• Stephen Boyd's avatar
    simple_open: automatically convert to simple_open() · 234e3405
    Stephen Boyd authored
    Many users of debugfs copy the implementation of default_open() when
    they want to support a custom read/write function op.  This leads to a
    proliferation of the default_open() implementation across the entire
    tree.
    
    Now that the common implementation has been consolidated into libfs we
    can replace all the users of this function with simple_open().
    
    This replacement was done with the following semantic patch:
    
    <smpl>
    @ open @
    identifier open_f != simple_open;
    identifier i, f;
    @@
    -int open_f(struct inode *i, struct file *f)
    -{
    (
    -if (i->i_private)
    -f->private_data = i->i_private;
    |
    -f->private_data = i->i_private;
    )
    -return 0;
    -}
    
    @ has_open depends on open @
    identifier fops;
    identifier open.open_f;
    @@
    struct file_operations fops = {
    ...
    -.open = open_f,
    +.open = simple_open,
    ...
    };
    </smpl>
    
    [akpm@linux-foundation.org: checkpatch fixes]
    Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Cc: Julia Lawall <Julia.Lawall@lip6.fr>
    Acked-by: default avatarIngo Molnar <mingo@elte.hu>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    234e3405
ec_sys.c 3.2 KB