Commit e7e5d608 authored by Tomas Mraz's avatar Tomas Mraz Committed by Matt Caswell
Browse files

Add a comment for the added cast with explanation. 



Reviewed-by: default avatarTim Hudson <tjh@openssl.org>
Reviewed-by: default avatarMatt Caswell <matt@openssl.org>
parent 3f8d1216

engines/afalg/e_afalg.c

+4 −0
Original line number Diff line number Diff line
@@ -230,6 +230,10 @@ int afalg_fin_cipher_aio(afalg_aio *aio, int sfd, unsigned char *buf, 
    memset(cb, '\0', sizeof(*cb));

    cb->aio_fildes = sfd;

    cb->aio_lio_opcode = IOCB_CMD_PREAD;

    /*

     * The pointer has to be converted to unsigned value first to avoid

     * sign extension on cast to 64 bit value

     */

    cb->aio_buf = (uint64_t)(unsigned long)buf;

    cb->aio_offset = 0;

    cb->aio_data = 0;