[PATCH v2 0/7] Rid W=1 warnings in Ethernet

[PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Lee Jones]

Resending the stragglers again.                                                                                  

This set is part of a larger effort attempting to clean-up W=1                                                   
kernel builds, which are currently overwhelmingly riddled with                                                   
niggly little warnings.                                                                                          
                                                                                                                 
v2:                                                                                                              
 - Squashed IBM patches                                                                                      
 - Fixed real issue in SMSC
 - Added Andrew's Reviewed-by tags on remainder

Lee Jones (7):
  net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
  net: xen-netback: xenbus: Demote nonconformant kernel-doc headers
  net: ethernet: ti: am65-cpsw-qos: Demote non-conformant function
    header
  net: ethernet: ti: am65-cpts: Document am65_cpts_rx_enable()'s 'en'
    parameter
  net: ethernet: ibm: ibmvnic: Fix some kernel-doc misdemeanours
  net: ethernet: toshiba: ps3_gelic_net: Fix some kernel-doc
    misdemeanours
  net: ethernet: toshiba: spider_net: Document a whole bunch of function
    parameters

 drivers/net/ethernet/ibm/ibmvnic.c           | 27 ++++++++++----------
 drivers/net/ethernet/smsc/smc91x.c           |  2 +-
 drivers/net/ethernet/ti/am65-cpsw-qos.c      |  2 +-
 drivers/net/ethernet/ti/am65-cpts.c          |  2 +-
 drivers/net/ethernet/toshiba/ps3_gelic_net.c |  8 +++---
 drivers/net/ethernet/toshiba/spider_net.c    | 18 ++++++++-----
 drivers/net/xen-netback/xenbus.c             |  4 +--
 drivers/net/xen-netfront.c                   |  6 ++---
 8 files changed, 37 insertions(+), 32 deletions(-)

Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: bpf@vger.kernel.org
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Dany Madden <drt@linux.ibm.com>
Cc: Daris A Nevil <dnevil@snmc.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Erik Stahlman <erik@vt.edu>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Ishizaki Kou <kou.ishizaki@toshiba.co.jp>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Cc: Jesper Dangaard Brouer <hawk@kernel.org>
Cc: John Allen <jallen@linux.vnet.ibm.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Kurt Kanzenbach <kurt@linutronix.de>
Cc: Lijun Pan <ljp@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: netdev@vger.kernel.org
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Paul Durrant <paul@xen.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Cammaert <pc@denkart.be>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Santiago Leon <santi_leon@yahoo.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Cc: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Cc: Utz Bacher <utz.bacher@de.ibm.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: xen-devel@lists.xenproject.org
-- 
2.25.1

[PATCH 5/7] net: ethernet: ibm: ibmvnic: Fix some kernel-doc misdemeanours

[Lee Jones]

Fixes the following W=1 kernel build warning(s):

 from drivers/net/ethernet/ibm/ibmvnic.c:35:
 inlined from ‘handle_vpd_rsp’ at drivers/net/ethernet/ibm/ibmvnic.c:4124:3:
 drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'hdr_field' not described in 'build_hdr_data'
 drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'skb' not described in 'build_hdr_data'
 drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'hdr_len' not described in 'build_hdr_data'
 drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'hdr_data' not described in 'build_hdr_data'
 drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'hdr_field' not described in 'create_hdr_descs'
 drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'hdr_data' not described in 'create_hdr_descs'
 drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'len' not described in 'create_hdr_descs'
 drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'hdr_len' not described in 'create_hdr_descs'
 drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'scrq_arr' not described in 'create_hdr_descs'
 drivers/net/ethernet/ibm/ibmvnic.c:1474: warning: Function parameter or member 'txbuff' not described in 'build_hdr_descs_arr'
 drivers/net/ethernet/ibm/ibmvnic.c:1474: warning: Function parameter or member 'num_entries' not described in 'build_hdr_descs_arr'
 drivers/net/ethernet/ibm/ibmvnic.c:1474: warning: Function parameter or member 'hdr_field' not described in 'build_hdr_descs_arr'
 drivers/net/ethernet/ibm/ibmvnic.c:1832: warning: Function parameter or member 'adapter' not described in 'do_change_param_reset'
 drivers/net/ethernet/ibm/ibmvnic.c:1832: warning: Function parameter or member 'rwi' not described in 'do_change_param_reset'
 drivers/net/ethernet/ibm/ibmvnic.c:1832: warning: Function parameter or member 'reset_state' not described in 'do_change_param_reset'
 drivers/net/ethernet/ibm/ibmvnic.c:1911: warning: Function parameter or member 'adapter' not described in 'do_reset'
 drivers/net/ethernet/ibm/ibmvnic.c:1911: warning: Function parameter or member 'rwi' not described in 'do_reset'
 drivers/net/ethernet/ibm/ibmvnic.c:1911: warning: Function parameter or member 'reset_state' not described in 'do_reset'

