Re: [Qemu-devel] [PATCH v2 3/3] tpm_tis: fix format string specifier in tpm_tis_show_buffer()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Hi Liam,

On 2/11/19 4:03 PM, Liam Merwick wrote:
> cppcheck reports:
> 
> [hw/tpm/tpm_tis.c:113]: (warning) %d in format string (no. 2) requires 'int' but the argument type is 'unsigned int'
> 
> Fix this by using %u instead of %d
> 
> Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
> ---
>  hw/tpm/tpm_tis.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
> index 860c2ace7d99..395500e8a61d 100644
> --- a/hw/tpm/tpm_tis.c
> +++ b/hw/tpm/tpm_tis.c
> @@ -110,7 +110,7 @@ static void tpm_tis_show_buffer(const unsigned char *buffer,
>      uint32_t len, i;

If you want to clean this, use a size_t here instead of u32.

>  
>      len = MIN(tpm_cmd_get_size(buffer), buffer_size);
> -    printf("tpm_tis: %s length = %d\n", string, len);
> +    printf("tpm_tis: %s length = %u\n", string, len);

So here the format is '%zu'.
However in code cleanup we try go get ride of printf() calls and replace
them with trace points.

>      for (i = 0; i < len; i++) {
>          if (i && !(i % 16)) {
>              printf("\n");
>