* [PATCH net-next 3/3] net: dsa: mv88e6xxx: Add support for EEPROM via platform data
From: Andrew Lunn @ 2018-05-19 20:31 UTC (permalink / raw)
To: David Miller; +Cc: Vivien Didelot, Florian Fainelli, netdev, Andrew Lunn
In-Reply-To: <1526761895-15839-1-git-send-email-andrew@lunn.ch>
Add the size of the EEPROM to the platform data, so it can also be
instantiated by a platform device.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
drivers/net/dsa/mv88e6xxx/chip.c | 11 +++++++----
drivers/net/dsa/mv88e6xxx/chip.h | 2 +-
include/linux/platform_data/mv88e6xxx.h | 1 +
3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 5b40382036ea..1fa1f820a437 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4386,7 +4386,6 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
struct device_node *np = dev->of_node;
const struct mv88e6xxx_info *compat_info;
struct mv88e6xxx_chip *chip;
- u32 eeprom_len;
int port;
int err;
@@ -4436,9 +4435,13 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
mv88e6xxx_phy_init(chip);
- if (chip->info->ops->get_eeprom &&
- !of_property_read_u32(np, "eeprom-length", &eeprom_len))
- chip->eeprom_len = eeprom_len;
+ if (chip->info->ops->get_eeprom) {
+ if (np)
+ of_property_read_u32(np, "eeprom-length",
+ &chip->eeprom_len);
+ else
+ chip->eeprom_len = pdata->eeprom_len;
+ }
mutex_lock(&chip->reg_lock);
err = mv88e6xxx_switch_reset(chip);
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 012268046442..8ac3fbb15352 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -238,7 +238,7 @@ struct mv88e6xxx_chip {
struct gpio_desc *reset;
/* set to size of eeprom if supported by the switch */
- int eeprom_len;
+ u32 eeprom_len;
/* List of mdio busses */
struct list_head mdios;
diff --git a/include/linux/platform_data/mv88e6xxx.h b/include/linux/platform_data/mv88e6xxx.h
index 88e91e05f48f..f63af2955ea0 100644
--- a/include/linux/platform_data/mv88e6xxx.h
+++ b/include/linux/platform_data/mv88e6xxx.h
@@ -12,6 +12,7 @@ struct dsa_mv88e6xxx_pdata {
const char *compatible;
unsigned int enabled_ports;
struct net_device *netdev;
+ u32 eeprom_len;
};
#endif
--
2.17.0
^ permalink raw reply related
* [PATCH net-next 1/3] net: dsa: mv88e6xxx: Remove OF check for IRQ domain
From: Andrew Lunn @ 2018-05-19 20:31 UTC (permalink / raw)
To: David Miller; +Cc: Vivien Didelot, Florian Fainelli, netdev, Andrew Lunn
In-Reply-To: <1526761895-15839-1-git-send-email-andrew@lunn.ch>
An IRQ domain will work without an OF node. It is not possible to
reference interrupts via a phandle, but C code can still use
irq_find_mapping() to get an interrupt from the domain.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
drivers/net/dsa/mv88e6xxx/global2.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index f9bde011a3e6..91a3cb2452ac 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -1047,9 +1047,6 @@ int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip)
{
int err, irq, virq;
- if (!chip->dev->of_node)
- return -EINVAL;
-
chip->g2_irq.domain = irq_domain_add_simple(
chip->dev->of_node, 16, 0, &mv88e6xxx_g2_irq_domain_ops, chip);
if (!chip->g2_irq.domain)
--
2.17.0
^ permalink raw reply related
* [PATCH 0/3] sh_eth: fix typos/grammar
From: Sergei Shtylyov @ 2018-05-19 20:57 UTC (permalink / raw)
To: netdev, David S. Miller; +Cc: linux-renesas-soc
Hello!
Here's a set of 3 patches against DaveM's 'net-next.git' repo plus the R8A77980
support patches posted earlier. They fix the comments typos/grammar and another
typo in the EESR bit...
[1/1] sh_eth: fix typo in EESR.TRO bit name
[2/3] sh_eth: fix comment grammar in 'struct sh_eth_cpu_data'
[3/3] sh_eth: fix typo in comment to BCULR write
MBR, Sergei
^ permalink raw reply
* Re: [PATCH RFC net-next 1/1] tcp: close socket without reset on incoming data
From: David Miller @ 2018-05-19 21:00 UTC (permalink / raw)
To: dbanerje; +Cc: netdev, kuznet, yoshfuji
In-Reply-To: <20180518190141.899-2-dbanerje@akamai.com>
From: Debabrata Banerjee <dbanerje@akamai.com>
Date: Fri, 18 May 2018 15:01:41 -0400
> When TCP_CLOSE_NORST is set before a close(), offload sinking of
> unwanted data to the kernel with low resource usage, with a timeout of
> TCP_LINGER2. The socket will transition to FIN_WAIT1 and then FIN_WAIT2
> where it will ack data until either the timeout is hit, or a RST or FIN
> is received.
>
> Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com>
This is a very serious protocol violation.
You're telling the remote end that you received the data even though
the socket was closed and nothing actually "sunk" the bytes.
This doesn't even go into the issues of sending cumulative ACKs in
response to data which is arbitrarily out-of-order.
The whole problem is that the post data is sent before the client
looks to see if the server is willing to accept the post data or not.
A: I'd like to send you 200MB of crap
[ 200MB of craaaa...
B: Sorry I won't be accepting that, please don't send it.
CLOSE, send reset since some of crap is queued up and
was never read
A: aaaaapp... received RESET
A: Why didn't B accept my 200MB of crap?
Sorry, you'll need to deal with this issue in another way.
Thanks.
^ permalink raw reply
* [PATCH 1/3] sh_eth: fix typo in EESR.TRO bit name
From: Sergei Shtylyov @ 2018-05-19 21:02 UTC (permalink / raw)
To: netdev, David S. Miller; +Cc: linux-renesas-soc
In-Reply-To: <d47afee4-6fd5-af6d-885c-5b07996749fc@cogentembedded.com>
The correct name of the EESR bit 8 is TRO (transmit retry over), not RTO.
Note that EESIPR bit 8, TROIP remained correct...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
---
drivers/net/ethernet/renesas/sh_eth.c | 10 +++++-----
drivers/net/ethernet/renesas/sh_eth.h | 4 ++--
2 files changed, 7 insertions(+), 7 deletions(-)
Index: net-next/drivers/net/ethernet/renesas/sh_eth.c
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c
+++ net-next/drivers/net/ethernet/renesas/sh_eth.c
@@ -706,7 +706,7 @@ static struct sh_eth_cpu_data rcar_gen1_
EESIPR_RTLFIP | EESIPR_RTSFIP |
EESIPR_PREIP | EESIPR_CERFIP,
- .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
+ .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
.eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
.fdr_value = 0x00000f0f,
@@ -738,7 +738,7 @@ static struct sh_eth_cpu_data rcar_gen2_
EESIPR_RTLFIP | EESIPR_RTSFIP |
EESIPR_PREIP | EESIPR_CERFIP,
- .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
+ .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
.eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
.fdr_value = 0x00000f0f,
@@ -774,7 +774,7 @@ static struct sh_eth_cpu_data r8a77980_d
EESIPR_RTLFIP | EESIPR_RTSFIP |
EESIPR_PREIP | EESIPR_CERFIP,
- .tx_check = EESR_FTC | EESR_CD | EESR_RTO,
+ .tx_check = EESR_FTC | EESR_CD | EESR_TRO,
.eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
EESR_RFE | EESR_RDE | EESR_RFRMER |
EESR_TFE | EESR_TDE | EESR_ECI,
@@ -831,7 +831,7 @@ static struct sh_eth_cpu_data sh7724_dat
EESIPR_RTLFIP | EESIPR_RTSFIP |
EESIPR_PREIP | EESIPR_CERFIP,
- .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
+ .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
.eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
@@ -876,7 +876,7 @@ static struct sh_eth_cpu_data sh7757_dat
EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
EESIPR_PREIP | EESIPR_CERFIP,
- .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
+ .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
.eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
Index: net-next/drivers/net/ethernet/renesas/sh_eth.h
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.h
+++ net-next/drivers/net/ethernet/renesas/sh_eth.h
@@ -243,7 +243,7 @@ enum EESR_BIT {
EESR_CND = 0x00000800,
EESR_DLC = 0x00000400,
EESR_CD = 0x00000200,
- EESR_RTO = 0x00000100,
+ EESR_TRO = 0x00000100,
EESR_RMAF = 0x00000080,
EESR_CEEF = 0x00000040,
EESR_CELF = 0x00000020,
@@ -263,7 +263,7 @@ enum EESR_BIT {
EESR_CERF) /* Recv frame CRC error */
#define DEFAULT_TX_CHECK (EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | \
- EESR_RTO)
+ EESR_TRO)
#define DEFAULT_EESR_ERR_CHECK (EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | \
EESR_RDE | EESR_RFRMER | EESR_ADE | \
EESR_TFE | EESR_TDE)
^ permalink raw reply
* [PATCH 2/3] sh_eth: fix comment grammar in 'struct sh_eth_cpu_data'
From: Sergei Shtylyov @ 2018-05-19 21:03 UTC (permalink / raw)
To: netdev, David S. Miller; +Cc: linux-renesas-soc
In-Reply-To: <d47afee4-6fd5-af6d-885c-5b07996749fc@cogentembedded.com>
All the verbs in the comments to the 'struct sh_eth_cpu_data' declaration
should be in a 3rd person singular, to match the nouns.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
---
drivers/net/ethernet/renesas/sh_eth.h | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
Index: net-next/drivers/net/ethernet/renesas/sh_eth.h
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.h
+++ net-next/drivers/net/ethernet/renesas/sh_eth.h
@@ -499,21 +499,21 @@ struct sh_eth_cpu_data {
/* hardware features */
unsigned long irq_flags; /* IRQ configuration flags */
- unsigned no_psr:1; /* EtherC DO NOT have PSR */
- unsigned apr:1; /* EtherC have APR */
- unsigned mpr:1; /* EtherC have MPR */
- unsigned tpauser:1; /* EtherC have TPAUSER */
- unsigned bculr:1; /* EtherC have BCULR */
- unsigned tsu:1; /* EtherC have TSU */
- unsigned hw_swap:1; /* E-DMAC have DE bit in EDMR */
+ unsigned no_psr:1; /* EtherC DOES NOT have PSR */
+ unsigned apr:1; /* EtherC has APR */
+ unsigned mpr:1; /* EtherC has MPR */
+ unsigned tpauser:1; /* EtherC has TPAUSER */
+ unsigned bculr:1; /* EtherC has BCULR */
+ unsigned tsu:1; /* EtherC has TSU */
+ unsigned hw_swap:1; /* E-DMAC has DE bit in EDMR */
unsigned nbst:1; /* E-DMAC has NBST bit in EDMR */
- unsigned rpadir:1; /* E-DMAC have RPADIR */
- unsigned no_trimd:1; /* E-DMAC DO NOT have TRIMD */
- unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */
+ unsigned rpadir:1; /* E-DMAC has RPADIR */
+ unsigned no_trimd:1; /* E-DMAC DOES NOT have TRIMD */
+ unsigned no_ade:1; /* E-DMAC DOES NOT have ADE bit in EESR */
unsigned no_xdfar:1; /* E-DMAC DOES NOT have RDFAR/TDFAR */
unsigned xdfar_rw:1; /* E-DMAC has writeable RDFAR/TDFAR */
unsigned hw_checksum:1; /* E-DMAC has CSMR */
- unsigned select_mii:1; /* EtherC have RMII_MII (MII select register) */
+ unsigned select_mii:1; /* EtherC has RMII_MII (MII select register) */
unsigned rmiimode:1; /* EtherC has RMIIMODE register */
unsigned rtrate:1; /* EtherC has RTRATE register */
unsigned magic:1; /* EtherC has ECMR.MPDE and ECSR.MPD */
^ permalink raw reply
* Re: [PATCH 02/14] net: sched: change type of reference and bind counters
From: Marcelo Ricardo Leitner @ 2018-05-19 21:04 UTC (permalink / raw)
To: Vlad Buslov
Cc: netdev, davem, jhs, xiyou.wangcong, jiri, pablo, kadlec, fw, ast,
daniel, edumazet, keescook, linux-kernel, netfilter-devel,
coreteam, kliteyn
In-Reply-To: <1526308035-12484-3-git-send-email-vladbu@mellanox.com>
On Mon, May 14, 2018 at 05:27:03PM +0300, Vlad Buslov wrote:
> Change type of action reference counter to refcount_t.
