u8)]; /* max. buffer size + addr */
> + /* In addition to the data itself, the buffer must fit the 7-bit I2C
> + * address and the direction bit.
> + */
> + u8 buf[TPM_I2C_INFINEON_MAX_BUFSIZE + 1];
> struct tpm_chip *chip;
> enum i2c_chip_type chip_type;
> unsigned int adapterlimit;
> @@ -219,7 +220,7 @@ static int iic_tpm_write_generic(u8 addr, u8 *buffer, size_t len,
> .buf = tpm_dev.buf
> };
>
> - if (len > TPM_BUFSIZE)
> + if (len > TPM_I2C_INFINEON_MAX_BUFSIZE)
> return -EINVAL;
>
> if (!tpm_dev.client->adapter->algo->master_xfer)
> @@ -527,8 +528,8 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len)
> u8 retries = 0;
> u8 sts = TPM_STS_GO;
>
> - if (len > TPM_BUFSIZE)
> - return -E2BIG; /* command is too long for our tpm, sorry */
> + if (len > TPM_I2C_INFINEON_BUFSIZE)
> + return -E2BIG;
>
> if (request_locality(chip, 0) < 0)
> return -EBUSY;
>
--
HUAWEI TECHNOLOGIES Duesseldorf GmbH, HRB 56063
Managing Director: Bo PENG, Jian LI, Yanli SHI
On Mon, Feb 04, 2019 at 02:49:54PM +0100, Roberto Sassu wrote:
> On 2/4/2019 2:37 PM, Jarkko Sakkinen wrote:
> > Rename TPM_BUFSIZE defined in drivers/char/tpm/st33zp24/st33zp24.h to
> > ST33ZP24_BUFSIZE.
> >
> > Rename TPM_BUFSIZE defined in drivers/char/tpm/tpm_i2c_infineon.c to
> > TPM_I2C_INFINEON_BUFSIZE.
>
> Please also add a prefix to TPM_RETRY in tpm_i2c_nuvoton.c.
Thanks, can do.
/Jarkko
On Tue, Feb 05, 2019 at 01:31:17AM +0200, Jarkko Sakkinen wrote:
> On Mon, Feb 04, 2019 at 02:49:54PM +0100, Roberto Sassu wrote:
> > On 2/4/2019 2:37 PM, Jarkko Sakkinen wrote:
> > > Rename TPM_BUFSIZE defined in drivers/char/tpm/st33zp24/st33zp24.h to
> > > ST33ZP24_BUFSIZE.
> > >
> > > Rename TPM_BUFSIZE defined in drivers/char/tpm/tpm_i2c_infineon.c to
> > > TPM_I2C_INFINEON_BUFSIZE.
> >
> > Please also add a prefix to TPM_RETRY in tpm_i2c_nuvoton.c.
>
> Thanks, can do.
TPM_RETRY defined in
32d33b29ba07 ("TPM: Retry SaveState command in suspend path")
has nothing to do with time. I'll also remove the comment about 5
seconds.
The definitions for TPM_RETRY seem fairly arbitrary. Jason, could
tpm_i2c_nuvoton also use the same constant as tpm_tis_spi and TPM 1.2
suspend, try max 50 times instead of five?
