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22ccb0a1c5
Attributes of iio providers are exposed via sysfs. Typically, providers pass attribute values to the iio core, which handles formatting and printing to sysfs. However, some attributes, such as labels or extended info, are directly formatted and printed to sysfs by provider drivers using sysfs_emit() and sysfs_emit_at(). These helpers assume the read buffer, allocated by sysfs fop, is page-aligned. When these attributes are accessed by consumer drivers, the read buffer is allocated by the consumer and may not be page-aligned, leading to failures in the provider's callback that utilizes sysfs_emit*. Add a check to ensure that read buffers for labels and external info attributes are page-aligned. Update the prototype documentation as well. Signed-off-by: Matteo Martelli <matteomartelli3@gmail.com> Link: https://patch.msgid.link/20241202-iio-kmalloc-align-v1-1-aa9568c03937@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> |
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| drivers | ||
| fs | ||
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| init | ||
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| ipc | ||
| kernel | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.