Cc: Dany Madden <drt@linux.ibm.com>
Cc: Lijun Pan <ljp@linux.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Santiago Leon <santi_leon@yahoo.com>
Cc: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Cc: John Allen <jallen@linux.vnet.ibm.com>
Cc: netdev@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 27 +++++++++++++--------------
 drivers/net/xen-netfront.c         |  6 +++---
 2 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index aed985e08e8ad..4c4252e68de5a 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1384,10 +1384,10 @@ static int ibmvnic_close(struct net_device *netdev)
 
 /**
  * build_hdr_data - creates L2/L3/L4 header data buffer
- * @hdr_field - bitfield determining needed headers
- * @skb - socket buffer
- * @hdr_len - array of header lengths
- * @tot_len - total length of data
+ * @hdr_field: bitfield determining needed headers
+ * @skb: socket buffer
+ * @hdr_len: array of header lengths
+ * @hdr_data: buffer to write the header to
  *
  * Reads hdr_field to determine which headers are needed by firmware.
  * Builds a buffer containing these headers.  Saves individual header
@@ -1444,11 +1444,11 @@ static int build_hdr_data(u8 hdr_field, struct sk_buff *skb,
 
 /**
  * create_hdr_descs - create header and header extension descriptors
- * @hdr_field - bitfield determining needed headers
- * @data - buffer containing header data
- * @len - length of data buffer
- * @hdr_len - array of individual header lengths
- * @scrq_arr - descriptor array
+ * @hdr_field: bitfield determining needed headers
+ * @hdr_data: buffer containing header data
+ * @len: length of data buffer
+ * @hdr_len: array of individual header lengths
+ * @scrq_arr: descriptor array
  *
  * Creates header and, if needed, header extension descriptors and
  * places them in a descriptor array, scrq_arr
@@ -1496,10 +1496,9 @@ static int create_hdr_descs(u8 hdr_field, u8 *hdr_data, int len, int *hdr_len,
 
 /**
  * build_hdr_descs_arr - build a header descriptor array
- * @skb - socket buffer
- * @num_entries - number of descriptors to be sent
- * @subcrq - first TX descriptor
- * @hdr_field - bit field determining which headers will be sent
+ * @txbuff: tx buffer
+ * @num_entries: number of descriptors to be sent
+ * @hdr_field: bit field determining which headers will be sent
  *
  * This function will build a TX descriptor array with applicable
  * L2/L3/L4 packet header descriptors to be sent by send_subcrq_indirect.
@@ -1925,7 +1924,7 @@ static int ibmvnic_set_mac(struct net_device *netdev, void *p)
 	return rc;
 }
 
-/**
+/*
  * do_reset returns zero if we are able to keep processing reset events, or
  * non-zero if we hit a fatal error and must halt.
  */
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index c20b78120bb42..6ef2adbd283a3 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1580,7 +1580,7 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
 	return ERR_PTR(err);
 }
 
-/**
+/*
  * Entry point to this code when a new device is created.  Allocate the basic
  * structures and the ring buffers for communication with the backend, and
  * inform the backend of the appropriate details for those.
@@ -1657,7 +1657,7 @@ static void xennet_disconnect_backend(struct netfront_info *info)
 	}
 }
 
-/**
+/*
  * We are reconnecting to the backend, due to a suspend/resume, or a backend
  * driver restart.  We tear down our netif structure and recreate it, but
  * leave the device-layer structures intact so that this is transparent to the
@@ -2303,7 +2303,7 @@ static int xennet_connect(struct net_device *dev)
 	return 0;
 }
 
-/**
+/*
  * Callback received when the backend's state changes.
  */
 static void netback_changed(struct xenbus_device *dev,
-- 
2.25.1

[PATCH 6/7] net: ethernet: toshiba: ps3_gelic_net: Fix some kernel-doc misdemeanours

[Lee Jones]

