Get C function name by keyword

As below C sample, Is any shell command could get/parsing founction name based on insided keyword.

such as below C, then

$ foo netif_carrier_on

then output

mii_check_link

484 void mii_check_link (struct mii_if_info *mii)
485 {
486         int cur_link = mii_link_ok(mii);
487         int prev_link = netif_carrier_ok(mii->dev);
488
489         if (cur_link && !prev_link)
490                 netif_carrier_on(mii->dev);
491         else if (prev_link && !cur_link)
492                 netif_carrier_off(mii->dev);
493 }