net/9p/usbg: allow building as standalone module

There is no reason only the usbg transport would not be its own module,
so make it tristate.

In particular, this fixes a couple of issues the curren

net/9p/usbg: allow building as standalone module

There is no reason only the usbg transport would not be its own module,
so make it tristate.

In particular, this fixes a couple of issues the current bool had:
- trans_usbg was apparently not compiled at all when NET_9P=m
- the workaround added in commit 2193ede180dd ("net/9p/usbg: fix
CONFIG_USB_GADGET dependency") became redundant because a tristate item
cannot be built-in when its dependency is a module, so we can depend on
USB_GADGET "normally" again.

Cc: Michael Grzeschik <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Message-ID: <[email protected]>
Signed-off-by: Dominique Martinet <[email protected]>

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net/9p/usbg: Fix build error

When CONFIG_NET_9P_USBG=y but CONFIG_USB_LIBCOMPOSITE=m and
CONFIG_CONFIGFS_FS=m, the following build error occurs:

riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o:

net/9p/usbg: Fix build error

When CONFIG_NET_9P_USBG=y but CONFIG_USB_LIBCOMPOSITE=m and
CONFIG_CONFIGFS_FS=m, the following build error occurs:

riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_free_func':
trans_usbg.c:(.text+0x124): undefined reference to `usb_free_all_descriptors'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_rx_complete':
trans_usbg.c:(.text+0x2d8): undefined reference to `usb_interface_id'
riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x2f6): undefined reference to `usb_string_id'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_func_bind':
trans_usbg.c:(.text+0x31c): undefined reference to `usb_ep_autoconfig'
riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x336): undefined reference to `usb_ep_autoconfig'
riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x378): undefined reference to `usb_assign_descriptors'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `f_usb9pfs_opts_buflen_store':
trans_usbg.c:(.text+0x49e): undefined reference to `usb_put_function_instance'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_alloc_instance':
trans_usbg.c:(.text+0x5fe): undefined reference to `config_group_init_type_name'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_alloc':
trans_usbg.c:(.text+0x7aa): undefined reference to `config_ep_by_speed'
riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x7ea): undefined reference to `config_ep_by_speed'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_set_alt':
trans_usbg.c:(.text+0x828): undefined reference to `alloc_ep_req'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_modexit':
trans_usbg.c:(.exit.text+0x10): undefined reference to `usb_function_unregister'
riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_modinit':
trans_usbg.c:(.init.text+0x1e): undefined reference to `usb_function_register'

Select the config for NET_9P_USBG to fix it.

Fixes: a3be076dc174 ("net/9p/usbg: Add new usb gadget function transport")
Signed-off-by: Jinjie Ruan <[email protected]>
Tested-by: Kexy Biscuit <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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net/9p/usbg: fix CONFIG_USB_GADGET dependency

When USB gadget support is in a loadable module, 9pfs cannot
link to it as a built-in driver:

x86_64-linux-ld: vmlinux.o: in function `usb9pfs_free_fun

net/9p/usbg: fix CONFIG_USB_GADGET dependency

When USB gadget support is in a loadable module, 9pfs cannot
link to it as a built-in driver:

x86_64-linux-ld: vmlinux.o: in function `usb9pfs_free_func':
trans_usbg.c:(.text+0x1070012): undefined reference to `usb_free_all_descriptors'
x86_64-linux-ld: vmlinux.o: in function `disable_ep':
trans_usbg.c:(.text+0x1070528): undefined reference to `usb_ep_disable'
x86_64-linux-ld: vmlinux.o: in function `usb9pfs_func_unbind':
trans_usbg.c:(.text+0x10705df): undefined reference to `usb_ep_free_request'
x86_64-linux-ld: trans_usbg.c:(.text+0x107061f): undefined reference to `usb_ep_free_request'
x86_64-linux-ld: vmlinux.o: in function `usb9pfs_func_bind':
trans_usbg.c:(.text+0x107069f): undefined reference to `usb_interface_id'
x86_64-linux-ld: trans_usbg.c:(.text+0x10706b5): undefined reference to `usb_string_id'

Change the Kconfig dependency to only allow this to be enabled
when it can successfully link and work.

Fixes: a3be076dc174 ("net/9p/usbg: Add new usb gadget function transport")
Signed-off-by: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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net/9p/usbg: Add new usb gadget function transport

Add the new gadget function for 9pfs transport. This function is
defining an simple 9pfs transport interface that consists of one in and
one out en

net/9p/usbg: Add new usb gadget function transport

Add the new gadget function for 9pfs transport. This function is
defining an simple 9pfs transport interface that consists of one in and
one out endpoint. The endpoints transmit and receive the 9pfs protocol
payload when mounting a 9p filesystem over usb.

Tested-by: Andrzej Pietrasiewicz <[email protected]>
Signed-off-by: Michael Grzeschik <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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netfs, 9p: Implement helpers for new write code

Implement the helpers for the new write code in 9p. There's now an
optional ->prepare_write() that allows the filesystem to set the parameters
for th

netfs, 9p: Implement helpers for new write code

Implement the helpers for the new write code in 9p. There's now an
optional ->prepare_write() that allows the filesystem to set the parameters
for the next write, such as maximum size and maximum segment count, and an
->issue_write() that is called to initiate an (asynchronous) write
operation.

