Messages in this thread | | | From | Mathias LEBLANC <> | Date | Fri, 17 May 2013 14:26:04 +0200 | Subject | RE: [tpmdd-devel] [PATCH 1/1] TPM: STMicroelectronics st33 driver SPI |
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Hi Peter,
Thanks for this new function. I had already changed the for loop but i would to be sure that it's the best way and that you expected.
Don't hesitate if you have any other recommendation or any comments for this driver.
Regards,
Mathias Leblanc ________________________________________ From: Peter Hüwe [PeterHuewe@gmx.de] Sent: 16 May 2013 21:03 To: tpmdd-devel@lists.sourceforge.net Cc: Mathias LEBLANC; Jean-Luc BLANC; linux-kernel@vger.kernel.org; Rajiv Andrade; Sirrix AG Subject: Re: [tpmdd-devel] [PATCH 1/1] TPM: STMicroelectronics st33 driver SPI
Hi Matthias:
> Regarding the while loop, I don't see how can I check the number of dummy > byte differently?
Checking the number of dummy bytes is fine - in line #144 you check it with a while loop which looks fine in line #198 you check it with a for loop with an empty body, which in my opinion looks less nice than the while in #144.
So simply replace the second instance in #198 and I'm happy with that part ;)
Maybe also have a look at memchr_inv
/** * memchr_inv - Find an unmatching character in an area of memory. * @start: The memory area * @c: Find a character other than c * @bytes: The size of the area. * * returns the address of the first character other than @c, or %NULL * if the whole buffer contains just @c. */ void *memchr_inv(const void *start, int c, size_t bytes)
so #198 would look something like: nbr_dummy_bytes = memchr_inv (xfer.rx_buf+nbr_dummy_bytes, 0, total_length-nbr_dummy_bytes) - xfer.rx_buf;
But I'm not sure whether that's more readable, maybe give it a try. I'm also fine with the while loop.
Peter
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