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The warnings were found by running scripts/kernel-doc, which is caused by using 'make W=1'. fs/btrfs/extent_io.c:3210: warning: Function parameter or member 'bio_ctrl' not described in 'btrfs_bio_add_page' fs/btrfs/extent_io.c:3210: warning: Excess function parameter 'bio' description in 'btrfs_bio_add_page' fs/btrfs/extent_io.c:3210: warning: Excess function parameter 'prev_bio_flags' description in 'btrfs_bio_add_page' fs/btrfs/space-info.c:1602: warning: Excess function parameter 'root' description in 'btrfs_reserve_metadata_bytes' fs/btrfs/space-info.c:1602: warning: Function parameter or member 'fs_info' not described in 'btrfs_reserve_metadata_bytes' Note: this is fixing only the warnings regarding parameter list, the first line is not strictly conforming to the kdoc format as the btrfs codebase does not stick to that and keeps the first line more free form (because it's only for internal use). Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: David Sterba <dsterba@suse.com> [ add note ] Signed-off-by: David Sterba <dsterba@suse.com>
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 Restructured Text 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.