Re: [PATCH] tpm: Fix tpm_send() length calculation

From: kbuild test robot
Date: Mon Sep 16 2019 - 05:53:41 EST


Hi Jarkko,

I love your patch! Yet something to improve:

[auto build test ERROR on jss-tpmdd/next]
[cannot apply to v5.3 next-20190915]
[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-Fix-tpm_send-length-calculation/20190916-162814
base: git://git.infradead.org/users/jjs/linux-tpmdd next
config: x86_64-randconfig-a004-201937 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-11) 7.4.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

drivers/char/tpm/tpm-interface.c: In function 'tpm_send':
>> drivers/char/tpm/tpm-interface.c:366:5: error: 'struct tpm_buf' has no member named 'length'
buf.length = buflen;
^

vim +366 drivers/char/tpm/tpm-interface.c

343
344 /**
345 * tpm_send - send a TPM command
346 * @chip: a &struct tpm_chip instance, %NULL for the default chip
347 * @cmd: a TPM command buffer
348 * @buflen: the length of the TPM command buffer
349 *
350 * Return: same as with tpm_transmit_cmd()
351 */
352 int tpm_send(struct tpm_chip *chip, void *cmd, size_t buflen)
353 {
354 struct tpm_buf buf;
355 int rc;
356
357 chip = tpm_find_get_ops(chip);
358 if (!chip)
359 return -ENODEV;
360
361 rc = tpm_buf_init(&buf, 0, 0);
362 if (rc)
363 goto out;
364
365 memcpy(buf.data, cmd, buflen);
> 366 buf.length = buflen;
367
368 rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to a send a command");
369 tpm_buf_destroy(&buf);
370 out:
371 tpm_put_ops(chip);
372 return rc;
373 }
374 EXPORT_SYMBOL_GPL(tpm_send);
375

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