>
> Change type of action bind counter to atomic_t.
> This type is used to allow decrementing bind counter without testing
> for 0 result.
... and in what does not testing for 0 result helps?
Marcelo
^ permalink raw reply
* [PATCH 3/3] sh_eth: fix typo in comment to BCULR write
From: Sergei Shtylyov @ 2018-05-19 21:05 UTC (permalink / raw)
To: netdev, David S. Miller; +Cc: linux-renesas-soc
In-Reply-To: <d47afee4-6fd5-af6d-885c-5b07996749fc@cogentembedded.com>
Simon has noticed a typo in the comment accompaining the BCULR write --
fix it and move the comment before the write (following the style of
the other comments), while at it...
Reported-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
---
drivers/net/ethernet/renesas/sh_eth.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: net-next/drivers/net/ethernet/renesas/sh_eth.c
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c
+++ net-next/drivers/net/ethernet/renesas/sh_eth.c
@@ -1481,8 +1481,9 @@ static int sh_eth_dev_init(struct net_de
if (mdp->cd->nbst)
sh_eth_modify(ndev, EDMR, EDMR_NBST, EDMR_NBST);
+ /* Burst cycle count upper-limit */
if (mdp->cd->bculr)
- sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */
+ sh_eth_write(ndev, 0x800, BCULR);
sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR);
^ permalink raw reply
* Re: [PATCH 04/14] net: sched: implement unlocked action init API
From: Marcelo Ricardo Leitner @ 2018-05-19 21:11 UTC (permalink / raw)
To: Jiri Pirko
Cc: Vlad Buslov, netdev, davem, jhs, xiyou.wangcong, pablo, kadlec,
fw, ast, daniel, edumazet, keescook, linux-kernel,
netfilter-devel, coreteam, kliteyn
In-Reply-To: <20180514151641.GD1848@nanopsycho>
On Mon, May 14, 2018 at 05:16:41PM +0200, Jiri Pirko wrote:
> Mon, May 14, 2018 at 04:27:05PM CEST, vladbu@mellanox.com wrote:
> >Add additional 'unlocked' argument to act API init functions.
> >Argument is true when rtnl lock is not taken and false otherwise.
> >It is required to implement actions that need to release rtnl lock before
> >loading kernel module and reacquire if afterwards.
> >
> >Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
>
> [...]
>
>
> >@@ -721,9 +722,11 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
> > a_o = tc_lookup_action_n(act_name);
> > if (a_o == NULL) {
> > #ifdef CONFIG_MODULES
> >- rtnl_unlock();
> >+ if (!unlocked)
> >+ rtnl_unlock();
> > request_module("act_%s", act_name);
> >- rtnl_lock();
> >+ if (!unlocked)
> >+ rtnl_lock();
>
> Although I don't like this conditional locking scheme, I see no other
> way to solve this :/ But I think would be better perhaps to rename
> "unlocked" to something like "rtnl_held".
Agreed. "rtnl_held" also removes the double negation, "!un...".
^ permalink raw reply
* Re: [PATCH 06/14] net: sched: implement reference counted action release
From: Marcelo Ricardo Leitner @ 2018-05-19 21:43 UTC (permalink / raw)
To: Vlad Buslov
Cc: netdev, davem, jhs, xiyou.wangcong, jiri, pablo, kadlec, fw, ast,
daniel, edumazet, keescook, linux-kernel, netfilter-devel,
coreteam, kliteyn
In-Reply-To: <1526308035-12484-7-git-send-email-vladbu@mellanox.com>
On Mon, May 14, 2018 at 05:27:07PM +0300, Vlad Buslov wrote:
...
> @@ -1052,6 +1088,36 @@ static int tca_action_flush(struct net *net, struct nlattr *nla,
> return err;
> }
>
> +static int tcf_action_delete(struct net *net, struct list_head *actions,
> + struct netlink_ext_ack *extack)
> +{
> + int ret;
Reverse christmass tree.. this line should be the last in variable
declarations.
> + struct tc_action *a, *tmp;
> + char kind[IFNAMSIZ];
> + u32 act_index;
> +
> + list_for_each_entry_safe(a, tmp, actions, list) {
> + const struct tc_action_ops *ops = a->ops;
> +
> + /* Actions can be deleted concurrently
> + * so we must save their type and id to search again
> + * after reference is released.
> + */
> + strncpy(kind, a->ops->kind, sizeof(kind) - 1);
This may be problematic. Why strncpy here?
a->ops->kind is also of size IFNAMSIZ. If a->ops->kind is actually
IFNAMSIZ-1 long, kind here won't be NULL terminated, as kind is not
initialized and strncpy won't add the NULL.
> + act_index = a->tcfa_index;
> +
> + list_del(&a->list);
> + if (tcf_action_put(a))
> + module_put(ops->owner);
> +
> + /* now do the delete */
> + ret = tcf_action_del_1(net, kind, act_index, extack);
> + if (ret < 0)
> + return ret;
> + }
> + return 0;
> +}
^ permalink raw reply
* Re: [PATCH 09/14] net: sched: don't release reference on action overwrite
From: Marcelo Ricardo Leitner @ 2018-05-19 21:52 UTC (permalink / raw)
To: Vlad Buslov
Cc: netdev, davem, jhs, xiyou.wangcong, jiri, pablo, kadlec, fw, ast,
daniel, edumazet, keescook, linux-kernel, netfilter-devel,
coreteam, kliteyn
In-Reply-To: <1526308035-12484-10-git-send-email-vladbu@mellanox.com>
On Mon, May 14, 2018 at 05:27:10PM +0300, Vlad Buslov wrote:
> Return from action init function with reference to action taken,
> even when overwriting existing action.
Isn't this patch necessary before patch 7, to not break things up?
AFAICU after patchset 7 it assumes the action init function is already
behaving like this.
^ permalink raw reply
* Re: [PATCH 10/14] net: sched: extend act API for lockless actions
From: Marcelo Ricardo Leitner @ 2018-05-19 22:17 UTC (permalink / raw)
To: Vlad Buslov
Cc: netdev, davem, jhs, xiyou.wangcong, jiri, pablo, kadlec, fw, ast,
daniel, edumazet, keescook, linux-kernel, netfilter-devel,
coreteam, kliteyn
In-Reply-To: <1526308035-12484-11-git-send-email-vladbu@mellanox.com>
Please use a more meaningful patch summary. This one is too generic.
On Mon, May 14, 2018 at 05:27:11PM +0300, Vlad Buslov wrote:
...
> +int tcf_idr_find_delete(struct tc_action_net *tn, u32 index)
What about naming it tcf_idr_delete_index() instead?
The find operation is always implicit when you don't specify the
object itself directly, and then it describes which key will be used.
> +{
> + struct tcf_idrinfo *idrinfo = tn->idrinfo;
> + struct tc_action *p;
> + int ret = 0;
> +
> + spin_lock_bh(&idrinfo->lock);
> + p = idr_find(&idrinfo->action_idr, index);
> + if (!p) {
> + spin_unlock(&idrinfo->lock);
> + return -ENOENT;
> + }
> +
> + if (!atomic_read(&p->tcfa_bindcnt)) {
> + if (refcount_dec_and_test(&p->tcfa_refcnt)) {
> + struct module *owner = p->ops->owner;
> +
> + WARN_ON(p != idr_remove(&idrinfo->action_idr,
> + p->tcfa_index));
> + spin_unlock_bh(&idrinfo->lock);
> +
> + tcf_action_cleanup(p);
> + module_put(owner);
> + return 0;
> + }
> + ret = 0;
> + } else {
> + ret = -EPERM;
> + }
> +
> + spin_unlock_bh(&idrinfo->lock);
> + return ret;
> +}
> +EXPORT_SYMBOL(tcf_idr_find_delete);
...
