Commit 29693e75 authored by Jag Raman's avatar Jag Raman Committed by David S. Miller
Browse files

sparc64: enhance ldc_abort to print message 



Enhance ldc_abort to accept a message to be printed when it is called. Add
a macro, LDC_ABORT, to print info. about the function that calls ldc_abort.

Signed-off-by: default avatarJagannathan Raman <jag.raman@oracle.com>
Reviewed-by: default avatarAaron Young <aaron.young@oracle.com>
Reviewed-by: default avatarAlexandre Chartre <alexandre.chartre@oracle.com>
Reviewed-by: default avatarBijan Mottahedeh <bijan.mottahedeh@oracle.com>
Reviewed-by: default avatarLiam Merwick <liam.merwick@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 85762a65

arch/sparc/kernel/ldc.c

+28 −25
Original line number Diff line number Diff line
@@ -177,6 +177,8 @@ do { if (lp->cfg.debug & LDC_DEBUG_##TYPE) \ 
		printk(KERN_INFO PFX "ID[%lu] " f, lp->id, ## a); \

} while (0)



#define	LDC_ABORT(lp)	ldc_abort((lp), __func__)



static const char *state_to_str(u8 state)

{

	switch (state) {
@@ -506,11 +508,12 @@ static int send_data_nack(struct ldc_channel *lp, struct ldc_packet *data_pkt) 
	return err;

}



static int ldc_abort(struct ldc_channel *lp)

static int ldc_abort(struct ldc_channel *lp, const char *msg)

{

	unsigned long hv_err;



	ldcdbg(STATE, "ABORT\n");

	ldcdbg(STATE, "ABORT[%s]\n", msg);

	ldc_print(lp);



	/* We report but do not act upon the hypervisor errors because

	 * there really isn't much we can do if they fail at this point.
@@ -595,7 +598,7 @@ static int process_ver_info(struct ldc_channel *lp, struct ldc_version *vp) 
		}

	}

	if (err)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	return 0;

}
@@ -608,13 +611,13 @@ static int process_ver_ack(struct ldc_channel *lp, struct ldc_version *vp) 
	if (lp->hs_state == LDC_HS_GOTVERS) {

		if (lp->ver.major != vp->major ||

		    lp->ver.minor != vp->minor)

			return ldc_abort(lp);

			return LDC_ABORT(lp);

	} else {

		lp->ver = *vp;

		lp->hs_state = LDC_HS_GOTVERS;

	}

	if (send_rts(lp))

		return ldc_abort(lp);

		return LDC_ABORT(lp);

	return 0;

}
@@ -625,17 +628,17 @@ static int process_ver_nack(struct ldc_channel *lp, struct ldc_version *vp) 
	unsigned long new_tail;



	if (vp->major == 0 && vp->minor == 0)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	vap = find_by_major(vp->major);

	if (!vap)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	p = handshake_compose_ctrl(lp, LDC_INFO, LDC_VERS,

					   vap, sizeof(*vap),

					   &new_tail);

	if (!p)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	return send_tx_packet(lp, p, new_tail);

}
@@ -658,7 +661,7 @@ static int process_version(struct ldc_channel *lp, 
		return process_ver_nack(lp, vp);



	default:

		return ldc_abort(lp);

		return LDC_ABORT(lp);

	}

}
@@ -671,13 +674,13 @@ static int process_rts(struct ldc_channel *lp, 
	if (p->stype     != LDC_INFO	   ||

	    lp->hs_state != LDC_HS_GOTVERS ||

	    p->env       != lp->cfg.mode)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	lp->snd_nxt = p->seqid;

	lp->rcv_nxt = p->seqid;

	lp->hs_state = LDC_HS_SENTRTR;

	if (send_rtr(lp))

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	return 0;

}
@@ -690,7 +693,7 @@ static int process_rtr(struct ldc_channel *lp, 


	if (p->stype     != LDC_INFO ||

	    p->env       != lp->cfg.mode)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	lp->snd_nxt = p->seqid;

	lp->hs_state = LDC_HS_COMPLETE;
@@ -713,7 +716,7 @@ static int process_rdx(struct ldc_channel *lp, 


	if (p->stype != LDC_INFO ||

	    !(rx_seq_ok(lp, p->seqid)))

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	lp->rcv_nxt = p->seqid;
@@ -740,14 +743,14 @@ static int process_control_frame(struct ldc_channel *lp, 
		return process_rdx(lp, p);



	default:

		return ldc_abort(lp);

		return LDC_ABORT(lp);

	}

}



static int process_error_frame(struct ldc_channel *lp,

			       struct ldc_packet *p)

{

	return ldc_abort(lp);

	return LDC_ABORT(lp);

}



static int process_data_ack(struct ldc_channel *lp,
@@ -766,7 +769,7 @@ static int process_data_ack(struct ldc_channel *lp, 
			return 0;

		}

		if (head == lp->tx_tail)

			return ldc_abort(lp);

			return LDC_ABORT(lp);

	}



	return 0;
@@ -870,7 +873,7 @@ handshake_complete: 
			break;



		default:

			err = ldc_abort(lp);

			err = LDC_ABORT(lp);

			break;

		}
@@ -885,7 +888,7 @@ handshake_complete: 


		err = __set_rx_head(lp, new);

		if (err < 0) {

			(void) ldc_abort(lp);

			(void) LDC_ABORT(lp);

			break;

		}

		if (lp->hs_state == LDC_HS_COMPLETE)
@@ -1505,7 +1508,7 @@ static int read_raw(struct ldc_channel *lp, void *buf, unsigned int size) 
					&lp->rx_tail,

					&lp->chan_state);

	if (hv_err)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	if (lp->chan_state == LDC_CHANNEL_DOWN ||

	    lp->chan_state == LDC_CHANNEL_RESETTING)
@@ -1548,7 +1551,7 @@ static int write_nonraw(struct ldc_channel *lp, const void *buf, 
		return -EBUSY;



	if (unlikely(lp->chan_state != LDC_CHANNEL_UP))

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	if (!tx_has_space_for(lp, size))

		return -EAGAIN;
@@ -1616,7 +1619,7 @@ static int rx_bad_seq(struct ldc_channel *lp, struct ldc_packet *p, 


	err = ldc_rx_reset(lp);

	if (err < 0)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	return 0;

}
@@ -1629,7 +1632,7 @@ static int data_ack_nack(struct ldc_channel *lp, struct ldc_packet *p) 
			return err;

	}

	if (p->stype & LDC_NACK)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	return 0;

}
@@ -1649,7 +1652,7 @@ static int rx_data_wait(struct ldc_channel *lp, unsigned long cur_head) 
						&lp->rx_tail,

						&lp->chan_state);

		if (hv_err)

			return ldc_abort(lp);

			return LDC_ABORT(lp);



		if (lp->chan_state == LDC_CHANNEL_DOWN ||

		    lp->chan_state == LDC_CHANNEL_RESETTING)
@@ -1672,7 +1675,7 @@ static int rx_set_head(struct ldc_channel *lp, unsigned long head) 
	int err = __set_rx_head(lp, head);



	if (err < 0)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	lp->rx_head = head;

	return 0;
@@ -1711,7 +1714,7 @@ static int read_nonraw(struct ldc_channel *lp, void *buf, unsigned int size) 
					&lp->rx_tail,

					&lp->chan_state);

	if (hv_err)

		return ldc_abort(lp);

		return LDC_ABORT(lp);



	if (lp->chan_state == LDC_CHANNEL_DOWN ||

	    lp->chan_state == LDC_CHANNEL_RESETTING)

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