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Re: [PATCH 3/8] Documentation/spi/spidev_test.c: accept input from a file

From Joshua Clayton <stillcompiling@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 3/8] Documentation/spi/spidev_test.c: accept input from a file
Date 2015-11-17 20:30 +0100
Message-ID <qvU70-N7-33@gated-at.bofh.it> (permalink)
References <qvQmJ-6NX-7@gated-at.bofh.it> <qvQmK-6NX-15@gated-at.bofh.it> <qvTaW-bm-9@gated-at.bofh.it>
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On Tuesday, November 17, 2015 07:26:54 PM Anton Bondarenko wrote:
> On 17.11.2015 16:24, Joshua Clayton wrote:
> > +	if (sb.st_size > 4096)
> > +		pabort("input file exceeds spidev's 4k limit");
> This is not a true. IIRC PAGE_SIZE is the default buffer size for 
> spidev, but can be changed using bufsiz module parameter.
> Just 'insmod spidev bufsiz=X', where X is number of bytes.

You are right. I will drop this. As Mark suggests.
The ioctl gives a nice error code if the buffer is too big.

...
> > +	tx = malloc(sb.st_size);
> It would be good to check new allocations for fail.

I will add a check for this. 

-- 
~Joshua Clayton
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Thread

[PATCH 0/8] spi: Add file i/o to spidev_test Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
  [PATCH 8/8] spi: Move spi code from Documentation to tools Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
    Re: [PATCH 8/8] spi: Move spi code from Documentation to tools Mark Brown <broonie@kernel.org> - 2015-11-17 19:20 +0100
  [PATCH 5/8] Documentation/spi/spidev_test.c: check error Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
  [PATCH 3/8] Documentation/spi/spidev_test.c: accept input from a file Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
    Re: [PATCH 3/8] Documentation/spi/spidev_test.c: accept input from a  file Anton Bondarenko <anton.bondarenko.sama@gmail.com> - 2015-11-17 19:30 +0100
      Re: [PATCH 3/8] Documentation/spi/spidev_test.c: accept input from a  file Mark Brown <broonie@kernel.org> - 2015-11-17 19:50 +0100
      Re: [PATCH 3/8] Documentation/spi/spidev_test.c: accept input from a file Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 20:30 +0100
  [PATCH 7/8] tools/Makefile: minor whitespace cleanup Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
    Re: [PATCH 7/8] tools/Makefile: minor whitespace cleanup Mark Brown <broonie@kernel.org> - 2015-11-17 19:10 +0100
      Re: [PATCH 7/8] tools/Makefile: minor whitespace cleanup Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 20:50 +0100
  [PATCH 6/8] Documentation/spi/spidev_test.c: fix whitespace Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
  [PATCH 2/8] Documentation/spi/spidev_test.c: clean up input_tx Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 16:30 +0100
    Re: [PATCH 2/8] Documentation/spi/spidev_test.c: clean up input_tx Mark Brown <broonie@kernel.org> - 2015-11-17 18:50 +0100
      Re: [PATCH 2/8] Documentation/spi/spidev_test.c: clean up input_tx Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 20:30 +0100
        Re: [PATCH 2/8] Documentation/spi/spidev_test.c: clean up input_tx Mark Brown <broonie@kernel.org> - 2015-11-18 00:00 +0100
  Re: [PATCH 0/8] spi: Add file i/o to spidev_test Mark Brown <broonie@kernel.org> - 2015-11-17 16:40 +0100
    Re: [PATCH 0/8] spi: Add file i/o to spidev_test Joshua Clayton <stillcompiling@gmail.com> - 2015-11-17 17:20 +0100
      Re: [PATCH 0/8] spi: Add file i/o to spidev_test Mark Brown <broonie@kernel.org> - 2015-11-17 18:00 +0100
      [PATCH v2 0/6] spi: Add file i/o to spidev_test Joshua Clayton <stillcompiling@gmail.com> - 2015-11-18 23:40 +0100
        [PATCH v2 1/6] spi: Move spi code from Documentation to tools Joshua Clayton <stillcompiling@gmail.com> - 2015-11-18 23:40 +0100
        [PATCH v2 6/6] spi: spidev_test: fix whitespace Joshua Clayton <stillcompiling@gmail.com> - 2015-11-18 23:40 +0100
        [PATCH v2 5/6] spi: spidev_test: check error Joshua Clayton <stillcompiling@gmail.com> - 2015-11-18 23:40 +0100
        [PATCH v2 2/6] spi: spidev_test: transfer_escaped_string function Joshua Clayton <stillcompiling@gmail.com> - 2015-11-18 23:40 +0100
        [PATCH v2 4/6] spi: spidev_test: output to a file Joshua Clayton <stillcompiling@gmail.com> - 2015-11-18 23:40 +0100

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