Fixes the following W=1 kernel build warning(s):

 drivers/net/ethernet/toshiba/ps3_gelic_net.c:1107: warning: Function parameter or member 'irq' not described in 'gelic_card_interrupt'
 drivers/net/ethernet/toshiba/ps3_gelic_net.c:1107: warning: Function parameter or member 'ptr' not described in 'gelic_card_interrupt'
 drivers/net/ethernet/toshiba/ps3_gelic_net.c:1407: warning: Function parameter or member 'txqueue' not described in 'gelic_net_tx_timeout'
 drivers/net/ethernet/toshiba/ps3_gelic_net.c:1439: warning: Function parameter or member 'napi' not described in 'gelic_ether_setup_netdev_ops'
 drivers/net/ethernet/toshiba/ps3_gelic_net.c:1639: warning: Function parameter or member 'dev' not described in 'ps3_gelic_driver_probe'
 drivers/net/ethernet/toshiba/ps3_gelic_net.c:1795: warning: Function parameter or member 'dev' not described in 'ps3_gelic_driver_remove'

Cc: Geoff Levand <geoff@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Utz Bacher <utz.bacher@de.ibm.com>
Cc: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Cc: netdev@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/net/ethernet/toshiba/ps3_gelic_net.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.c b/drivers/net/ethernet/toshiba/ps3_gelic_net.c
index 3d1fc8d2ca667..55e652624bd76 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_net.c
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.c
@@ -1100,7 +1100,7 @@ static int gelic_net_poll(struct napi_struct *napi, int budget)
 	return packets_done;
 }
 
-/**
+/*
  * gelic_card_interrupt - event handler for gelic_net
  */
 static irqreturn_t gelic_card_interrupt(int irq, void *ptr)
@@ -1400,6 +1400,7 @@ static void gelic_net_tx_timeout_task(struct work_struct *work)
 /**
  * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in.
  * @netdev: interface device structure
+ * @txqueue: unused
  *
  * called, if tx hangs. Schedules a task that resets the interface
  */
@@ -1431,6 +1432,7 @@ static const struct net_device_ops gelic_netdevice_ops = {
 /**
  * gelic_ether_setup_netdev_ops - initialization of net_device operations
  * @netdev: net_device structure
+ * @napi: napi structure
  *
  * fills out function pointers in the net_device structure
  */
@@ -1632,7 +1634,7 @@ static void gelic_card_get_vlan_info(struct gelic_card *card)
 	dev_info(ctodev(card), "internal vlan %s\n",
 		 card->vlan_required? "enabled" : "disabled");
 }
-/**
+/*
  * ps3_gelic_driver_probe - add a device to the control of this driver
  */
 static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
@@ -1787,7 +1789,7 @@ static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
 	return result;
 }
 
-/**
+/*
  * ps3_gelic_driver_remove - remove a device from the control of this driver
  */
 
-- 
2.25.1

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Jakub Kicinski]

On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:
> Resending the stragglers again.                                                                                  
> 
> This set is part of a larger effort attempting to clean-up W=1                                                   
> kernel builds, which are currently overwhelmingly riddled with                                                   
> niggly little warnings.                                                                                          
>                                                                                                                  
> v2:                                                                                                              
>  - Squashed IBM patches                                                                                      
>  - Fixed real issue in SMSC
>  - Added Andrew's Reviewed-by tags on remainder

Does not apply, please rebase on net-next/master.

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Lee Jones]

On Wed, 13 Jan 2021, Jakub Kicinski wrote:

> On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:
> > Resending the stragglers again.                                                                                  
> > 
> > This set is part of a larger effort attempting to clean-up W=1                                                   
> > kernel builds, which are currently overwhelmingly riddled with                                                   
> > niggly little warnings.                                                                                          
> >                                                                                                                  
> > v2:                                                                                                              
> >  - Squashed IBM patches                                                                                      
> >  - Fixed real issue in SMSC
> >  - Added Andrew's Reviewed-by tags on remainder
> 
> Does not apply, please rebase on net-next/master.

These are based on Tuesday's next/master.

I just rebased them now with no issue.

What conflict are you seeing?

