On Wed, 2022-04-06 at 08:18 +0200, Michael Straube wrote: > Use in-kernel round_up() instead of custom RND4(). [] > diff --git a/drivers/staging/r8188eu/core/rtw_security.c b/drivers/staging/r8188eu/core/rtw_security.c [] > @@ -63,7 +63,7 @@ void rtw_wep_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe) > arc4_crypt(ctx, payload + length, crc.f1, 4); > > pframe += pxmitpriv->frag_len; > - pframe = (u8 *)RND4((size_t)(pframe)); > + pframe = (u8 *)round_up((size_t)pframe, 4); Perhaps use PTR_ALIGN pframe = PTR_ALIGN(pframe, 4); etc...