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    Subject[PATCH v3 04/11] fbdev: export get_fb_info()/put_fb_info()
    Date
    When adding other internal users of the framebuffer subsystem, we need a
    way to get references to framebuffers. These two functions already exist
    so export them.

    Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
    ---
    drivers/video/fbmem.c | 6 ++++--
    include/linux/fb.h | 3 +++
    2 files changed, 7 insertions(+), 2 deletions(-)

    diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
    index 0dff12a..1312ba2 100644
    --- a/drivers/video/fbmem.c
    +++ b/drivers/video/fbmem.c
    @@ -46,7 +46,7 @@ static DEFINE_MUTEX(registration_lock);
    struct fb_info *registered_fb[FB_MAX] __read_mostly;
    int num_registered_fb __read_mostly;

    -static struct fb_info *get_fb_info(unsigned int idx)
    +struct fb_info *get_fb_info(unsigned int idx)
    {
    struct fb_info *fb_info;

    @@ -61,14 +61,16 @@ static struct fb_info *get_fb_info(unsigned int idx)

    return fb_info;
    }
    +EXPORT_SYMBOL_GPL(get_fb_info);

    -static void put_fb_info(struct fb_info *fb_info)
    +void put_fb_info(struct fb_info *fb_info)
    {
    if (!atomic_dec_and_test(&fb_info->count))
    return;
    if (fb_info->fbops->fb_destroy)
    fb_info->fbops->fb_destroy(fb_info);
    }
    +EXPORT_SYMBOL_GPL(put_fb_info);

    int lock_fb_info(struct fb_info *info)
    {
    diff --git a/include/linux/fb.h b/include/linux/fb.h
    index ac3f1c6..2d51c0e 100644
    --- a/include/linux/fb.h
    +++ b/include/linux/fb.h
    @@ -1033,6 +1033,9 @@ static inline void unlock_fb_info(struct fb_info *info)
    mutex_unlock(&info->lock);
    }

    +extern struct fb_info *get_fb_info(unsigned int idx);
    +extern void put_fb_info(struct fb_info *fb_info);
    +
    static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
    u8 *src, u32 s_pitch, u32 height)
    {
    --
    1.7.11.2


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