^ permalink raw reply
* Re: [PATCH 13/14] net: sched: use unique idr insert function in unlocked actions
From: Marcelo Ricardo Leitner @ 2018-05-19 22:20 UTC (permalink / raw)
To: Vlad Buslov
Cc: netdev, davem, jhs, xiyou.wangcong, jiri, pablo, kadlec, fw, ast,
daniel, edumazet, keescook, linux-kernel, netfilter-devel,
coreteam, kliteyn
In-Reply-To: <1526308035-12484-14-git-send-email-vladbu@mellanox.com>
On Mon, May 14, 2018 at 05:27:14PM +0300, Vlad Buslov wrote:
> Substitute calls to action insert function with calls to action insert
> unique function that warns if insertion overwrites index in idr.
I know this patch may be gone on V2, but a general comment, please use
the function names themselves instead of a textualized version. I.e.,
s/action insert unique/tcf_idr_insert_unique/
^ permalink raw reply
* Re: [PATCH 12/14] net: sched: retry action check-insert on concurrent modification
From: Marcelo Ricardo Leitner @ 2018-05-19 22:35 UTC (permalink / raw)
To: Jiri Pirko
Cc: Vlad Buslov, netdev, davem, jhs, xiyou.wangcong, pablo, kadlec,
fw, ast, daniel, edumazet, keescook, linux-kernel,
netfilter-devel, coreteam, kliteyn
In-Reply-To: <20180516132135.GN1972@nanopsycho>
On Wed, May 16, 2018 at 03:21:35PM +0200, Jiri Pirko wrote:
...
> int tcf_idr_check_alloc(struct tc_action_net *tn, u32 *index,
> struct tc_action **a, int bind)
Considering we don't have any other variant of it, maybe just
"tcf_idr_alloc()" instead?
^ permalink raw reply
* Re: [PATCH 14/14] net: sched: implement delete for all actions
From: Marcelo Ricardo Leitner @ 2018-05-19 22:45 UTC (permalink / raw)
To: Vlad Buslov
Cc: Jiri Pirko, netdev, davem, jhs, xiyou.wangcong, pablo, kadlec, fw,
ast, daniel, edumazet, keescook, linux-kernel, netfilter-devel,
coreteam, kliteyn
In-Reply-To: <vbf7eo32a7l.fsf@reg-r-vrt-018-180.mtr.labs.mlnx>
On Wed, May 16, 2018 at 12:58:38PM +0300, Vlad Buslov wrote:
>
> On Wed 16 May 2018 at 09:48, Jiri Pirko <jiri@resnulli.us> wrote:
> > Mon, May 14, 2018 at 04:27:15PM CEST, vladbu@mellanox.com wrote:
> >>Implement delete function that is required to delete actions without
> >>holding rtnl lock. Use action API function that atomically deletes action
> >>only if it is still in action idr. This implementation prevents concurrent
> >>threads from deleting same action twice.
> >>
> >>Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
> >>---
> >> net/sched/act_bpf.c | 8 ++++++++
> >> net/sched/act_connmark.c | 8 ++++++++
> >> net/sched/act_csum.c | 8 ++++++++
> >> net/sched/act_gact.c | 8 ++++++++
> >> net/sched/act_ife.c | 8 ++++++++
> >> net/sched/act_ipt.c | 16 ++++++++++++++++
> >> net/sched/act_mirred.c | 8 ++++++++
> >> net/sched/act_nat.c | 8 ++++++++
> >> net/sched/act_pedit.c | 8 ++++++++
> >> net/sched/act_police.c | 8 ++++++++
> >> net/sched/act_sample.c | 8 ++++++++
> >> net/sched/act_simple.c | 8 ++++++++
> >> net/sched/act_skbedit.c | 8 ++++++++
> >> net/sched/act_skbmod.c | 8 ++++++++
> >> net/sched/act_tunnel_key.c | 8 ++++++++
> >> net/sched/act_vlan.c | 8 ++++++++
> >> 16 files changed, 136 insertions(+)
> >>
> >>diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
> >>index 0bf4ecf..36f7f66 100644
> >>--- a/net/sched/act_bpf.c
> >>+++ b/net/sched/act_bpf.c
> >>@@ -394,6 +394,13 @@ static int tcf_bpf_search(struct net *net, struct tc_action **a, u32 index,
> >> return tcf_idr_search(tn, a, index);
> >> }
> >>
> >>+static int tcf_bpf_delete(struct net *net, u32 index)
> >>+{
> >>+ struct tc_action_net *tn = net_generic(net, bpf_net_id);
> >>+
> >>+ return tcf_idr_find_delete(tn, index);
> >>+}
> >>+
> >> static struct tc_action_ops act_bpf_ops __read_mostly = {
> >> .kind = "bpf",
> >> .type = TCA_ACT_BPF,
> >>@@ -404,6 +411,7 @@ static struct tc_action_ops act_bpf_ops __read_mostly = {
> >> .init = tcf_bpf_init,
> >> .walk = tcf_bpf_walker,
> >> .lookup = tcf_bpf_search,
> >>+ .delete = tcf_bpf_delete,
> >
> > I wonder, right before this patch, how the idr index got removed?
> > delete op is NULL and I didn't find anyone else to do it.
AFAICT this also means it is leaking idr's till this patch is applied.
Maybe I missed something.
> >
> > Also, after this patch, does it make sense to have following check in
> > tcf_action_del_1()?
> >
> > if (ops->delete)
> > err = ops->delete(net, index);
> >
> > Looks like ops->delete is non-null for all.
> >
> > Seems to me that you need to introduce this patch filling up the delete
> > op in all acts and only after that introduce a code that actually calls
> > it.
>
> Already moved this for V2 patchset to:
> - Add delete callback to ops and implement it for all actions in single
> patch.
> - Move this patch before delete first use.
>
> Will now remove the conditional as well.
>
> >
> > [...]
>
^ permalink raw reply
* Re: [PATCH net-next 1/3] net: dsa: mv88e6xxx: Remove OF check for IRQ domain
From: Florian Fainelli @ 2018-05-19 22:47 UTC (permalink / raw)
To: Andrew Lunn, David Miller; +Cc: Vivien Didelot, netdev
In-Reply-To: <1526761895-15839-2-git-send-email-andrew@lunn.ch>
On 05/19/2018 01:31 PM, Andrew Lunn wrote:
> An IRQ domain will work without an OF node. It is not possible to
> reference interrupts via a phandle, but C code can still use
> irq_find_mapping() to get an interrupt from the domain.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian
^ permalink raw reply
* Re: [PATCH net-next 2/3] net: dsa: mv88e6xxx: Add minimal platform_data support
From: Florian Fainelli @ 2018-05-19 22:52 UTC (permalink / raw)
To: Andrew Lunn, David Miller; +Cc: Vivien Didelot, netdev
In-Reply-To: <1526761895-15839-3-git-send-email-andrew@lunn.ch>
On 05/19/2018 01:31 PM, Andrew Lunn wrote:
> Not all the world uses device tree. Some parts of the world still use
> platform devices and platform data. Add basic support for probing a
> Marvell switch via platform data.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
There is a bit of overlap with your net_device structure and what
dsa_chip_data includes, but this is fine for now.
--
Florian
^ permalink raw reply
* Re: [PATCH net-next 3/3] net: dsa: mv88e6xxx: Add support for EEPROM via platform data
From: Florian Fainelli @ 2018-05-19 22:52 UTC (permalink / raw)
To: Andrew Lunn, David Miller; +Cc: Vivien Didelot, netdev
In-Reply-To: <1526761895-15839-4-git-send-email-andrew@lunn.ch>
On 05/19/2018 01:31 PM, Andrew Lunn wrote:
> Add the size of the EEPROM to the platform data, so it can also be
> instantiated by a platform device.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian
^ permalink raw reply
* [PATCH net-next] net: dsa: b53: Extend platform data to include DSA ports
From: Florian Fainelli @ 2018-05-19 22:55 UTC (permalink / raw)
To: netdev; +Cc: andrew, vivien.didelot, Florian Fainelli, open list
Provide a means for !OF platforms to supply their DSA platform data
configuration using the dsa_platform_data structure.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
include/linux/platform_data/b53.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/platform_data/b53.h b/include/linux/platform_data/b53.h
index 69d279c0da96..8eaef2f2b691 100644
--- a/include/linux/platform_data/b53.h
+++ b/include/linux/platform_data/b53.h
@@ -20,8 +20,12 @@
#define __B53_H
#include <linux/kernel.h>
+#include <net/dsa.h>
struct b53_platform_data {
+ /* Must be first such that dsa_register_switch() can access it */
+ struct dsa_chip_data cd;
+
u32 chip_id;
u16 enabled_ports;
--
2.14.1
^ permalink raw reply related
* RE: [PATCH RFC net-next 1/1] tcp: close socket without reset on incoming data
From: Banerjee, Debabrata @ 2018-05-19 22:57 UTC (permalink / raw)
To: 'David Miller'
Cc: netdev@vger.kernel.org, kuznet@ms2.inr.ac.ru,
yoshfuji@linux-ipv6.org
In-Reply-To: <20180519.170050.615996932572513152.davem@davemloft.net>
> From: David Miller [mailto:davem@davemloft.net]
> From: Debabrata Banerjee <dbanerje@akamai.com>
>
> > When TCP_CLOSE_NORST is set before a close(), offload sinking of
> > unwanted data to the kernel with low resource usage, with a timeout of
> > TCP_LINGER2. The socket will transition to FIN_WAIT1 and then
> > FIN_WAIT2 where it will ack data until either the timeout is hit, or a
> > RST or FIN is received.
> >
>
> This is a very serious protocol violation.
