staging: brcm80211: use int_sqrt kernel function iso driver implementation

The driver code had its own implementation for fixed point square root
calculation, but such a function is already available in the linux
kernel so the driver implementation has been removed using the kernel
function.

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Reviewed-by: Roland Vossen <rvossen@broadcoom.com>
Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 19 deletions

diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
index 8b86e37c361..7837c73023f 100644
--- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
+++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
@@ -3117,25 +3117,6 @@ u8 wlc_phy_nbits(s32 value)
         return nbits;
 }
 
-u32 wlc_phy_sqrt_int(u32 value)
-{
-        u32 root = 0, shift = 0;
-
-        for (shift = 0; shift < 32; shift += 2) {
-                if (((0x40000000 >> shift) + root) <= value) {
-                        value -= ((0x40000000 >> shift) + root);
-                        root = (root >> 1) | (0x40000000 >> shift);
-                } else {
-                        root = root >> 1;
-                }
-        }
-
-        if (root < value)
-                ++root;
-
-        return root;
-}
-
 void wlc_phy_stf_chain_init(wlc_phy_t *pih, u8 txchain, u8 rxchain)
 {
         phy_info_t *pi = (phy_info_t *) pih;