Thread (3 messages) 3 messages, 3 authors, 2017-09-07

Re: linux-next: build warning after merge of the tpmdd tree

From: Jarkko Sakkinen <hidden>
Date: 2017-09-07 16:21:20
Also in: lkml

Colin, Stephen,

Thank you. I'll apply Colin's fix.

/Jarkko

On Thu, Sep 07, 2017 at 09:43:37AM +0100, Colin Ian King wrote:
Thanks for reporting that Stephen, I've sent a fix to address this issue.

Colin

On 07/09/17 03:31, Stephen Rothwell wrote:
quoted
Hi Jarkko,

After merging the tpmdd tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

drivers/char/tpm/tpm_tis_core.c: In function 'probe_itpm':
drivers/char/tpm/tpm_tis_core.c:469:31: warning: passing argument 2 of 'tpm_tis_send_data' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  rc = tpm_tis_send_data(chip, cmd_getticks, len);
                               ^
drivers/char/tpm/tpm_tis_core.c:255:12: note: expected 'u8 * {aka unsigned char *}' but argument is of type 'const u8 * {aka const unsigned char *}'
 static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
            ^
drivers/char/tpm/tpm_tis_core.c:477:31: warning: passing argument 2 of 'tpm_tis_send_data' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  rc = tpm_tis_send_data(chip, cmd_getticks, len);
                               ^
drivers/char/tpm/tpm_tis_core.c:255:12: note: expected 'u8 * {aka unsigned char *}' but argument is of type 'const u8 * {aka const unsigned char *}'
 static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
            ^

Introduced by commit

  5e35bd8e06b9 ("tpm_tis: make array cmd_getticks static const to shink object code size")
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