/Jarkko
Hi Jarkko,
I love your patch! Yet something to improve:
[auto build test ERROR on jss-tpmdd/next]
[also build test ERROR on v5.0-rc4 next-20190204]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Jarkko-Sakkinen/tpm-st33zp24-Fix-the-name-collisions-in-tpm_st33zp24_spi-and-tpm_i2c_infineon/20190205-150003
base: git://git.infradead.org/users/jjs/linux-tpmdd next
config: nds32-allyesconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 6.4.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=6.4.0 make.cross ARCH=nds32
All errors (new ones prefixed by >>):
drivers/char/tpm/tpm_i2c_infineon.c: In function 'tpm_tis_i2c_send':
>> drivers/char/tpm/tpm_i2c_infineon.c:531:12: error: 'TPM_I2C_INFINEON_BUFSIZE' undeclared (first use in this function)
if (len > TPM_I2C_INFINEON_BUFSIZE)
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/char/tpm/tpm_i2c_infineon.c:531:12: note: each undeclared identifier is reported only once for each function it appears in
vim +/TPM_I2C_INFINEON_BUFSIZE +531 drivers/char/tpm/tpm_i2c_infineon.c
522
523 static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len)
524 {
525 int rc, status;
526 ssize_t burstcnt;
527 size_t count = 0;
528 u8 retries = 0;
529 u8 sts = TPM_STS_GO;
530
> 531 if (len > TPM_I2C_INFINEON_BUFSIZE)
532 return -E2BIG;
533
534 if (request_locality(chip, 0) < 0)
535 return -EBUSY;
536
537 status = tpm_tis_i2c_status(chip);
538 if ((status & TPM_STS_COMMAND_READY) == 0) {
539 tpm_tis_i2c_ready(chip);
540 if (wait_for_stat
541 (chip, TPM_STS_COMMAND_READY,
542 chip->timeout_b, &status) < 0) {
543 rc = -ETIME;
544 goto out_err;
545 }
546 }
547
548 while (count < len - 1) {
549 burstcnt = get_burstcount(chip);
550
551 /* burstcnt < 0 = TPM is busy */
552 if (burstcnt < 0)
553 return burstcnt;
554
555 if (burstcnt > (len - 1 - count))
556 burstcnt = len - 1 - count;
557
558 rc = iic_tpm_write(TPM_DATA_FIFO(tpm_dev.locality),
559 &(buf[count]), burstcnt);
560 if (rc == 0)
561 count += burstcnt;
562 else if (rc < 0)
563 retries++;
564
565 /* avoid endless loop in case of broken HW */
566 if (retries > MAX_COUNT_LONG) {
567 rc = -EIO;
568 goto out_err;
569 }
570
571 wait_for_stat(chip, TPM_STS_VALID,
572 chip->timeout_c, &status);
573
574 if ((status & TPM_STS_DATA_EXPECT) == 0) {
575 rc = -EIO;
576 goto out_err;
577 }
578 }
579
580 /* write last byte */
581 iic_tpm_write(TPM_DATA_FIFO(tpm_dev.locality), &(buf[count]), 1);
582 wait_for_stat(chip, TPM_STS_VALID, chip->timeout_c, &status);
583 if ((status & TPM_STS_DATA_EXPECT) != 0) {
584 rc = -EIO;
585 goto out_err;
586 }
587
588 /* go and do it */
589 iic_tpm_write(TPM_STS(tpm_dev.locality), &sts, 1);
590
591 return len;
592 out_err:
593 tpm_tis_i2c_ready(chip);
594 /* The TPM needs some time to clean up here,
595 * so we sleep rather than keeping the bus busy
596 */
597 usleep_range(SLEEP_DURATION_RESET_LOW, SLEEP_DURATION_RESET_HI);
598 release_locality(chip, tpm_dev.locality, 0);
599 return rc;
600 }
601
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
On 2/5/2019 12:40 AM, Jarkko Sakkinen wrote:
> On Tue, Feb 05, 2019 at 01:31:17AM +0200, Jarkko Sakkinen wrote:
>> On Mon, Feb 04, 2019 at 02:49:54PM +0100, Roberto Sassu wrote:
>>> On 2/4/2019 2:37 PM, Jarkko Sakkinen wrote:
>>>> Rename TPM_BUFSIZE defined in drivers/char/tpm/st33zp24/st33zp24.h to
>>>> ST33ZP24_BUFSIZE.
>>>>
>>>> Rename TPM_BUFSIZE defined in drivers/char/tpm/tpm_i2c_infineon.c to
>>>> TPM_I2C_INFINEON_BUFSIZE.
>>>
>>> Please also add a prefix to TPM_RETRY in tpm_i2c_nuvoton.c.
>>
>> Thanks, can do.
>
> TPM_RETRY defined in
>
> 32d33b29ba07 ("TPM: Retry SaveState command in suspend path")
>
> has nothing to do with time. I'll also remove the comment about 5
> seconds.