Actually I don't believe it violates the protocol. rfc1122 4.2.2.13 reads:
"A host MAY implement a "half-duplex" TCP close sequence, so
that an application that has called CLOSE cannot continue to
read data from the connection. If such a host issues a
CLOSE call while received data is still pending in TCP, or
if new data is received after CLOSE is called, its TCP
SHOULD send a RST to show that data was lost."
Keyword SHOULD according to rfc2119 means recommended but optional, versus MUST.
> You're telling the remote end that you received the data even though the
> socket was closed and nothing actually "sunk" the bytes.
It does the same thing the application would do, but with much less overhead. The application called close() because it no longer cares about new data, but it still expected send() prior to close() to actually send.
> This doesn't even go into the issues of sending cumulative ACKs in response
> to data which is arbitrarily out-of-order.
Not sure what issues we'd run into here, out of order and duplicate acks can happen normally.
> The whole problem is that the post data is sent before the client looks to see
> if the server is willing to accept the post data or not.
>
> A: I'd like to send you 200MB of crap
> [ 200MB of craaaa...
> B: Sorry I won't be accepting that, please don't send it.
>
> CLOSE, send reset since some of crap is queued up and
> was never read
>
> A: aaaaapp... received RESET
> A: Why didn't B accept my 200MB of crap?
That's correct. But it's not just limited to POST. Could be any data transfer over TCP sockets. Of course in the 200MB POST case, that's lots of resources and copying to userspace.
> Sorry, you'll need to deal with this issue in another way.
Well if the intersection with the definition of the close() spooks you something similar could be implemented as a setsockopt(TCP_SINK_DATA) around shutdown(), to instruct the socket to immediately dump data, but with higher resource usage. However as above, I don't currently believe this patch violates the protocol.
^ permalink raw reply
* Re: [PATCH net-next] net: dsa: b53: Extend platform data to include DSA ports
From: Andrew Lunn @ 2018-05-20 1:42 UTC (permalink / raw)
To: Florian Fainelli; +Cc: netdev, vivien.didelot, open list
In-Reply-To: <20180519225510.23820-1-f.fainelli@gmail.com>
On Sat, May 19, 2018 at 03:55:10PM -0700, Florian Fainelli wrote:
> Provide a means for !OF platforms to supply their DSA platform data
> configuration using the dsa_platform_data structure.
Hi Florian
It seems a bit odd adding the header file, but no code. Yes, this will
help simplify the merge dependencies for the ZII boards next cycle,
but can we have the actual code as well?
Thanks
Andrew
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
> include/linux/platform_data/b53.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/include/linux/platform_data/b53.h b/include/linux/platform_data/b53.h
> index 69d279c0da96..8eaef2f2b691 100644
> --- a/include/linux/platform_data/b53.h
> +++ b/include/linux/platform_data/b53.h
> @@ -20,8 +20,12 @@
> #define __B53_H
>
> #include <linux/kernel.h>
> +#include <net/dsa.h>
>
> struct b53_platform_data {
> + /* Must be first such that dsa_register_switch() can access it */
> + struct dsa_chip_data cd;
> +
> u32 chip_id;
> u16 enabled_ports;
>
> --
> 2.14.1
>
^ permalink raw reply
* Re: INFO: rcu detected stall in is_bpf_text_address
From: Marcelo Ricardo Leitner @ 2018-05-20 1:45 UTC (permalink / raw)
To: Eric Dumazet
Cc: syzbot, ast, daniel, linux-kernel, netdev, syzkaller-bugs,
Xin Long
In-Reply-To: <4b65142a-cf3b-05d7-d66b-018ff8da7ccc@gmail.com>
On Sat, May 19, 2018 at 08:57:19AM -0700, Eric Dumazet wrote:
> SCTP experts, please take a look.
Ugh, same sctp footprint as in the other reports.
>
> > _sctp_make_chunk+0x58/0x280 net/sctp/sm_make_chunk.c:1417
> > sctp_make_control net/sctp/sm_make_chunk.c:1464 [inline]
> > sctp_make_heartbeat+0x8f/0x430 net/sctp/sm_make_chunk.c:1177
> > sctp_sf_heartbeat.isra.23+0x26/0x180 net/sctp/sm_statefuns.c:1005
> > sctp_sf_sendbeat_8_3+0x38e/0x550 net/sctp/sm_statefuns.c:1049
> > sctp_do_sm+0x1ab/0x7160 net/sctp/sm_sideeffect.c:1188
> > sctp_generate_heartbeat_event+0x218/0x450 net/sctp/sm_sideeffect.c:406
> > call_timer_fn+0x230/0x940 kernel/time/timer.c:1326
> > expire_timers kernel/time/timer.c:1363 [inline]
> > __run_timers+0x79e/0xc50 kernel/time/timer.c:1666
> > run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692
^ permalink raw reply
* Re: INFO: task hung in tls_push_record
From: syzbot @ 2018-05-20 2:03 UTC (permalink / raw)
To: aviadye, borisp, davejwatson, davem, linux-kernel, netdev,
syzkaller-bugs
In-Reply-To: <00000000000042f064056b8d004d@google.com>
syzbot has found a reproducer for the following crash on:
HEAD commit: eb38401c779d net: stmmac: Populate missing callbacks in HW..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=16d0820f800000
kernel config: https://syzkaller.appspot.com/x/.config?x=b632d8e2c2ab2c1
dashboard link: https://syzkaller.appspot.com/bug?extid=4006516aae0b06e7050f
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=10f6927b800000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15b7a20f800000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+4006516aae0b06e7050f@syzkaller.appspotmail.com
INFO: task syz-executor793:4489 blocked for more than 120 seconds.
Not tainted 4.17.0-rc4+ #52
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor793 D23464 4489 4486 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2848 [inline]
__schedule+0x801/0x1e30 kernel/sched/core.c:3490
schedule+0xef/0x430 kernel/sched/core.c:3549
schedule_timeout+0x1b5/0x240 kernel/time/timer.c:1777
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common kernel/sched/completion.c:115 [inline]
wait_for_completion+0x3e7/0x870 kernel/sched/completion.c:136
crypto_wait_req include/linux/crypto.h:512 [inline]
tls_do_encryption net/tls/tls_sw.c:217 [inline]
tls_push_record+0xedc/0x13e0 net/tls/tls_sw.c:248
tls_sw_sendmsg+0x8d7/0x12b0 net/tls/tls_sw.c:440
inet_sendmsg+0x19f/0x690 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:629 [inline]
sock_sendmsg+0xd5/0x120 net/socket.c:639
__sys_sendto+0x3d7/0x670 net/socket.c:1789
__do_sys_sendto net/socket.c:1801 [inline]
__se_sys_sendto net/socket.c:1797 [inline]
__x64_sys_sendto+0xe1/0x1a0 net/socket.c:1797
do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4457d9
RSP: 002b:00007fa388d06da8 EFLAGS: 00000216 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 00000000004457d9
RDX: 00000000fffffdef RSI: 00000000200005c0 RDI: 0000000000000022
RBP: 00000000006dac20 R08: 0000000020000000 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000000
R13: 00007ffd5148ecaf R14: 00007fa388d079c0 R15: 0000000000000001
Showing all locks held in the system:
2 locks held by khungtaskd/892:
#0: 000000009dfaae0c (rcu_read_lock){....}, at:
check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline]
#0: 000000009dfaae0c (rcu_read_lock){....}, at: watchdog+0x1ff/0xf60
kernel/hung_task.c:249
#1: 0000000058f79a8d (tasklist_lock){.+.+}, at:
debug_show_all_locks+0xde/0x34a kernel/locking/lockdep.c:4470
1 lock held by rsyslogd/4370:
#0: 0000000059c3c7ae (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1a9/0x1e0
fs/file.c:766
2 locks held by getty/4460:
#0: 00000000e25a52c3 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 000000002caea50f (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
2 locks held by getty/4461:
#0: 00000000d38c9806 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 00000000eaffe99d (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
2 locks held by getty/4462:
#0: 00000000cec6abe7 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 0000000000afd91c (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
2 locks held by getty/4463:
#0: 000000003456fca5 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 0000000038a65d91 (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
2 locks held by getty/4464:
#0: 0000000001e783b1 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 000000003ecd2e34 (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
2 locks held by getty/4465:
#0: 000000007ef8b451 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 000000006996c3ed (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
2 locks held by getty/4466:
#0: 00000000d15d9a92 (&tty->ldisc_sem){++++}, at:
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: 00000000ee44bcf4 (&ldata->atomic_read_lock){+.+.}, at:
n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131
1 lock held by syz-executor793/4489:
#0: 0000000008c84b0d (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 0000000008c84b0d (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4494:
#0: 00000000f2de7555 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000f2de7555 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4499:
#0: 0000000058a54751 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 0000000058a54751 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4504:
#0: 0000000045694cb9 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 0000000045694cb9 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4509:
#0: 00000000b663e61f (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000b663e61f (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4514:
#0: 00000000603baf06 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000603baf06 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4519:
#0: 00000000344afb7e (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000344afb7e (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4524:
#0: 000000004aa3e1ce (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 000000004aa3e1ce (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4529:
#0: 00000000b6c4b2ea (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000b6c4b2ea (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4534:
#0: 000000005bae881e (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 000000005bae881e (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4539:
#0: 000000004b04f235 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 000000004b04f235 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4544:
#0: 00000000b5888be7 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000b5888be7 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4549:
#0: 00000000e902c819 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000e902c819 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4554:
#0: 000000009cd1d95e (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 000000009cd1d95e (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4559:
#0: 000000001f3edf17 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 000000001f3edf17 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
1 lock held by syz-executor793/4563:
#0: 00000000802085f8 (sk_lock-AF_INET6){+.+.}, at: lock_sock
include/net/sock.h:1474 [inline]
#0: 00000000802085f8 (sk_lock-AF_INET6){+.+.}, at:
tls_sw_sendmsg+0x1b9/0x12b0 net/tls/tls_sw.c:384
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 892 Comm: khungtaskd Not tainted 4.17.0-rc4+ #52
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1b9/0x294 lib/dump_stack.c:113
nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103
nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline]
check_hung_task kernel/hung_task.c:132 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:190 [inline]
watchdog+0xc10/0xf60 kernel/hung_task.c:249
kthread+0x345/0x410 kernel/kthread.c:238
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4486 Comm: sshd Not tainted 4.17.0-rc4+ #52
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__debug_object_init+0x25/0x12c0 lib/debugobjects.c:371
RSP: 0018:ffff8801b30f73d0 EFLAGS: 00000a02
RAX: 1ffff1003661ee3d RBX: ffff8801b30f7440 RCX: ffffffff877175fb
RDX: 0000000000000001 RSI: ffffffff88d9a5e0 RDI: ffff8801b30f7440
RBP: ffff8801b30f73f0 R08: ffff8801b0a10740 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801b30f73c8
R13: dffffc0000000000 R14: ffff8801b30f74c0 R15: 0000000000000001
FS: 00007f15863b87c0(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38c25af9ce CR3: 00000001d0b17000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_object_init_on_stack+0x19/0x20 lib/debugobjects.c:444
hrtimer_init_on_stack kernel/time/hrtimer.c:435 [inline]
schedule_hrtimeout_range_clock+0xcc/0x470 kernel/time/hrtimer.c:1936
schedule_hrtimeout_range+0x2a/0x40 kernel/time/hrtimer.c:1989
poll_schedule_timeout+0x11a/0x200 fs/select.c:243
do_select+0x1606/0x1ae0 fs/select.c:581
core_sys_select+0x768/0xb60 fs/select.c:655
kern_select+0x1b7/0x250 fs/select.c:696
__do_sys_select fs/select.c:705 [inline]
__se_sys_select fs/select.c:702 [inline]
__x64_sys_select+0xbe/0x150 fs/select.c:702
do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f1584758dd3
RSP: 002b:00007ffe596ca1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017
RAX: ffffffffffffffda RBX: 00007ffe596ca280 RCX: 00007f1584758dd3
RDX: 000055a15612aab0 RSI: 000055a15612aad0 RDI: 000000000000000c
RBP: 000055a1559bf8dc R08: 00007ffe596ca220 R09: 0101010101010101
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe596ca288
R13: 0000000000000000 R14: 00007ffe596ca278 R15: 00007ffe596ca27c
Code: 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 48 8d 85 f8 fd ff ff 41 55
48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 41 54 4c 8d 65 d8 <53> 48 89 fb
48 81 ec 30 02 00 00 48 89 85 d8 fd ff ff 4c 01 e8
^ permalink raw reply
* Re: [PATCH 1/4] arcnet: com20020: Add com20020 io mapped version
From: kbuild test robot @ 2018-05-20 2:13 UTC (permalink / raw)
To: Andrea Greco
Cc: kbuild-all, tobin, andrea.greco.gapmilano, Andrea Greco,
Michael Grzeschik, linux-kernel, netdev
In-Reply-To: <20180517130529.2684-1-andrea.greco.gapmilano@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 32183 bytes --]
Hi Andrea,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on net-next/master]
[also build test ERROR on v4.17-rc5 next-20180517]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-com20020-Add-com20020-io-mapped-version/20180520-083936
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
In file included from drivers/net/arcnet/com90xx.c:40:0:
drivers/net/arcnet/com90xx.c: In function 'com90xx_probe':
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:161:7: note: in expansion of macro 'arcnet_inb'
if (arcnet_inb(ioaddr, COM9026_REG_R_STATUS) == 0xFF) {
^~~~~~~~~~
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:171:3: note: in expansion of macro 'arcnet_inb'
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
^~~~~~~~~~
>> drivers/net/arcnet/com90xx.c:233:7: error: implicit declaration of function 'arcnet_readb'; did you mean 'arcnet_outsb'? [-Werror=implicit-function-declaration]
if (arcnet_readb(base, COM9026_REG_R_STATUS) != TESTvalue) {
^~~~~~~~~~~~
arcnet_outsb
>> drivers/net/arcnet/com90xx.c:247:3: error: implicit declaration of function 'arcnet_writeb'; did you mean 'arcnet_outsb'? [-Werror=implicit-function-declaration]
arcnet_writeb(0x42, base, COM9026_REG_W_INTMASK);
^~~~~~~~~~~~~
arcnet_outsb
In file included from drivers/net/arcnet/com90xx.c:40:0:
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:312:12: note: in expansion of macro 'arcnet_inb'
status = arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
^~~~~~~~~~
drivers/net/arcnet/arcdevice.h:379:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void __iomem *)addr + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:324:3: note: in expansion of macro 'arcnet_outb'
arcnet_outb(CFLAGScmd | RESETclear | CONFIGclear,
^~~~~~~~~~~
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:326:12: note: in expansion of macro 'arcnet_inb'
status = arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
^~~~~~~~~~
drivers/net/arcnet/arcdevice.h:379:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void __iomem *)addr + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:346:4: note: in expansion of macro 'arcnet_outb'
arcnet_outb(NORXflag, ioaddr, COM9026_REG_W_INTMASK);
^~~~~~~~~~~
drivers/net/arcnet/arcdevice.h:379:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void __iomem *)addr + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:348:4: note: in expansion of macro 'arcnet_outb'
arcnet_outb(0, ioaddr, COM9026_REG_W_INTMASK);
^~~~~~~~~~~
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:383:3: note: in expansion of macro 'arcnet_inb'
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
^~~~~~~~~~
drivers/net/arcnet/com90xx.c: In function 'com90xx_command':
drivers/net/arcnet/arcdevice.h:379:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void __iomem *)addr + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:565:2: note: in expansion of macro 'arcnet_outb'
arcnet_outb(cmd, ioaddr, COM9026_REG_W_COMMAND);
^~~~~~~~~~~
drivers/net/arcnet/com90xx.c: In function 'com90xx_status':
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:572:9: note: in expansion of macro 'arcnet_inb'
return arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
^~~~~~~~~~
drivers/net/arcnet/com90xx.c: In function 'com90xx_setmask':
drivers/net/arcnet/arcdevice.h:379:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void __iomem *)addr + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:579:2: note: in expansion of macro 'arcnet_outb'
arcnet_outb(mask, ioaddr, COM9026_REG_W_INTMASK);
^~~~~~~~~~~
drivers/net/arcnet/com90xx.c: In function 'com90xx_reset':
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/arcdevice.h:88:28: note: in expansion of macro 'arcnet_inb'
netdev_warn(dev, fmt, ##__VA_ARGS__); \
^~~~~~~~~~~
drivers/net/arcnet/com90xx.c:594:2: note: in expansion of macro 'arc_printk'
arc_printk(D_INIT, dev, "Resetting (status=%02Xh)\n",
^~~~~~~~~~
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/arcdevice.h:90:28: note: in expansion of macro 'arcnet_inb'
netdev_info(dev, fmt, ##__VA_ARGS__); \
^~~~~~~~~~~
drivers/net/arcnet/com90xx.c:594:2: note: in expansion of macro 'arc_printk'
arc_printk(D_INIT, dev, "Resetting (status=%02Xh)\n",
^~~~~~~~~~
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
include/linux/dynamic_debug.h:144:12: note: in expansion of macro 'arcnet_inb'
##__VA_ARGS__); \
^~~~~~~~~~~
include/linux/netdevice.h:4419:2: note: in expansion of macro 'dynamic_netdev_dbg'
dynamic_netdev_dbg(__dev, format, ##args); \
^~~~~~~~~~~~~~~~~~
drivers/net/arcnet/arcdevice.h:92:4: note: in expansion of macro 'netdev_dbg'
netdev_dbg(dev, fmt, ##__VA_ARGS__); \
^~~~~~~~~~
drivers/net/arcnet/com90xx.c:594:2: note: in expansion of macro 'arc_printk'
arc_printk(D_INIT, dev, "Resetting (status=%02Xh)\n",
^~~~~~~~~~
drivers/net/arcnet/arcdevice.h:376:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
ioread8((void __iomem *)(addr) + BUS_ALIGN * offset)
^
drivers/net/arcnet/com90xx.c:599:3: note: in expansion of macro 'arcnet_inb'
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
--
drivers/net/arcnet/arc-rimi.c: In function 'check_mirror':
>> drivers/net/arcnet/arc-rimi.c:109:7: error: implicit declaration of function 'arcnet_readb'; did you mean 'arcnet_outsb'? [-Werror=implicit-function-declaration]
if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue)
^~~~~~~~~~~~
arcnet_outsb
drivers/net/arcnet/arc-rimi.c: In function 'arcrimi_found':
>> drivers/net/arcnet/arc-rimi.c:147:2: error: implicit declaration of function 'arcnet_writeb'; did you mean 'arcnet_outsb'? [-Werror=implicit-function-declaration]
arcnet_writeb(TESTvalue, p, COM9026_REG_W_INTMASK);
^~~~~~~~~~~~~
arcnet_outsb
cc1: some warnings being treated as errors
vim +233 drivers/net/arcnet/com90xx.c
^1da177e4 Linus Torvalds 2005-04-16 95
^1da177e4 Linus Torvalds 2005-04-16 96 static void __init com90xx_probe(void)
^1da177e4 Linus Torvalds 2005-04-16 97 {
^1da177e4 Linus Torvalds 2005-04-16 98 int count, status, ioaddr, numprint, airq, openparen = 0;
^1da177e4 Linus Torvalds 2005-04-16 99 unsigned long airqmask;
7f5e760c1 Joe Perches 2015-05-05 100 int ports[(0x3f0 - 0x200) / 16 + 1] = { 0 };
d0f6ecad3 Al Viro 2005-12-02 101 unsigned long *shmems;
d0f6ecad3 Al Viro 2005-12-02 102 void __iomem **iomem;
^1da177e4 Linus Torvalds 2005-04-16 103 int numports, numshmems, *port;
^1da177e4 Linus Torvalds 2005-04-16 104 u_long *p;
d0f6ecad3 Al Viro 2005-12-02 105 int index;
^1da177e4 Linus Torvalds 2005-04-16 106
^1da177e4 Linus Torvalds 2005-04-16 107 if (!io && !irq && !shmem && !*device && com90xx_skip_probe)
^1da177e4 Linus Torvalds 2005-04-16 108 return;
^1da177e4 Linus Torvalds 2005-04-16 109
15901dc93 Andrew Morton 2006-04-01 110 shmems = kzalloc(((0x100000 - 0xa0000) / 0x800) * sizeof(unsigned long),
d0f6ecad3 Al Viro 2005-12-02 111 GFP_KERNEL);
d0f6ecad3 Al Viro 2005-12-02 112 if (!shmems)
d0f6ecad3 Al Viro 2005-12-02 113 return;
15901dc93 Andrew Morton 2006-04-01 114 iomem = kzalloc(((0x100000 - 0xa0000) / 0x800) * sizeof(void __iomem *),
d0f6ecad3 Al Viro 2005-12-02 115 GFP_KERNEL);
d0f6ecad3 Al Viro 2005-12-02 116 if (!iomem) {
d0f6ecad3 Al Viro 2005-12-02 117 kfree(shmems);
d0f6ecad3 Al Viro 2005-12-02 118 return;
d0f6ecad3 Al Viro 2005-12-02 119 }
d0f6ecad3 Al Viro 2005-12-02 120
72aeea484 Joe Perches 2015-05-05 121 if (BUGLVL(D_NORMAL))
05a24b234 Joe Perches 2015-05-05 122 pr_info("%s\n", "COM90xx chipset support");
^1da177e4 Linus Torvalds 2005-04-16 123
^1da177e4 Linus Torvalds 2005-04-16 124 /* set up the arrays where we'll store the possible probe addresses */
^1da177e4 Linus Torvalds 2005-04-16 125 numports = numshmems = 0;
^1da177e4 Linus Torvalds 2005-04-16 126 if (io)
^1da177e4 Linus Torvalds 2005-04-16 127 ports[numports++] = io;
^1da177e4 Linus Torvalds 2005-04-16 128 else
^1da177e4 Linus Torvalds 2005-04-16 129 for (count = 0x200; count <= 0x3f0; count += 16)
^1da177e4 Linus Torvalds 2005-04-16 130 ports[numports++] = count;
^1da177e4 Linus Torvalds 2005-04-16 131 if (shmem)
^1da177e4 Linus Torvalds 2005-04-16 132 shmems[numshmems++] = shmem;
^1da177e4 Linus Torvalds 2005-04-16 133 else
^1da177e4 Linus Torvalds 2005-04-16 134 for (count = 0xA0000; count <= 0xFF800; count += 2048)
^1da177e4 Linus Torvalds 2005-04-16 135 shmems[numshmems++] = count;
^1da177e4 Linus Torvalds 2005-04-16 136
^1da177e4 Linus Torvalds 2005-04-16 137 /* Stage 1: abandon any reserved ports, or ones with status==0xFF
^1da177e4 Linus Torvalds 2005-04-16 138 * (empty), and reset any others by reading the reset port.