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Jakub Kicinski]

On Thu, 14 Jan 2021 08:33:49 +0000 Lee Jones wrote:
> On Wed, 13 Jan 2021, Jakub Kicinski wrote:
> 
> > On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:  
> > > Resending the stragglers again.                                                                                  
> > > 
> > > This set is part of a larger effort attempting to clean-up W=1                                                   
> > > kernel builds, which are currently overwhelmingly riddled with                                                   
> > > niggly little warnings.                                                                                          
> > >                                                                                                                  
> > > v2:                                                                                                              
> > >  - Squashed IBM patches                                                                                      
> > >  - Fixed real issue in SMSC
> > >  - Added Andrew's Reviewed-by tags on remainder  
> > 
> > Does not apply, please rebase on net-next/master.  
> 
> These are based on Tuesday's next/master.

What's next/master?

This is net-next:

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/

> I just rebased them now with no issue.
> 
> What conflict are you seeing?

Applying: net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
error: patch failed: drivers/net/ethernet/smsc/smc91x.c:2192
error: drivers/net/ethernet/smsc/smc91x.c: patch does not apply
Patch failed at 0001 net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
hint: Use 'git am --show-current-patch=diff' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Lee Jones]

On Thu, 14 Jan 2021, Jakub Kicinski wrote:

> On Thu, 14 Jan 2021 08:33:49 +0000 Lee Jones wrote:
> > On Wed, 13 Jan 2021, Jakub Kicinski wrote:
> > 
> > > On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:  
> > > > Resending the stragglers again.                                                                                  
> > > > 
> > > > This set is part of a larger effort attempting to clean-up W=1                                                   
> > > > kernel builds, which are currently overwhelmingly riddled with                                                   
> > > > niggly little warnings.                                                                                          
> > > >                                                                                                                  
> > > > v2:                                                                                                              
> > > >  - Squashed IBM patches                                                                                      
> > > >  - Fixed real issue in SMSC
> > > >  - Added Andrew's Reviewed-by tags on remainder  
> > > 
> > > Does not apply, please rebase on net-next/master.  
> > 
> > These are based on Tuesday's next/master.
> 
> What's next/master?

I'm not sure if this is a joke, or not? :)

next/master == Linux Next.  The daily merged repo where all of the
*-next branches end up to ensure interoperability.  It's also the
branch that is most heavily tested by the auto-builders to ensure the
vast majority of issues are ironed out before hitting Mainline.

> This is net-next:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/

Looks like net-next gets merged into next/master:

commit 452958f1f3d1c8980a8414f9c37c8c6de24c7d32
Merge: 1eabba209a17a f50e2f9f79164
Author: Stephen Rothwell <sfr@canb.auug.org.au>
Date:   Thu Jan 14 10:35:40 2021 +1100

    Merge remote-tracking branch 'net-next/master'

So I'm not sure what it's conflicting with.

Do you have patches in net-next that didn't make it into next/master
for some reason?

I'll try to rebase again tomorrow.

Hopefully I am able to reproduce your issue by then.

> > I just rebased them now with no issue.
> > 
> > What conflict are you seeing?
> 
> Applying: net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
> error: patch failed: drivers/net/ethernet/smsc/smc91x.c:2192
> error: drivers/net/ethernet/smsc/smc91x.c: patch does not apply
> Patch failed at 0001 net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
> hint: Use 'git am --show-current-patch=diff' to see the failed patch
> When you have resolved this problem, run "git am --continue".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Lee Jones]

On Thu, 14 Jan 2021, Lee Jones wrote:

> On Thu, 14 Jan 2021, Jakub Kicinski wrote:
> 
> > On Thu, 14 Jan 2021 08:33:49 +0000 Lee Jones wrote:
> > > On Wed, 13 Jan 2021, Jakub Kicinski wrote:
> > > 
> > > > On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:  
> > > > > Resending the stragglers again.                                                                                  
> > > > > 
> > > > > This set is part of a larger effort attempting to clean-up W=1                                                   
> > > > > kernel builds, which are currently overwhelmingly riddled with                                                   
> > > > > niggly little warnings.                                                                                          
> > > > >                                                                                                                  
> > > > > v2:                                                                                                              
> > > > >  - Squashed IBM patches                                                                                      
> > > > >  - Fixed real issue in SMSC
> > > > >  - Added Andrew's Reviewed-by tags on remainder  
> > > > 
> > > > Does not apply, please rebase on net-next/master.  
> > > 
> > > These are based on Tuesday's next/master.
> > 
> > What's next/master?
> 
> I'm not sure if this is a joke, or not? :)
> 
> next/master == Linux Next.  The daily merged repo where all of the
> *-next branches end up to ensure interoperability.  It's also the
> branch that is most heavily tested by the auto-builders to ensure the
> vast majority of issues are ironed out before hitting Mainline.
> 
> > This is net-next:
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/
> 
> Looks like net-next gets merged into next/master:
> 
> commit 452958f1f3d1c8980a8414f9c37c8c6de24c7d32
> Merge: 1eabba209a17a f50e2f9f79164
> Author: Stephen Rothwell <sfr@canb.auug.org.au>
> Date:   Thu Jan 14 10:35:40 2021 +1100
> 
>     Merge remote-tracking branch 'net-next/master'
> 
> So I'm not sure what it's conflicting with.
> 
> Do you have patches in net-next that didn't make it into next/master
> for some reason?
> 
> I'll try to rebase again tomorrow.
> 
> Hopefully I am able to reproduce your issue by then.