I'll do the same for patch 4/6.
Roberto
> The definitions for TPM_RETRY seem fairly arbitrary. Jason, could
> tpm_i2c_nuvoton also use the same constant as tpm_tis_spi and TPM 1.2
> suspend, try max 50 times instead of five?
>
> /Jarkko
>
--
HUAWEI TECHNOLOGIES Duesseldorf GmbH, HRB 56063
Managing Director: Bo PENG, Jian LI, Yanli SHI
Hi Jarkko,
I love your patch! Yet something to improve:
[auto build test ERROR on jss-tpmdd/next]
[also build test ERROR on v5.0-rc4 next-20190204]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Jarkko-Sakkinen/tpm-st33zp24-Fix-the-name-collisions-in-tpm_st33zp24_spi-and-tpm_i2c_infineon/20190205-150003
base: git://git.infradead.org/users/jjs/linux-tpmdd next
config: x86_64-randconfig-x013-201905 (attached as .config)
compiler: gcc-8 (Debian 8.2.0-14) 8.2.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/char//tpm/tpm_i2c_infineon.c: In function 'tpm_tis_i2c_send':
>> drivers/char//tpm/tpm_i2c_infineon.c:531:12: error: 'TPM_I2C_INFINEON_BUFSIZE' undeclared (first use in this function); did you mean 'TPM_I2C_INFINEON_MAX_BUFSIZE'?
if (len > TPM_I2C_INFINEON_BUFSIZE)
^~~~~~~~~~~~~~~~~~~~~~~~
TPM_I2C_INFINEON_MAX_BUFSIZE
drivers/char//tpm/tpm_i2c_infineon.c:531:12: note: each undeclared identifier is reported only once for each function it appears in
vim +531 drivers/char//tpm/tpm_i2c_infineon.c
522
523 static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len)
524 {
525 int rc, status;
526 ssize_t burstcnt;
527 size_t count = 0;
528 u8 retries = 0;
529 u8 sts = TPM_STS_GO;
530
> 531 if (len > TPM_I2C_INFINEON_BUFSIZE)
532 return -E2BIG;
533
534 if (request_locality(chip, 0) < 0)
535 return -EBUSY;
536
537 status = tpm_tis_i2c_status(chip);
538 if ((status & TPM_STS_COMMAND_READY) == 0) {
539 tpm_tis_i2c_ready(chip);
540 if (wait_for_stat
541 (chip, TPM_STS_COMMAND_READY,
542 chip->timeout_b, &status) < 0) {
543 rc = -ETIME;
544 goto out_err;
545 }
546 }
547
548 while (count < len - 1) {
549 burstcnt = get_burstcount(chip);
550
551 /* burstcnt < 0 = TPM is busy */
552 if (burstcnt < 0)
553 return burstcnt;
554
555 if (burstcnt > (len - 1 - count))
556 burstcnt = len - 1 - count;
557
558 rc = iic_tpm_write(TPM_DATA_FIFO(tpm_dev.locality),
559 &(buf[count]), burstcnt);
560 if (rc == 0)
561 count += burstcnt;
562 else if (rc < 0)
563 retries++;
564
565 /* avoid endless loop in case of broken HW */
566 if (retries > MAX_COUNT_LONG) {
567 rc = -EIO;
568 goto out_err;
569 }
570
571 wait_for_stat(chip, TPM_STS_VALID,
572 chip->timeout_c, &status);
573
574 if ((status & TPM_STS_DATA_EXPECT) == 0) {
575 rc = -EIO;
576 goto out_err;
577 }
578 }
579
580 /* write last byte */
581 iic_tpm_write(TPM_DATA_FIFO(tpm_dev.locality), &(buf[count]), 1);
582 wait_for_stat(chip, TPM_STS_VALID, chip->timeout_c, &status);
583 if ((status & TPM_STS_DATA_EXPECT) != 0) {
584 rc = -EIO;
585 goto out_err;
586 }
587
588 /* go and do it */
589 iic_tpm_write(TPM_STS(tpm_dev.locality), &sts, 1);
590
591 return len;
592 out_err:
593 tpm_tis_i2c_ready(chip);
594 /* The TPM needs some time to clean up here,
595 * so we sleep rather than keeping the bus busy
596 */
597 usleep_range(SLEEP_DURATION_RESET_LOW, SLEEP_DURATION_RESET_HI);
598 release_locality(chip, tpm_dev.locality, 0);
599 return rc;
600 }
601
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
On Tue, Feb 05, 2019 at 09:08:33AM +0100, Roberto Sassu wrote:
> On 2/5/2019 12:40 AM, Jarkko Sakkinen wrote:
> > On Tue, Feb 05, 2019 at 01:31:17AM +0200, Jarkko Sakkinen wrote:
> > > On Mon, Feb 04, 2019 at 02:49:54PM +0100, Roberto Sassu wrote:
> > > > On 2/4/2019 2:37 PM, Jarkko Sakkinen wrote:
> > > > > Rename TPM_BUFSIZE defined in drivers/char/tpm/st33zp24/st33zp24.h to
> > > > > ST33ZP24_BUFSIZE.