^1da177e4 Linus Torvalds 2005-04-16 139 */
^1da177e4 Linus Torvalds 2005-04-16 140 numprint = -1;
^1da177e4 Linus Torvalds 2005-04-16 141 for (port = &ports[0]; port - ports < numports; port++) {
^1da177e4 Linus Torvalds 2005-04-16 142 numprint++;
^1da177e4 Linus Torvalds 2005-04-16 143 numprint %= 8;
^1da177e4 Linus Torvalds 2005-04-16 144 if (!numprint) {
a34c0932c Joe Perches 2015-05-05 145 arc_cont(D_INIT, "\n");
a34c0932c Joe Perches 2015-05-05 146 arc_cont(D_INIT, "S1: ");
^1da177e4 Linus Torvalds 2005-04-16 147 }
a34c0932c Joe Perches 2015-05-05 148 arc_cont(D_INIT, "%Xh ", *port);
^1da177e4 Linus Torvalds 2005-04-16 149
^1da177e4 Linus Torvalds 2005-04-16 150 ioaddr = *port;
^1da177e4 Linus Torvalds 2005-04-16 151
d6d7d3ed5 Joe Perches 2015-05-05 152 if (!request_region(*port, ARCNET_TOTAL_SIZE,
d6d7d3ed5 Joe Perches 2015-05-05 153 "arcnet (90xx)")) {
a34c0932c Joe Perches 2015-05-05 154 arc_cont(D_INIT_REASONS, "(request_region)\n");
a34c0932c Joe Perches 2015-05-05 155 arc_cont(D_INIT_REASONS, "S1: ");
72aeea484 Joe Perches 2015-05-05 156 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 157 numprint = 0;
^1da177e4 Linus Torvalds 2005-04-16 158 *port-- = ports[--numports];
^1da177e4 Linus Torvalds 2005-04-16 159 continue;
^1da177e4 Linus Torvalds 2005-04-16 160 }
09dfbcd5d Joe Perches 2015-05-05 @161 if (arcnet_inb(ioaddr, COM9026_REG_R_STATUS) == 0xFF) {
a34c0932c Joe Perches 2015-05-05 162 arc_cont(D_INIT_REASONS, "(empty)\n");
a34c0932c Joe Perches 2015-05-05 163 arc_cont(D_INIT_REASONS, "S1: ");
72aeea484 Joe Perches 2015-05-05 164 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 165 numprint = 0;
^1da177e4 Linus Torvalds 2005-04-16 166 release_region(*port, ARCNET_TOTAL_SIZE);
^1da177e4 Linus Torvalds 2005-04-16 167 *port-- = ports[--numports];
^1da177e4 Linus Torvalds 2005-04-16 168 continue;
^1da177e4 Linus Torvalds 2005-04-16 169 }
09dfbcd5d Joe Perches 2015-05-05 170 /* begin resetting card */
09dfbcd5d Joe Perches 2015-05-05 @171 arcnet_inb(ioaddr, COM9026_REG_R_RESET);
^1da177e4 Linus Torvalds 2005-04-16 172
a34c0932c Joe Perches 2015-05-05 173 arc_cont(D_INIT_REASONS, "\n");
a34c0932c Joe Perches 2015-05-05 174 arc_cont(D_INIT_REASONS, "S1: ");
72aeea484 Joe Perches 2015-05-05 175 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 176 numprint = 0;
^1da177e4 Linus Torvalds 2005-04-16 177 }
a34c0932c Joe Perches 2015-05-05 178 arc_cont(D_INIT, "\n");
^1da177e4 Linus Torvalds 2005-04-16 179
^1da177e4 Linus Torvalds 2005-04-16 180 if (!numports) {
a34c0932c Joe Perches 2015-05-05 181 arc_cont(D_NORMAL, "S1: No ARCnet cards found.\n");
d0f6ecad3 Al Viro 2005-12-02 182 kfree(shmems);
d0f6ecad3 Al Viro 2005-12-02 183 kfree(iomem);
^1da177e4 Linus Torvalds 2005-04-16 184 return;
^1da177e4 Linus Torvalds 2005-04-16 185 }
^1da177e4 Linus Torvalds 2005-04-16 186 /* Stage 2: we have now reset any possible ARCnet cards, so we can't
^1da177e4 Linus Torvalds 2005-04-16 187 * do anything until they finish. If D_INIT, print the list of
^1da177e4 Linus Torvalds 2005-04-16 188 * cards that are left.
^1da177e4 Linus Torvalds 2005-04-16 189 */
^1da177e4 Linus Torvalds 2005-04-16 190 numprint = -1;
^1da177e4 Linus Torvalds 2005-04-16 191 for (port = &ports[0]; port < ports + numports; port++) {
^1da177e4 Linus Torvalds 2005-04-16 192 numprint++;
^1da177e4 Linus Torvalds 2005-04-16 193 numprint %= 8;
^1da177e4 Linus Torvalds 2005-04-16 194 if (!numprint) {
a34c0932c Joe Perches 2015-05-05 195 arc_cont(D_INIT, "\n");
a34c0932c Joe Perches 2015-05-05 196 arc_cont(D_INIT, "S2: ");
^1da177e4 Linus Torvalds 2005-04-16 197 }
a34c0932c Joe Perches 2015-05-05 198 arc_cont(D_INIT, "%Xh ", *port);
^1da177e4 Linus Torvalds 2005-04-16 199 }
a34c0932c Joe Perches 2015-05-05 200 arc_cont(D_INIT, "\n");
^1da177e4 Linus Torvalds 2005-04-16 201 mdelay(RESETtime);
^1da177e4 Linus Torvalds 2005-04-16 202
^1da177e4 Linus Torvalds 2005-04-16 203 /* Stage 3: abandon any shmem addresses that don't have the signature
^1da177e4 Linus Torvalds 2005-04-16 204 * 0xD1 byte in the right place, or are read-only.
