linux-stable.git/tools/spi, branch linux-4.8.y

spi: spidev_test: fix build with musl libc

2016-11-21T09:11:37+00:00

commit 8736f8022e532a3c1d8873aac78e1113c6ffc3b9 upstream.

spidev.h uses _IOC_SIZEBITS directly. musl libc does not provide this macro
unless linux/ioctl.h is included explicitly. Fixes build failures like:

In file included from .../host/usr/arm-buildroot-linux-musleabihf/sysroot/usr/include/sys/ioctl.h:7:0,
                 from .../build/spidev_test-v3.15/spidev_test.c:20:
.../build/spidev_test-v3.15/spidev_test.c: In function ‘transfer’:
.../build/spidev_test-v3.15/spidev_test.c:75:18: error: ‘_IOC_SIZEBITS’ undeclared (first use in this function)
  ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
                  ^

Signed-off-by: Baruch Siach 
Signed-off-by: Mark Brown 
Cc: Ralph Sennhauser 
Signed-off-by: Greg Kroah-Hartman

spi: spidev_test: Fix buffer overflow in unescape()

2016-10-28T07:45:18+00:00

commit 0278b34bf15f8d8a609595b15909cd8622dd64ca upstream.

Sometimes spidev_test crashes with:

    *** Error in `spidev_test': munmap_chunk(): invalid pointer: 0x00022020 ***
    Aborted

or just

    Segmentation fault

This is due to transfer_escaped_string() miscalculating the required
size of the buffer by one byte, causing a buffer overflow in unescape().

Drop the bogus "+ 1" in the strlen() parameter to fix this.

Note that unescape() never copies the zero-terminator of the source
string, so it writes at most as many bytes as the length of the source
string.

Fixes: 30061915be6e3a2c (spi: spidev_test: Added input buffer from the terminal)
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

spi: spidev_test: Fix typo in error message

2015-12-08T17:58:56+00:00

Fix the spelling of 'output' in the error message.

Signed-off-by: Fabio Estevam 
Signed-off-by: Mark Brown

spi: tools: move spidev_test metadata

2015-11-30T12:14:12+00:00

Now that spidev_test and spidev_fdx have been moved, remove them
from the Documentation index and move their .gitignore file.

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown

spi: spidev_test: fix whitespace

2015-11-23T14:54:01+00:00

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown

spi: spidev_test: check error

2015-11-23T14:54:01+00:00

Check the result of sscanf to verify a result was found.
report and error and abort if pattern was not found.

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown

spi: spidev_test: output to a file

2015-11-23T14:54:01+00:00

For testing of larger data transfers, output unmodified data
directly to a file.

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown

spi: spidev_test: accept input from a file

2015-11-23T14:54:01+00:00

Add input file support to facilitate testing larger data.

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown

spi: spidev_test: transfer_escaped_string function

2015-11-23T14:54:01+00:00

Move the input_tx code into its own small function.
This cleans up some variables from main() that are used only here.
While we are at it, check malloc calls instead of assuming they succeed.

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown

spi: Move spi code from Documentation to tools

2015-11-23T14:54:01+00:00

Jon Corbet requested this code moved with the last changeset,
https://lkml.org/lkml/2015/3/1/144,
but the patch was not applied because it missed the Makefile.
Moved spidev_test, spidev_fdx and their Makefile infrastructure.

Signed-off-by: Joshua Clayton 
Signed-off-by: Mark Brown