Okay so my development branch rebased again with no issue.

I also took the liberty to checkout net-next and cherry-pick the
patches [0], which again didn't cause a problem.

I'm not sure what else to suggest.  Is your local copy up-to-date?

[0]

lee@dell:~/projects/linux/kernel [net-next]$ gcp 0cea4b05acd57..924e1f46aba5e
Auto-merging drivers/net/ethernet/smsc/smc91x.c
[net-next 19811db3120a2] net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
 Date: Mon Oct 19 12:47:11 2020 +0100
 1 file changed, 1 insertion(+), 1 deletion(-)
[net-next dc6f4490cb64e] net: xen-netback: xenbus: Demote nonconformant kernel-doc headers
 Date: Tue Oct 20 08:00:43 2020 +0100
 1 file changed, 2 insertions(+), 2 deletions(-)
[net-next a3363cb09ae59] net: ethernet: ti: am65-cpsw-qos: Demote non-conformant function header
 Date: Tue Oct 20 09:05:38 2020 +0100
 1 file changed, 1 insertion(+), 1 deletion(-)
[net-next 005462f886c3e] net: ethernet: ti: am65-cpts: Document am65_cpts_rx_enable()'s 'en' parameter
 Date: Tue Oct 20 09:06:57 2020 +0100
 1 file changed, 1 insertion(+), 1 deletion(-)
Auto-merging drivers/net/xen-netfront.c
[net-next 9fcc32e395e09] net: ethernet: ibm: ibmvnic: Fix some kernel-doc misdemeanours
 Date: Tue Oct 20 09:42:19 2020 +0100
 2 files changed, 16 insertions(+), 17 deletions(-)
[net-next 15ba865fef481] net: ethernet: toshiba: ps3_gelic_net: Fix some kernel-doc misdemeanours
 Date: Tue Oct 20 10:10:14 2020 +0100
 1 file changed, 5 insertions(+), 3 deletions(-)
[net-next f815eb7cbd7f5] net: ethernet: toshiba: spider_net: Document a whole bunch of function parameters
 Date: Tue Oct 20 10:18:21 2020 +0100
 1 file changed, 11 insertions(+), 7 deletions(-)

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Christophe Leroy]

Le 15/01/2021 à 12:18, Lee Jones a écrit :
> On Thu, 14 Jan 2021, Lee Jones wrote:
> 
>> On Thu, 14 Jan 2021, Jakub Kicinski wrote:
>>
>>> On Thu, 14 Jan 2021 08:33:49 +0000 Lee Jones wrote:
>>>> On Wed, 13 Jan 2021, Jakub Kicinski wrote:
>>>>
>>>>> On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:
>>>>>> Resending the stragglers again.
>>>>>>
>>>>>> This set is part of a larger effort attempting to clean-up W=1
>>>>>> kernel builds, which are currently overwhelmingly riddled with
>>>>>> niggly little warnings.
>>>>>>                                                                                                                   
>>>>>> v2:
>>>>>>   - Squashed IBM patches
>>>>>>   - Fixed real issue in SMSC
>>>>>>   - Added Andrew's Reviewed-by tags on remainder
>>>>>
>>>>> Does not apply, please rebase on net-next/master.
>>>>
>>>> These are based on Tuesday's next/master.
>>>
>>> What's next/master?
>>
>> I'm not sure if this is a joke, or not? :)
>>
>> next/master == Linux Next.  The daily merged repo where all of the
>> *-next branches end up to ensure interoperability.  It's also the
>> branch that is most heavily tested by the auto-builders to ensure the
>> vast majority of issues are ironed out before hitting Mainline.
>>
>>> This is net-next:
>>>
>>> https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/
>>
>> Looks like net-next gets merged into next/master:
>>
>> commit 452958f1f3d1c8980a8414f9c37c8c6de24c7d32
>> Merge: 1eabba209a17a f50e2f9f79164
>> Author: Stephen Rothwell <sfr@canb.auug.org.au>
>> Date:   Thu Jan 14 10:35:40 2021 +1100
>>
>>      Merge remote-tracking branch 'net-next/master'
>>
>> So I'm not sure what it's conflicting with.
>>
>> Do you have patches in net-next that didn't make it into next/master
>> for some reason?
>>
>> I'll try to rebase again tomorrow.
>>
>> Hopefully I am able to reproduce your issue by then.
> 
> Okay so my development branch rebased again with no issue.