^1da177e4 Linus Torvalds 2005-04-16 205 */
^1da177e4 Linus Torvalds 2005-04-16 206 numprint = -1;
d0f6ecad3 Al Viro 2005-12-02 207 for (index = 0, p = &shmems[0]; index < numshmems; p++, index++) {
d0f6ecad3 Al Viro 2005-12-02 208 void __iomem *base;
^1da177e4 Linus Torvalds 2005-04-16 209
^1da177e4 Linus Torvalds 2005-04-16 210 numprint++;
^1da177e4 Linus Torvalds 2005-04-16 211 numprint %= 8;
^1da177e4 Linus Torvalds 2005-04-16 212 if (!numprint) {
a34c0932c Joe Perches 2015-05-05 213 arc_cont(D_INIT, "\n");
a34c0932c Joe Perches 2015-05-05 214 arc_cont(D_INIT, "S3: ");
^1da177e4 Linus Torvalds 2005-04-16 215 }
a34c0932c Joe Perches 2015-05-05 216 arc_cont(D_INIT, "%lXh ", *p);
^1da177e4 Linus Torvalds 2005-04-16 217
d0f6ecad3 Al Viro 2005-12-02 218 if (!request_mem_region(*p, MIRROR_SIZE, "arcnet (90xx)")) {
a34c0932c Joe Perches 2015-05-05 219 arc_cont(D_INIT_REASONS, "(request_mem_region)\n");
a34c0932c Joe Perches 2015-05-05 220 arc_cont(D_INIT_REASONS, "Stage 3: ");
72aeea484 Joe Perches 2015-05-05 221 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 222 numprint = 0;
d0f6ecad3 Al Viro 2005-12-02 223 goto out;
d0f6ecad3 Al Viro 2005-12-02 224 }
d0f6ecad3 Al Viro 2005-12-02 225 base = ioremap(*p, MIRROR_SIZE);
d0f6ecad3 Al Viro 2005-12-02 226 if (!base) {
a34c0932c Joe Perches 2015-05-05 227 arc_cont(D_INIT_REASONS, "(ioremap)\n");
a34c0932c Joe Perches 2015-05-05 228 arc_cont(D_INIT_REASONS, "Stage 3: ");
72aeea484 Joe Perches 2015-05-05 229 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 230 numprint = 0;
d0f6ecad3 Al Viro 2005-12-02 231 goto out1;
^1da177e4 Linus Torvalds 2005-04-16 232 }
a11a5442d Joe Perches 2015-05-05 @233 if (arcnet_readb(base, COM9026_REG_R_STATUS) != TESTvalue) {
a34c0932c Joe Perches 2015-05-05 234 arc_cont(D_INIT_REASONS, "(%02Xh != %02Xh)\n",
a11a5442d Joe Perches 2015-05-05 235 arcnet_readb(base, COM9026_REG_R_STATUS),
a11a5442d Joe Perches 2015-05-05 236 TESTvalue);
a34c0932c Joe Perches 2015-05-05 237 arc_cont(D_INIT_REASONS, "S3: ");
72aeea484 Joe Perches 2015-05-05 238 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 239 numprint = 0;
d0f6ecad3 Al Viro 2005-12-02 240 goto out2;
^1da177e4 Linus Torvalds 2005-04-16 241 }
^1da177e4 Linus Torvalds 2005-04-16 242 /* By writing 0x42 to the TESTvalue location, we also make
^1da177e4 Linus Torvalds 2005-04-16 243 * sure no "mirror" shmem areas show up - if they occur
^1da177e4 Linus Torvalds 2005-04-16 244 * in another pass through this loop, they will be discarded
^1da177e4 Linus Torvalds 2005-04-16 245 * because *cptr != TESTvalue.
^1da177e4 Linus Torvalds 2005-04-16 246 */
a11a5442d Joe Perches 2015-05-05 @247 arcnet_writeb(0x42, base, COM9026_REG_W_INTMASK);
a11a5442d Joe Perches 2015-05-05 248 if (arcnet_readb(base, COM9026_REG_R_STATUS) != 0x42) {
a34c0932c Joe Perches 2015-05-05 249 arc_cont(D_INIT_REASONS, "(read only)\n");
a34c0932c Joe Perches 2015-05-05 250 arc_cont(D_INIT_REASONS, "S3: ");
d0f6ecad3 Al Viro 2005-12-02 251 goto out2;
^1da177e4 Linus Torvalds 2005-04-16 252 }
a34c0932c Joe Perches 2015-05-05 253 arc_cont(D_INIT_REASONS, "\n");
a34c0932c Joe Perches 2015-05-05 254 arc_cont(D_INIT_REASONS, "S3: ");
72aeea484 Joe Perches 2015-05-05 255 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 256 numprint = 0;
d0f6ecad3 Al Viro 2005-12-02 257 iomem[index] = base;
d0f6ecad3 Al Viro 2005-12-02 258 continue;
d0f6ecad3 Al Viro 2005-12-02 259 out2:
d0f6ecad3 Al Viro 2005-12-02 260 iounmap(base);
d0f6ecad3 Al Viro 2005-12-02 261 out1:
d0f6ecad3 Al Viro 2005-12-02 262 release_mem_region(*p, MIRROR_SIZE);
d0f6ecad3 Al Viro 2005-12-02 263 out:
d0f6ecad3 Al Viro 2005-12-02 264 *p-- = shmems[--numshmems];
d0f6ecad3 Al Viro 2005-12-02 265 index--;
^1da177e4 Linus Torvalds 2005-04-16 266 }
a34c0932c Joe Perches 2015-05-05 267 arc_cont(D_INIT, "\n");
^1da177e4 Linus Torvalds 2005-04-16 268
^1da177e4 Linus Torvalds 2005-04-16 269 if (!numshmems) {
a34c0932c Joe Perches 2015-05-05 270 arc_cont(D_NORMAL, "S3: No ARCnet cards found.\n");
^1da177e4 Linus Torvalds 2005-04-16 271 for (port = &ports[0]; port < ports + numports; port++)
^1da177e4 Linus Torvalds 2005-04-16 272 release_region(*port, ARCNET_TOTAL_SIZE);
d0f6ecad3 Al Viro 2005-12-02 273 kfree(shmems);
d0f6ecad3 Al Viro 2005-12-02 274 kfree(iomem);
^1da177e4 Linus Torvalds 2005-04-16 275 return;
^1da177e4 Linus Torvalds 2005-04-16 276 }
^1da177e4 Linus Torvalds 2005-04-16 277 /* Stage 4: something of a dummy, to report the shmems that are
^1da177e4 Linus Torvalds 2005-04-16 278 * still possible after stage 3.
^1da177e4 Linus Torvalds 2005-04-16 279 */
^1da177e4 Linus Torvalds 2005-04-16 280 numprint = -1;
^1da177e4 Linus Torvalds 2005-04-16 281 for (p = &shmems[0]; p < shmems + numshmems; p++) {
^1da177e4 Linus Torvalds 2005-04-16 282 numprint++;
^1da177e4 Linus Torvalds 2005-04-16 283 numprint %= 8;
^1da177e4 Linus Torvalds 2005-04-16 284 if (!numprint) {
a34c0932c Joe Perches 2015-05-05 285 arc_cont(D_INIT, "\n");
a34c0932c Joe Perches 2015-05-05 286 arc_cont(D_INIT, "S4: ");
^1da177e4 Linus Torvalds 2005-04-16 287 }
a34c0932c Joe Perches 2015-05-05 288 arc_cont(D_INIT, "%lXh ", *p);
^1da177e4 Linus Torvalds 2005-04-16 289 }
a34c0932c Joe Perches 2015-05-05 290 arc_cont(D_INIT, "\n");
^1da177e4 Linus Torvalds 2005-04-16 291
^1da177e4 Linus Torvalds 2005-04-16 292 /* Stage 5: for any ports that have the correct status, can disable
^1da177e4 Linus Torvalds 2005-04-16 293 * the RESET flag, and (if no irq is given) generate an autoirq,
^1da177e4 Linus Torvalds 2005-04-16 294 * register an ARCnet device.
^1da177e4 Linus Torvalds 2005-04-16 295 *
^1da177e4 Linus Torvalds 2005-04-16 296 * Currently, we can only register one device per probe, so quit
^1da177e4 Linus Torvalds 2005-04-16 297 * after the first one is found.
^1da177e4 Linus Torvalds 2005-04-16 298 */
^1da177e4 Linus Torvalds 2005-04-16 299 numprint = -1;
^1da177e4 Linus Torvalds 2005-04-16 300 for (port = &ports[0]; port < ports + numports; port++) {
^1da177e4 Linus Torvalds 2005-04-16 301 int found = 0;
01a1d5ac4 Joe Perches 2015-05-05 302
^1da177e4 Linus Torvalds 2005-04-16 303 numprint++;
^1da177e4 Linus Torvalds 2005-04-16 304 numprint %= 8;
^1da177e4 Linus Torvalds 2005-04-16 305 if (!numprint) {
a34c0932c Joe Perches 2015-05-05 306 arc_cont(D_INIT, "\n");
a34c0932c Joe Perches 2015-05-05 307 arc_cont(D_INIT, "S5: ");
^1da177e4 Linus Torvalds 2005-04-16 308 }
a34c0932c Joe Perches 2015-05-05 309 arc_cont(D_INIT, "%Xh ", *port);
^1da177e4 Linus Torvalds 2005-04-16 310
^1da177e4 Linus Torvalds 2005-04-16 311 ioaddr = *port;
09dfbcd5d Joe Perches 2015-05-05 312 status = arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
^1da177e4 Linus Torvalds 2005-04-16 313
^1da177e4 Linus Torvalds 2005-04-16 314 if ((status & 0x9D)
^1da177e4 Linus Torvalds 2005-04-16 315 != (NORXflag | RECONflag | TXFREEflag | RESETflag)) {
a34c0932c Joe Perches 2015-05-05 316 arc_cont(D_INIT_REASONS, "(status=%Xh)\n", status);
a34c0932c Joe Perches 2015-05-05 317 arc_cont(D_INIT_REASONS, "S5: ");
72aeea484 Joe Perches 2015-05-05 318 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 319 numprint = 0;
^1da177e4 Linus Torvalds 2005-04-16 320 release_region(*port, ARCNET_TOTAL_SIZE);
^1da177e4 Linus Torvalds 2005-04-16 321 *port-- = ports[--numports];
^1da177e4 Linus Torvalds 2005-04-16 322 continue;
^1da177e4 Linus Torvalds 2005-04-16 323 }
09dfbcd5d Joe Perches 2015-05-05 324 arcnet_outb(CFLAGScmd | RESETclear | CONFIGclear,
09dfbcd5d Joe Perches 2015-05-05 325 ioaddr, COM9026_REG_W_COMMAND);
09dfbcd5d Joe Perches 2015-05-05 326 status = arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
^1da177e4 Linus Torvalds 2005-04-16 327 if (status & RESETflag) {
a34c0932c Joe Perches 2015-05-05 328 arc_cont(D_INIT_REASONS, " (eternal reset, status=%Xh)\n",
^1da177e4 Linus Torvalds 2005-04-16 329 status);
a34c0932c Joe Perches 2015-05-05 330 arc_cont(D_INIT_REASONS, "S5: ");
72aeea484 Joe Perches 2015-05-05 331 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 332 numprint = 0;
^1da177e4 Linus Torvalds 2005-04-16 333 release_region(*port, ARCNET_TOTAL_SIZE);
^1da177e4 Linus Torvalds 2005-04-16 334 *port-- = ports[--numports];
^1da177e4 Linus Torvalds 2005-04-16 335 continue;
^1da177e4 Linus Torvalds 2005-04-16 336 }
^1da177e4 Linus Torvalds 2005-04-16 337 /* skip this completely if an IRQ was given, because maybe
^1da177e4 Linus Torvalds 2005-04-16 338 * we're on a machine that locks during autoirq!
