From f11d32dfaa0753cfab7b2e5052923e8784a3c141 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Mon, 22 Sep 2008 19:16:20 -0700 Subject: [PATCH] mISDN: endian annotations for struct zt Found two possible bugs where the z1 value was used directly without byteswapping. Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/isdn/hardware/mISDN/hfc_pci.h | 4 ++-- drivers/isdn/hardware/mISDN/hfcpci.c | 9 ++++----- 2 files changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/isdn/hardware/mISDN/hfc_pci.h b/drivers/isdn/hardware/mISDN/hfc_pci.h index fd2c9be6d849..5783d22a18fe 100644 --- a/drivers/isdn/hardware/mISDN/hfc_pci.h +++ b/drivers/isdn/hardware/mISDN/hfc_pci.h @@ -183,8 +183,8 @@ #define D_FREG_MASK 0xF struct zt { - unsigned short z1; /* Z1 pointer 16 Bit */ - unsigned short z2; /* Z2 pointer 16 Bit */ + __le16 z1; /* Z1 pointer 16 Bit */ + __le16 z2; /* Z2 pointer 16 Bit */ }; struct dfifo { diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c index 9cf5edbb1a9b..9f808ecc6898 100644 --- a/drivers/isdn/hardware/mISDN/hfcpci.c +++ b/drivers/isdn/hardware/mISDN/hfcpci.c @@ -366,8 +366,7 @@ static void hfcpci_clear_fifo_tx(struct hfc_pci *hc, int fifo) bzt->f2 = MAX_B_FRAMES; bzt->f1 = bzt->f2; /* init F pointers to remain constant */ bzt->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1); - bzt->za[MAX_B_FRAMES].z2 = cpu_to_le16( - le16_to_cpu(bzt->za[MAX_B_FRAMES].z1 - 1)); + bzt->za[MAX_B_FRAMES].z2 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 2); if (fifo_state) hc->hw.fifo_en |= fifo_state; Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); @@ -482,7 +481,7 @@ receive_dmsg(struct hfc_pci *hc) df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) | (MAX_D_FRAMES + 1); /* next buffer */ df->za[df->f2 & D_FREG_MASK].z2 = - cpu_to_le16((zp->z2 + rcnt) & (D_FIFO_SIZE - 1)); + cpu_to_le16((le16_to_cpu(zp->z2) + rcnt) & (D_FIFO_SIZE - 1)); } else { dch->rx_skb = mI_alloc_skb(rcnt - 3, GFP_ATOMIC); if (!dch->rx_skb) { @@ -526,7 +525,7 @@ receive_dmsg(struct hfc_pci *hc) int hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata) { - unsigned short *z1r, *z2r; + __le16 *z1r, *z2r; int new_z2, fcnt, maxlen; u_char *ptr, *ptr1; @@ -724,7 +723,7 @@ hfcpci_fill_fifo(struct bchannel *bch) struct bzfifo *bz; u_char *bdata; u_char new_f1, *src, *dst; - unsigned short *z1t, *z2t; + __le16 *z1t, *z2t; if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO)) printk(KERN_DEBUG "%s\n", __func__);