Rebasing is not same as patches application.

> 
> I also took the liberty to checkout net-next and cherry-pick the
> patches [0], which again didn't cause a problem.

Also normal, cherry-picking is not the same as applying a patch series.

> 
> I'm not sure what else to suggest.  Is your local copy up-to-date?

I guess so, I have the same problem as Jakub, see below. I had to use 'git am -3' to apply you 
series. As you can see, git falls back to 3 way merge for patch 1, which means your series is close 
to but not fully in sync with net-next.


[root@localhost linux-powerpc]# git remote -v
net-next	https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git (fetch)
net-next	https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git (push)

[root@localhost linux-powerpc]# git checkout net-next/master -b net-next
Switched to a new branch 'net-next'

[root@localhost linux-powerpc]# git am /root/Downloads/Rid-W-1-warnings-in-Ethernet.patch
Applying: net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
error: patch failed: drivers/net/ethernet/smsc/smc91x.c:2192
error: drivers/net/ethernet/smsc/smc91x.c: patch does not apply
Patch failed at 0001 net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
hint: Use 'git am --show-current-patch' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

[root@localhost linux-powerpc]# git am --abort

[root@localhost linux-powerpc]# git am -3 /root/Downloads/Rid-W-1-warnings-in-Ethernet.patch
Applying: net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
Using index info to reconstruct a base tree...
M	drivers/net/ethernet/smsc/smc91x.c
Falling back to patching base and 3-way merge...
Auto-merging drivers/net/ethernet/smsc/smc91x.c
Applying: net: xen-netback: xenbus: Demote nonconformant kernel-doc headers
Applying: net: ethernet: ti: am65-cpsw-qos: Demote non-conformant function header
Applying: net: ethernet: ti: am65-cpts: Document am65_cpts_rx_enable()'s 'en' parameter
Applying: net: ethernet: ibm: ibmvnic: Fix some kernel-doc misdemeanours
Applying: net: ethernet: toshiba: ps3_gelic_net: Fix some kernel-doc misdemeanours
Applying: net: ethernet: toshiba: spider_net: Document a whole bunch of function parameters


Christophe

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Lee Jones]

On Fri, 15 Jan 2021, Christophe Leroy wrote:

> 
> 
> Le 15/01/2021 à 12:18, Lee Jones a écrit :
> > On Thu, 14 Jan 2021, Lee Jones wrote:
> > 
> > > On Thu, 14 Jan 2021, Jakub Kicinski wrote:
> > > 
> > > > On Thu, 14 Jan 2021 08:33:49 +0000 Lee Jones wrote:
> > > > > On Wed, 13 Jan 2021, Jakub Kicinski wrote:
> > > > > 
> > > > > > On Wed, 13 Jan 2021 16:41:16 +0000 Lee Jones wrote:
> > > > > > > Resending the stragglers again.
> > > > > > > 
> > > > > > > This set is part of a larger effort attempting to clean-up W=1
> > > > > > > kernel builds, which are currently overwhelmingly riddled with
> > > > > > > niggly little warnings.
> > > > > > > v2:
> > > > > > >   - Squashed IBM patches
> > > > > > >   - Fixed real issue in SMSC
> > > > > > >   - Added Andrew's Reviewed-by tags on remainder
> > > > > > 
> > > > > > Does not apply, please rebase on net-next/master.
> > > > > 
> > > > > These are based on Tuesday's next/master.
> > > > 
> > > > What's next/master?
> > > 
> > > I'm not sure if this is a joke, or not? :)
> > > 
> > > next/master == Linux Next.  The daily merged repo where all of the
> > > *-next branches end up to ensure interoperability.  It's also the
> > > branch that is most heavily tested by the auto-builders to ensure the
> > > vast majority of issues are ironed out before hitting Mainline.
> > > 
> > > > This is net-next:
> > > > 
> > > > https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/
> > > 
> > > Looks like net-next gets merged into next/master:
> > > 
> > > commit 452958f1f3d1c8980a8414f9c37c8c6de24c7d32
> > > Merge: 1eabba209a17a f50e2f9f79164
> > > Author: Stephen Rothwell <sfr@canb.auug.org.au>
> > > Date:   Thu Jan 14 10:35:40 2021 +1100
> > > 
> > >      Merge remote-tracking branch 'net-next/master'
> > > 
> > > So I'm not sure what it's conflicting with.
> > > 
> > > Do you have patches in net-next that didn't make it into next/master
> > > for some reason?
> > > 
> > > I'll try to rebase again tomorrow.
> > > 
> > > Hopefully I am able to reproduce your issue by then.
> > 
> > Okay so my development branch rebased again with no issue.
> 
> Rebasing is not same as patches application.
> 
> > 
> > I also took the liberty to checkout net-next and cherry-pick the
> > patches [0], which again didn't cause a problem.
> 
> Also normal, cherry-picking is not the same as applying a patch series.
> 
> > 
> > I'm not sure what else to suggest.  Is your local copy up-to-date?
> 
> I guess so, I have the same problem as Jakub, see below. I had to use 'git
> am -3' to apply you series. As you can see, git falls back to 3 way merge
> for patch 1, which means your series is close to but not fully in sync with
> net-next.
> 
> 
> [root@localhost linux-powerpc]# git remote -v
> net-next	https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git (fetch)
> net-next	https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git (push)
> 
> [root@localhost linux-powerpc]# git checkout net-next/master -b net-next
> Switched to a new branch 'net-next'
> 
> [root@localhost linux-powerpc]# git am /root/Downloads/Rid-W-1-warnings-in-Ethernet.patch
> Applying: net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
> error: patch failed: drivers/net/ethernet/smsc/smc91x.c:2192
> error: drivers/net/ethernet/smsc/smc91x.c: patch does not apply
> Patch failed at 0001 net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
> hint: Use 'git am --show-current-patch' to see the failed patch
> When you have resolved this problem, run "git am --continue".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".
> 
> [root@localhost linux-powerpc]# git am --abort
> 
> [root@localhost linux-powerpc]# git am -3 /root/Downloads/Rid-W-1-warnings-in-Ethernet.patch
> Applying: net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
> Using index info to reconstruct a base tree...
> M	drivers/net/ethernet/smsc/smc91x.c
> Falling back to patching base and 3-way merge...
> Auto-merging drivers/net/ethernet/smsc/smc91x.c
> Applying: net: xen-netback: xenbus: Demote nonconformant kernel-doc headers
> Applying: net: ethernet: ti: am65-cpsw-qos: Demote non-conformant function header
> Applying: net: ethernet: ti: am65-cpts: Document am65_cpts_rx_enable()'s 'en' parameter
> Applying: net: ethernet: ibm: ibmvnic: Fix some kernel-doc misdemeanours
> Applying: net: ethernet: toshiba: ps3_gelic_net: Fix some kernel-doc misdemeanours
> Applying: net: ethernet: toshiba: spider_net: Document a whole bunch of function parameters

Seeing as you went to all that effort, I thought it was only fair that
I did the same.  After some digging my tentative conclusion is that
Linux -next is up-to-date with net-next, but net-next is not
up-to-date with Linux -next.

I think this patch is conflicting:

 smc91x: remove GPIOLIB dependency.

Was that taken in via another tree?  If not resolved there is a chance
that this may cause a conflict when net-next is merged into Mainline.

..

Okay, so what would you like me to do?  Would you like me to re-submit
the set based only on net-next, or are you happy with your 3-way
merge?

I'll do as you ask.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 0/7] Rid W=1 warnings in Ethernet

[Jakub Kicinski]

On Fri, 15 Jan 2021 13:38:48 +0000 Lee Jones wrote:
> Okay, so what would you like me to do?  Would you like me to re-submit
> the set based only on net-next

Yes, rebase your patches on net-next, recheck everything builds okay
and resubmit. You should always develop against the tree that will
merge your patches. I appreciate for your janitorial work using
linux-next is more expedient, but as you can see it causes trouble,
this is not the first time your patches don't apply to net-next IIRC.