> > > > >
> > > > > Rename TPM_BUFSIZE defined in drivers/char/tpm/tpm_i2c_infineon.c to
> > > > > TPM_I2C_INFINEON_BUFSIZE.
> > > >
> > > > Please also add a prefix to TPM_RETRY in tpm_i2c_nuvoton.c.
> > >
> > > Thanks, can do.
> >
> > TPM_RETRY defined in
> >
> > 32d33b29ba07 ("TPM: Retry SaveState command in suspend path")
> >
> > has nothing to do with time. I'll also remove the comment about 5
> > seconds.
>
> I'll do the same for patch 4/6.
Yep. I'll post a new patch ASAP.
/Jarkko
On Mon, 2019-02-04 at 15:37 +0200, Jarkko Sakkinen wrote:
> diff --git a/drivers/char/tpm/tpm_i2c_infineon.c
> b/drivers/char/tpm/tpm_i2c_infineon.c
> index 9086edc9066b..b9d5a1dda8d2 100644
> --- a/drivers/char/tpm/tpm_i2c_infineon.c
> +++ b/drivers/char/tpm/tpm_i2c_infineon.c
[...]
> @@ -527,8 +528,8 @@ static int tpm_tis_i2c_send(struct tpm_chip
> *chip, u8 *buf, size_t len)
> u8 retries = 0;
> u8 sts = TPM_STS_GO;
>
> - if (len > TPM_BUFSIZE)
> - return -E2BIG; /* command is too long for our
> tpm, sorry */
> + if (len > TPM_I2C_INFINEON_BUFSIZE)
TPM_I2C_INFINEON_MAX_BUFSIZE, surely, otherwise it won't compile ...
the kbuild robot just spotted this as well.
James
On Tue, Feb 05, 2019 at 02:40:22PM -0500, James Bottomley wrote:
> On Mon, 2019-02-04 at 15:37 +0200, Jarkko Sakkinen wrote:
> > diff --git a/drivers/char/tpm/tpm_i2c_infineon.c
> > b/drivers/char/tpm/tpm_i2c_infineon.c
> > index 9086edc9066b..b9d5a1dda8d2 100644
> > --- a/drivers/char/tpm/tpm_i2c_infineon.c
> > +++ b/drivers/char/tpm/tpm_i2c_infineon.c
> [...]
> > @@ -527,8 +528,8 @@ static int tpm_tis_i2c_send(struct tpm_chip
> > *chip, u8 *buf, size_t len)
> > u8 retries = 0;
> > u8 sts = TPM_STS_GO;
> >
> > - if (len > TPM_BUFSIZE)
> > - return -E2BIG; /* command is too long for our
> > tpm, sorry */
> > + if (len > TPM_I2C_INFINEON_BUFSIZE)
>
> TPM_I2C_INFINEON_MAX_BUFSIZE, surely, otherwise it won't compile ...
> the kbuild robot just spotted this as well.
Correct, unluckily, I had unstaged diff.
/Jarkko