linux.git/arch/xtensa/platforms, branch v6.9

Merge tag 'xtensa-20240502' of https://github.com/jcmvbkbc/linux-xtensa

2024-05-02T17:41:28+00:00

Pull xtensa fixes from Max Filippov:

 - fix unused variable warning caused by empty flush_dcache_page()
   definition

 - fix stack unwinding on windowed noMMU XIP configurations

 - fix Coccinelle warning 'opportunity for min()' in xtensa ISS platform
   code

* tag 'xtensa-20240502' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: remove redundant flush_dcache_page and ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE macros
  tty: xtensa/iss: Use min() to fix Coccinelle warning
  xtensa: fix MAKE_PC_FROM_RA second argument

tty: xtensa/iss: Use min() to fix Coccinelle warning

2024-04-04T09:10:44+00:00

Inline strlen() and use min() to fix the following Coccinelle/coccicheck
warning reported by minmax.cocci:

	WARNING opportunity for min()

Signed-off-by: Thorsten Blum 
Message-Id: <20240404075811.6936-3-thorsten.blum@toblux.com>
Reviewed-by: Jiri Slaby 
Signed-off-by: Max Filippov

block: pass a queue_limits argument to blk_alloc_disk

2024-02-19T23:58:23+00:00

Pass a queue_limits to blk_alloc_disk and apply it if non-NULL.  This
will allow allocating queues with valid queue limits instead of setting
the values one at a time later.

Also change blk_alloc_disk to return an ERR_PTR instead of just NULL
which can't distinguish errors.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Dan Williams 
Reviewed-by: Himanshu Madhani 
Link: https://lore.kernel.org/r/20240215071055.2201424-2-hch@lst.de
Signed-off-by: Jens Axboe

tty: xtensa/iss: use u8

2023-12-08T11:02:38+00:00

Switch character types to u8. To conform to characters in the rest of
the tty layer.

Signed-off-by: "Jiri Slaby (SUSE)" 
Cc: Chris Zankel 
Cc: Max Filippov 
Link: https://lore.kernel.org/r/20231206073712.17776-28-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman

xtensa: iss/network: make functions static

2023-09-20T12:03:21+00:00

Make 2 functions static to prevent build warnings:

arch/xtensa/platforms/iss/network.c:204:16: warning: no previous prototype for 'tuntap_protocol' [-Wmissing-prototypes]
  204 | unsigned short tuntap_protocol(struct sk_buff *skb)
arch/xtensa/platforms/iss/network.c:444:6: warning: no previous prototype for 'iss_net_user_timer_expire' [-Wmissing-prototypes]
  444 | void iss_net_user_timer_expire(struct timer_list *unused)

Fixes: 7282bee78798 ("xtensa: Architecture support for Tensilica Xtensa Part 8")
Fixes: d8479a21a98b ("xtensa: Convert timers to use timer_setup()")
Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-14-rdunlap@infradead.org>
Signed-off-by: Max Filippov

tty: make tty_operations::write()'s count size_t

2023-08-11T19:12:46+00:00

Unify with the rest of the code. Use size_t for counts and ssize_t for
retval.

Signed-off-by: "Jiri Slaby (SUSE)" 
Link: https://lore.kernel.org/r/20230810091510.13006-30-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman

tty: propagate u8 data to tty_operations::write()

2023-08-11T19:12:46+00:00

Data are now typed as u8. Propagate this change to
tty_operations::write().

Signed-off-by: "Jiri Slaby (SUSE)" 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Cc: Matt Turner 
Cc: Geert Uytterhoeven 
Cc: Richard Weinberger 
Cc: Anton Ivanov 
Cc: Johannes Berg 
Cc: Chris Zankel 
Cc: Max Filippov 
Cc: Arnd Bergmann 
Cc: Vaibhav Gupta 
Cc: Jens Taprogge 
Cc: Karsten Keil 
Cc: Scott Branden 
Cc: Ulf Hansson 
Cc: "David S. Miller" 
Cc: Eric Dumazet 
Cc: Jakub Kicinski 
Cc: Paolo Abeni 
Cc: Heiko Carstens 
Cc: Vasily Gorbik 
Cc: Alexander Gordeev 
Cc: Christian Borntraeger 
Cc: Sven Schnelle 
Cc: David Lin 
Cc: Johan Hovold 
Cc: Alex Elder 
Cc: Laurentiu Tudor 
Cc: Jiri Kosina 
Cc: David Sterba 
Cc: Shawn Guo 
Cc: Sascha Hauer 
Cc: Pengutronix Kernel Team 
Cc: Fabio Estevam 
Cc: NXP Linux Team 
Cc: Arnaud Pouliquen 
Cc: Oliver Neukum 
Cc: Mathias Nyman 
Cc: Marcel Holtmann 
Cc: Johan Hedberg 
Cc: Luiz Augusto von Dentz 
Link: https://lore.kernel.org/r/20230810091510.13006-28-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman

tty: xtensa/iss: drop unneeded tty_operations hooks

2023-08-11T19:12:44+00:00

All ::flush_chars(), ::hangup(), and ::wait_until_sent() from struct
tty_operations are optional. There is no need to provide them with
empty bodies.

tty_operations::put_char() needs not be provided if it is the same as
tty_operations::write(tty, &ch, 1).

So drop all of them.

Signed-off-by: "Jiri Slaby (SUSE)" 
Cc: Chris Zankel 
Cc: Max Filippov 
Acked-by: Max Filippov 
Link: https://lore.kernel.org/r/20230810091510.13006-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman

xtensa: ISS: fix call to split_if_spec

2023-07-11T04:41:00+00:00

split_if_spec expects a NULL-pointer as an end marker for the argument
list, but tuntap_probe never supplied that terminating NULL. As a result
incorrectly formatted interface specification string may cause a crash
because of the random memory access. Fix that by adding NULL terminator
to the split_if_spec argument list.

Cc: stable@vger.kernel.org
Fixes: 7282bee78798 ("[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 8")
Signed-off-by: Max Filippov

xtensa: ISS: add comment about etherdev freeing

2023-07-11T04:40:58+00:00

iss_net_configure explicitly frees etherdev in all error return paths
except one where register_netdevice fails. In that remaining error
return path the etherdev is freed by the iss_net_pdev_release callback
triggered by the platform_device_unregister call. Add a comment stating
that.

Signed-off-by: Max Filippov