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If ffs-test is used with a kernel prior to 3.14, which do not
support the new descriptors format, it will fail when trying to
write the descriptors. Add a function that converts the new
descriptors to the legacy ones and use it to retry writing the
descriptors using the legacy format.
Also add “-l” flag to ffs-test which will cause the tool to
never try the new format and instead immediatelly try the
legacy one. This should be useful to test whether parsing
of the old format still works on given 3.14+ kernel.
Signed-off-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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Since commit [ac8dde11: “Add flags to descriptors block”] functionfs
supports a new, more powerful and extensible, descriptor format.
Since ffs-test is probably the first thing users of the functionfs
interface see when they start writing functionfs user space daemons,
convert it to use the new format thus promoting it.
Signed-off-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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It appears that no one ever run ffs-test on a big-endian machine,
since it used cpu-endianess for fs_count and hs_count fields which
should be in little-endian format. Fix by wrapping the numbers in
cpu_to_le32.
Cc: [email protected]
Signed-off-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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error"
This reverts commit f2af74123f8c5a735248547f4286a3adc28633c1.
There is a better fix for this build error coming in a following
patch.
Signed-of-by: Felipe Balbi <[email protected]>
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Commit [ac8dde11: “usb: gadget: f_fs: Add flags to descriptors block”]
which introduced a new descriptor format for FunctionFS removed the
usb_functionfs_descs_head structure, which is still used by ffs-test.
tool.
Convert ffs-test by converting it to use the new header format. For
testing kernels prior to 3.14 (when the new format was introduced) and
parsing of the legacy headers in the new kernels, provide a compilation
flag to make the tool use the old format.
Finally, include information as to when the legacy FunctionFS headers
format has been deprecated (which is also when the new one has been
introduced).
Reported-by: Lad, Prabhakar <[email protected]>
Signed-off-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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Fixes this build failure:
gcc -Wall -Wextra -g -lpthread -I../include -o testusb testusb.c
gcc -Wall -Wextra -g -lpthread -I../include -o ffs-test ffs-test.c
In file included from ffs-test.c:41:0:
../../include/linux/usb/functionfs.h:4:39: fatal error:
uapi/linux/usb/functionfs.h: No such file or directory
compilation terminated.
make: *** [ffs-test] Error 1
Signed-off-by: Maxin B. John <[email protected]>
Acked-by: Michal Nazarewicz <[email protected]>
Cc: stable <[email protected]> # 3.7+
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The out functions should only handle actual available data instead of the complete buffer.
Otherwise for example the ep0_consume function will report ghost events since it tries to decode
the complete buffer - which may contain partly invalid data.
Signed-off-by: Matthias Fend <[email protected]>
Cc: stable <[email protected]>
Acked-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/build changes from Ingo Molnar.
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, build: Fix portability issues when cross-building
x86, tools: Remove unneeded header files from tools/build.c
USB: ffs-test: Don't duplicate {get,put}_unaligned*() functions
x86, efi: Fix endian issues and unaligned accesses
x86, boot: Restrict CFLAGS for hostprogs
x86, mkpiggy: Don't open code put_unaligned_le32()
x86, relocs: Don't open code put_unaligned_le32()
tools/include: Add byteshift headers for endian access
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Use the header file in tools/include instead of duplicating the endian
functions.
Cc: Davidlohr Bueso <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Matt Fleming <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: H. Peter Anvin <[email protected]>
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The [email protected] email address is no longer valid,
so this commit replaces it with [email protected] which is
employer-agnostic and thus should be valid for foreseeable
feature.
Signed-off-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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When compiling this program the functionfs.h header cannot be found, producing:
ffs-test.c:40: fatal error: linux/usb/functionfs.h: No such file or directory
This patch also fixes the following warning:
ffs-test.c:453: warning: format ‘%4d’ expects type ‘int’, but argument 3 has type ‘size_t’
Signed-off-by: Davidlohr Bueso <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This adds an example user-space FunctionFS driver which
implements a source/sink interface used for testing.
Signed-off-by: Michal Nazarewicz <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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