Signed-off-by: David Howells <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
cc: Eric Van Hensbergen <[email protected]>
cc: Latchesar Ionkov <[email protected]>
cc: Dominique Martinet <[email protected]>
cc: Christian Schoenebeck <[email protected]>
cc: [email protected]
cc: [email protected]
cc: [email protected]

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9p: Remove INET dependency

9pfs can run over assorted transports, so it doesn't have an INET
dependency. Drop it and remove the includes of linux/inet.h.

NET_9P_FD/trans_fd.o builds without INET o

9p: Remove INET dependency

9pfs can run over assorted transports, so it doesn't have an INET
dependency. Drop it and remove the includes of linux/inet.h.

NET_9P_FD/trans_fd.o builds without INET or UNIX and is usable over
plain file descriptors. However, tcp and unix functionality is still
built and would generate runtime failures if used. Add imply INET and
UNIX to NET_9P_FD, so functionality is enabled by default but can still
be explicitly disabled.

This allows configuring 9pfs over Xen with INET and UNIX disabled.

Signed-off-by: Jason Andryuk <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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9p/trans_fd: split into dedicated module

This allows these transports only to be used when needed.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas

9p/trans_fd: split into dedicated module

This allows these transports only to be used when needed.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Weißschuh <[email protected]>
[Dominique: Kconfig NET_9P_FD: -depends VIRTIO, +default NET_9P]
Signed-off-by: Dominique Martinet <[email protected]>

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net: remove redundant 'depends on NET'

These Kconfig files are included from net/Kconfig, inside the
if NET ... endif.

Remove 'depends on NET', which we know it is already met.

Signed-off-by: Masa

net: remove redundant 'depends on NET'

These Kconfig files are included from net/Kconfig, inside the
if NET ... endif.

Remove 'depends on NET', which we know it is already met.

Signed-off-by: Masahiro Yamada <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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IB: Revert "remove redundant INFINIBAND kconfig dependencies"

Several subsystems depend on INFINIBAND_ADDR_TRANS, which in turn depends
on INFINIBAND. However, when with CONFIG_INIFIBAND=m, this lea

IB: Revert "remove redundant INFINIBAND kconfig dependencies"

Several subsystems depend on INFINIBAND_ADDR_TRANS, which in turn depends
on INFINIBAND. However, when with CONFIG_INIFIBAND=m, this leads to a
link error when another driver using it is built-in. The
INFINIBAND_ADDR_TRANS dependency is insufficient here as this is
a 'bool' symbol that does not force anything to be a module in turn.

fs/cifs/smbdirect.o: In function `smbd_disconnect_rdma_work':
smbdirect.c:(.text+0x1e4): undefined reference to `rdma_disconnect'
net/9p/trans_rdma.o: In function `rdma_request':
trans_rdma.c:(.text+0x7bc): undefined reference to `rdma_disconnect'
net/9p/trans_rdma.o: In function `rdma_destroy_trans':
trans_rdma.c:(.text+0x830): undefined reference to `ib_destroy_qp'
trans_rdma.c:(.text+0x858): undefined reference to `ib_dealloc_pd'

Fixes: 9533b292a7ac ("IB: remove redundant INFINIBAND kconfig dependencies")
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Greg Thelen <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

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IB: remove redundant INFINIBAND kconfig dependencies

INFINIBAND_ADDR_TRANS depends on INFINIBAND. So there's no need for
options which depend INFINIBAND_ADDR_TRANS to also depend on INFINIBAND.
Rem

IB: remove redundant INFINIBAND kconfig dependencies

INFINIBAND_ADDR_TRANS depends on INFINIBAND. So there's no need for
options which depend INFINIBAND_ADDR_TRANS to also depend on INFINIBAND.
Remove the unnecessary INFINIBAND depends.

Signed-off-by: Greg Thelen <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND

All Xen frontends need to select this symbol to avoid a link error:

net/built-in.o: In function `p9_trans_xen_init':
:(.text+0x149e9c): undefined referen

xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND

All Xen frontends need to select this symbol to avoid a link error:

net/built-in.o: In function `p9_trans_xen_init':
:(.text+0x149e9c): undefined reference to `__xenbus_register_frontend'

Fixes: d4b40a02f837 ("xen/9pfs: build 9pfs Xen transport driver")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Stefano Stabellini <[email protected]>

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xen/9pfs: build 9pfs Xen transport driver

This patch adds a Kconfig option and Makefile support for building the
9pfs Xen driver.

CC: [email protected]
CC: [email protected]
CC: [email protected]

xen/9pfs: build 9pfs Xen transport driver

This patch adds a Kconfig option and Makefile support for building the
9pfs Xen driver.

CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: Eric Van Hensbergen <[email protected]>
CC: Ron Minnich <[email protected]>
CC: Latchesar Ionkov <[email protected]>
CC: [email protected]

Signed-off-by: Stefano Stabellini <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>

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net/9p: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux ker

net/9p: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: "David S. Miller" <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Acked-by: David S. Miller <[email protected]>

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9p: remove experimental tag from tested configurations

The 9p client is currently undergoing regular regresssion and
stress testing as a by-product of the virtfs work. I think its
finally time to t

9p: remove experimental tag from tested configurations

The 9p client is currently undergoing regular regresssion and
stress testing as a by-product of the virtfs work. I think its
finally time to take off the experimental tags from the well-tested
code paths.

Signed-off-by: Eric Van Hensbergen <[email protected]>

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9p: disallow RDMA if RDMA CM isn't available

If INET=y and INFINIBAND=y, but IPV6=m then INFINIBAND_ADDR_TRANS is set
to n and the RDMA CM functions rdma_connect() et al are not built.
However, the

9p: disallow RDMA if RDMA CM isn't available

If INET=y and INFINIBAND=y, but IPV6=m then INFINIBAND_ADDR_TRANS is set
to n and the RDMA CM functions rdma_connect() et al are not built.
However, the current config dependencies allow NET_9P_RDMA to be selected
in this, which leads to a build failure. Fix this by adding a dependency
on INFINIBAND_ADDR_TRANS to disallow NET_9P_RDMA in this case.

Reported-by: Randy Dunlap <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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9p: restrict RDMA usage

linux-next:

Make 9p's RDMA option depend on INET since it uses Infiniband rdma_*
functions and that code depends on INET. Otherwise 9p can try to
use symbols which don't ex

9p: restrict RDMA usage

linux-next:

Make 9p's RDMA option depend on INET since it uses Infiniband rdma_*
functions and that code depends on INET. Otherwise 9p can try to
use symbols which don't exist.

ERROR: "rdma_destroy_id" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_connect" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_create_id" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_create_qp" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_resolve_route" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_disconnect" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_resolve_addr" [net/9p/9pnet_rdma.ko] undefined!

I used an if/endif block so that the menu items would remain
presented together.

Also correct an article adjective.

Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>

show more ...

9p: restrict RDMA usage

Make 9p's RDMA option depend on INET since it uses Infiniband rdma_*
functions and that code depends on INET. Otherwise 9p can try to
use symbols which don't exist.

ERROR:

9p: restrict RDMA usage

Make 9p's RDMA option depend on INET since it uses Infiniband rdma_*
functions and that code depends on INET. Otherwise 9p can try to
use symbols which don't exist.

ERROR: "rdma_destroy_id" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_connect" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_create_id" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_create_qp" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_resolve_route" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_disconnect" [net/9p/9pnet_rdma.ko] undefined!
ERROR: "rdma_resolve_addr" [net/9p/9pnet_rdma.ko] undefined!

I used an if/endif block so that the menu items would remain
presented together.

Also correct an article adjective.

Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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9p: rdma: RDMA Transport Support for 9P

This patch implements the RDMA transport provider for 9P. It allows
mounts to be performed over iWARP and IB capable network interfaces.

Signed-off-by: Tom T

9p: rdma: RDMA Transport Support for 9P

This patch implements the RDMA transport provider for 9P. It allows
mounts to be performed over iWARP and IB capable network interfaces.

Signed-off-by: Tom Tucker <[email protected]>
Signed-off-by: Latchesar Ionkov <[email protected]>

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9p: fix error path during early mount

There was some cleanup issues during early mount which would trigger
a kernel bug for certain types of failure. This patch reorganizes the
cleanup to get rid o

9p: fix error path during early mount

There was some cleanup issues during early mount which would trigger
a kernel bug for certain types of failure. This patch reorganizes the
cleanup to get rid of the bad behavior.

This also merges the 9pnet and 9pnet_fd modules for the purpose of
configuration and initialization. Keeping the fd transport separate
from the core 9pnet code seemed like a good idea at the time, but in
practice has caused more harm and confusion than good.

Signed-off-by: Eric Van Hensbergen <[email protected]>

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9p: add virtio transport

This adds a transport to 9p for communicating between guests and a host
using a virtio based transport.

Signed-off-by: Eric Van Hensbergen <[email protected]>

typo fixes

Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.

Because this is a consolidation of a coup

typo fixes

Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.

Because this is a consolidation of a couple old missed patches, it touches both
Kconfigs and documentation texts.

Signed-off-by: Matt LaPlante <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>

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9p: Make transports dynamic

This patch abstracts out the interfaces to underlying transports so that
new transports can be added as modules. This should also allow kernel
configuration of transport

9p: Make transports dynamic

This patch abstracts out the interfaces to underlying transports so that
new transports can be added as modules. This should also allow kernel
configuration of transports without ifdef-hell.

Signed-off-by: Eric Van Hensbergen <[email protected]>

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9p: Reorganization of 9p file system code

This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
It moves the transport, packet marshalling and connection layers to net/9p
leavi

9p: Reorganization of 9p file system code

This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
It moves the transport, packet marshalling and connection layers to net/9p
leaving only the VFS related files in fs/9p. This work is being done in
preparation for in-kernel 9p servers as well as alternate 9p clients (other
than VFS).

Signed-off-by: Latchesar Ionkov <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>

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