^1da177e4 Linus Torvalds 2005-04-16 339 */
^1da177e4 Linus Torvalds 2005-04-16 340 if (!irq) {
^1da177e4 Linus Torvalds 2005-04-16 341 /* if we do this, we're sure to get an IRQ since the
^1da177e4 Linus Torvalds 2005-04-16 342 * card has just reset and the NORXflag is on until
^1da177e4 Linus Torvalds 2005-04-16 343 * we tell it to start receiving.
^1da177e4 Linus Torvalds 2005-04-16 344 */
^1da177e4 Linus Torvalds 2005-04-16 345 airqmask = probe_irq_on();
09dfbcd5d Joe Perches 2015-05-05 346 arcnet_outb(NORXflag, ioaddr, COM9026_REG_W_INTMASK);
^1da177e4 Linus Torvalds 2005-04-16 347 udelay(1);
09dfbcd5d Joe Perches 2015-05-05 348 arcnet_outb(0, ioaddr, COM9026_REG_W_INTMASK);
^1da177e4 Linus Torvalds 2005-04-16 349 airq = probe_irq_off(airqmask);
^1da177e4 Linus Torvalds 2005-04-16 350
^1da177e4 Linus Torvalds 2005-04-16 351 if (airq <= 0) {
a34c0932c Joe Perches 2015-05-05 352 arc_cont(D_INIT_REASONS, "(airq=%d)\n", airq);
a34c0932c Joe Perches 2015-05-05 353 arc_cont(D_INIT_REASONS, "S5: ");
72aeea484 Joe Perches 2015-05-05 354 if (BUGLVL(D_INIT_REASONS))
72aeea484 Joe Perches 2015-05-05 355 numprint = 0;
^1da177e4 Linus Torvalds 2005-04-16 356 release_region(*port, ARCNET_TOTAL_SIZE);
^1da177e4 Linus Torvalds 2005-04-16 357 *port-- = ports[--numports];
^1da177e4 Linus Torvalds 2005-04-16 358 continue;
^1da177e4 Linus Torvalds 2005-04-16 359 }
^1da177e4 Linus Torvalds 2005-04-16 360 } else {
^1da177e4 Linus Torvalds 2005-04-16 361 airq = irq;
^1da177e4 Linus Torvalds 2005-04-16 362 }
^1da177e4 Linus Torvalds 2005-04-16 363
a34c0932c Joe Perches 2015-05-05 364 arc_cont(D_INIT, "(%d,", airq);
^1da177e4 Linus Torvalds 2005-04-16 365 openparen = 1;
^1da177e4 Linus Torvalds 2005-04-16 366
^1da177e4 Linus Torvalds 2005-04-16 367 /* Everything seems okay. But which shmem, if any, puts
^1da177e4 Linus Torvalds 2005-04-16 368 * back its signature byte when the card is reset?
^1da177e4 Linus Torvalds 2005-04-16 369 *
^1da177e4 Linus Torvalds 2005-04-16 370 * If there are multiple cards installed, there might be
^1da177e4 Linus Torvalds 2005-04-16 371 * multiple shmems still in the list.
^1da177e4 Linus Torvalds 2005-04-16 372 */
^1da177e4 Linus Torvalds 2005-04-16 373 #ifdef FAST_PROBE
^1da177e4 Linus Torvalds 2005-04-16 374 if (numports > 1 || numshmems > 1) {
09dfbcd5d Joe Perches 2015-05-05 375 arcnet_inb(ioaddr, COM9026_REG_R_RESET);
^1da177e4 Linus Torvalds 2005-04-16 376 mdelay(RESETtime);
^1da177e4 Linus Torvalds 2005-04-16 377 } else {
^1da177e4 Linus Torvalds 2005-04-16 378 /* just one shmem and port, assume they match */
a11a5442d Joe Perches 2015-05-05 379 arcnet_writeb(TESTvalue, iomem[0],
a11a5442d Joe Perches 2015-05-05 380 COM9026_REG_W_INTMASK);
^1da177e4 Linus Torvalds 2005-04-16 381 }
^1da177e4 Linus Torvalds 2005-04-16 382 #else
09dfbcd5d Joe Perches 2015-05-05 383 arcnet_inb(ioaddr, COM9026_REG_R_RESET);
^1da177e4 Linus Torvalds 2005-04-16 384 mdelay(RESETtime);
^1da177e4 Linus Torvalds 2005-04-16 385 #endif
^1da177e4 Linus Torvalds 2005-04-16 386
d0f6ecad3 Al Viro 2005-12-02 387 for (index = 0; index < numshmems; index++) {
d0f6ecad3 Al Viro 2005-12-02 388 u_long ptr = shmems[index];
d0f6ecad3 Al Viro 2005-12-02 389 void __iomem *base = iomem[index];
^1da177e4 Linus Torvalds 2005-04-16 390
a11a5442d Joe Perches 2015-05-05 391 if (arcnet_readb(base, COM9026_REG_R_STATUS) == TESTvalue) { /* found one */
a34c0932c Joe Perches 2015-05-05 392 arc_cont(D_INIT, "%lXh)\n", *p);
^1da177e4 Linus Torvalds 2005-04-16 393 openparen = 0;
^1da177e4 Linus Torvalds 2005-04-16 394
^1da177e4 Linus Torvalds 2005-04-16 395 /* register the card */
d0f6ecad3 Al Viro 2005-12-02 396 if (com90xx_found(*port, airq, ptr, base) == 0)
^1da177e4 Linus Torvalds 2005-04-16 397 found = 1;
^1da177e4 Linus Torvalds 2005-04-16 398 numprint = -1;
^1da177e4 Linus Torvalds 2005-04-16 399
^1da177e4 Linus Torvalds 2005-04-16 400 /* remove shmem from the list */
d0f6ecad3 Al Viro 2005-12-02 401 shmems[index] = shmems[--numshmems];
d0f6ecad3 Al Viro 2005-12-02 402 iomem[index] = iomem[numshmems];
^1da177e4 Linus Torvalds 2005-04-16 403 break; /* go to the next I/O port */
^1da177e4 Linus Torvalds 2005-04-16 404 } else {
a11a5442d Joe Perches 2015-05-05 405 arc_cont(D_INIT_REASONS, "%Xh-",
a11a5442d Joe Perches 2015-05-05 406 arcnet_readb(base, COM9026_REG_R_STATUS));
^1da177e4 Linus Torvalds 2005-04-16 407 }
^1da177e4 Linus Torvalds 2005-04-16 408 }
^1da177e4 Linus Torvalds 2005-04-16 409
^1da177e4 Linus Torvalds 2005-04-16 410 if (openparen) {
72aeea484 Joe Perches 2015-05-05 411 if (BUGLVL(D_INIT))
05a24b234 Joe Perches 2015-05-05 412 pr_cont("no matching shmem)\n");
72aeea484 Joe Perches 2015-05-05 413 if (BUGLVL(D_INIT_REASONS)) {
05a24b234 Joe Perches 2015-05-05 414 pr_cont("S5: ");
72aeea484 Joe Perches 2015-05-05 415 numprint = 0;
72aeea484 Joe Perches 2015-05-05 416 }
^1da177e4 Linus Torvalds 2005-04-16 417 }
^1da177e4 Linus Torvalds 2005-04-16 418 if (!found)
^1da177e4 Linus Torvalds 2005-04-16 419 release_region(*port, ARCNET_TOTAL_SIZE);
^1da177e4 Linus Torvalds 2005-04-16 420 *port-- = ports[--numports];
^1da177e4 Linus Torvalds 2005-04-16 421 }
^1da177e4 Linus Torvalds 2005-04-16 422
72aeea484 Joe Perches 2015-05-05 423 if (BUGLVL(D_INIT_REASONS))
05a24b234 Joe Perches 2015-05-05 424 pr_cont("\n");
^1da177e4 Linus Torvalds 2005-04-16 425
^1da177e4 Linus Torvalds 2005-04-16 426 /* Now put back TESTvalue on all leftover shmems. */
d0f6ecad3 Al Viro 2005-12-02 427 for (index = 0; index < numshmems; index++) {
a11a5442d Joe Perches 2015-05-05 428 arcnet_writeb(TESTvalue, iomem[index], COM9026_REG_W_INTMASK);
d0f6ecad3 Al Viro 2005-12-02 429 iounmap(iomem[index]);
d0f6ecad3 Al Viro 2005-12-02 430 release_mem_region(shmems[index], MIRROR_SIZE);
^1da177e4 Linus Torvalds 2005-04-16 431 }
d0f6ecad3 Al Viro 2005-12-02 432 kfree(shmems);
d0f6ecad3 Al Viro 2005-12-02 433 kfree(iomem);
^1da177e4 Linus Torvalds 2005-04-16 434 }
^1da177e4 Linus Torvalds 2005-04-16 435
:::::: The code at line 233 was first introduced by commit
:::::: a11a5442d108357d44d34407ce2ed9d77ab424a0 arcnet: com90xx: Use arcnet_readb/writeb routines
:::::: TO: Joe Perches <joe@perches.com>
:::::: CC: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 63200 bytes --]
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* hello from laminata
From: Laminata @ 2018-05-20 2:51 UTC (permalink / raw)
Hello, Happy weekend,
Please contact me on my direct email, laminatasufuk@gmail.com, i have
something important to discuss with you,
Hope to read from you soonest,
Yours beloved Laminata
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