Commit graph

140887 commits

Author SHA1 Message Date
Dawid Gorecki
aea2edcc00 ena: Move ena_copy_eni_metrics into separate task
Copying ENI metrics was done in callout context, this caused the driver
to panic when sample_interval was set to a value other than 0, as the
admin queue call which was executed could sleep while waiting on
a condition variable. Taskqueue, unlike callout, allows for sleeping, so
moving the function to a separate taskqueue fixes the problem.
ena_timer_service is still responsible for scheduling the taskqueue.

Stop draining the callout during ena_up/ena_down. This was done to
prevent a race between ena_up/down and ena_copy_eni_metrics admin queue
calls. Since ena_metrics_task is protected by ENA_LOCK there is no
possibility of a race between ena_up/down and ena_metrics_task.

Remove a comment about locking in ena_timer_service. With ENI metrics
in a separate task this comment became obsolete.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit b899a02ad7)
2022-07-26 21:30:15 +02:00
Dawid Gorecki
c5da1ee63d ena: Use atomic_load/store functions for first_interrupt variable
Surround cases of possible simultaneous access to the first_interrupt
variable with atomic_load/store functions.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit 0ac122c388)
2022-07-26 21:30:15 +02:00
Dawid Gorecki
c41b1259ce ena: Store ticks of last Tx cleanup
Store timestamp of last cleanup in Tx ring structure. This does not
change anything during normal operation of the driver but could be
useful when the device fails for some reason.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit d8aba82b5c)
2022-07-26 21:30:15 +02:00
Dawid Gorecki
609b1df672 ena: Prevent LLQ initialization when membar isn't exposed
The ena_com_config_dev_mode() function performs many LLQ related
calculations and sends an admin command to configure LLQ in the device.

All the LLQ related operations are unnecessary if the driver fails to
find LLQ memory bar.

Move LLQ memory bar allocation to separate helper function
ena_map_llq_mem_bar and execute this function before LLQ configuration.
If the LLQ memory bar cannot be allocated, then LLQ configuration is
skipped.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit 90232d18ca)
2022-07-26 21:30:14 +02:00
Dawid Gorecki
274af2948a ena: Extend debug prints for invalid req_id resets
Print information about qid if req_id is invalid. Add information about
qid and req_id if mbuf is invalid.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit a9c39b031f)
2022-07-26 21:30:14 +02:00
Dawid Gorecki
963a1b06d9 ena: Move reset completion logging to the reset function
While ena_restore_device is called from the reset task, it can also be
called from other locations in the driver, for example in netmap
specific code. Move the reset completion logging to reset task, so it
better represents when the reset actually happened.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit d209ffee15)
2022-07-26 21:30:14 +02:00
Dawid Gorecki
afc13757ea ena: Add ena_ring_tx_doorbell() function
Add ena_ring_tx_doorbell function to remove code duplication.

Obtained from: Semihalf
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

(cherry picked from commit 3501d4f17e)
2022-07-26 21:30:14 +02:00
Ed Maste
32120f55ff console: add U+276E and U+276F glyphs
U+276E Heavy Left-Pointing Angle Quotation Mark Ornament
U+276F Heavy Right-Pointing Angle Quotation Mark Ornament

U+276F is used by zprezto (zsh config package).

For the normal font I used the bold font glyphs for U+003C < and
U+003E >.  The bold font glyphs are new.

PR:		232494
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit f7d5459ece)
2022-07-26 09:41:48 -04:00
Ed Maste
01e2fef446 Update Terminus console font to 4.49
As in the past Dimitar Zhekov provided a copy of Terminus under a BSD
license for use by our console.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

(cherry picked from commit cd8401dbde)
2022-07-26 09:16:16 -04:00
Rick Macklem
488f9d8527 nfscl: Move nfsrpc_destroysession into nfscommon
This patch moves nfsrpc_destroysession() into nfscommon.ko
and also modifies its arguments slightly.  This will allow
the function to be called from nfsv4_sequencelookup() in
a future commit.

This patch should not result in a semantics change.

PR: 260011
(cherry picked from commit dff31ae1c5)
2022-07-25 14:05:45 -07:00
Rick Macklem
516998709a nfscl: Change the cred argument to non-NULL for pNFS proxies
Commit 326bcf9394 added a "cred" argument to nfscl_reqstart().
For the pNFS proxy calls on the server, the argument
should be "cred" instead of NULL.
This patch fixes this.

Since the argument is not yet used, this patch
should not result in a semantics change.

PR: 260011
(cherry picked from commit 2b766d5e5a)
2022-07-25 13:57:54 -07:00
Mark Johnston
3be1eaa32b eventtimer: Fix several races in the timer reload code
In handleevents(), lock the timer state before fetching the time for the
next event.  A concurrent callout_cc_add() call might be changing the
next event time, and the race can cause handleevents() to program an
out-of-date time, causing the callout to run later (by an unbounded
period, up to the idle hardclock period of 1s) than requested.

In cpu_idleclock(), call getnextcpuevent() with the timer state mutex
held, for similar reasons.  In particular, cpu_idleclock() runs with
interrupts enabled, so an untimely timer interrupt can result in a stale
next event time being programmed.  Further, an interrupt can cause
cpu_idleclock() to use a stale value for "now".

In cpu_activeclock(), disable interrupts before loading "now", so as to
avoid going backwards in time when calling handleevents().  It's ok to
leave interrupts enabled when checking "state->idle", since the race at
worst will cause handleevents() to be called unnecessarily.  But use an
atomic load to indicate that the test is racy.

PR:		264867
Reviewed by:	mav, jhb, kib
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit a889a65ba3)
2022-07-25 09:45:51 -04:00
Mark Johnston
9cdb0ee85d callout: Simplify the inner loop in callout_process() a bit
- Use LIST_FOREACH_SAFE.
- Simplify control flow.

No functional change intended.

Sponsored by:	The FreeBSD Foundation

(cherry picked from commit 46eab86035)
2022-07-25 09:45:37 -04:00
Mark Johnston
68a573cc5d callout: Remove a redundant parameter to callout_cc_add()
The passed cpuid is always equal to the one stored in the callout
structure.  No functional change intended.

Sponsored by:	The FreeBSD Foundation

(cherry picked from commit aac7c7ac54)
2022-07-25 09:45:01 -04:00
Mark Johnston
d529f396b7 vm_fault: Fix some nits in vm_fault_copy_entry()
- Correct the description (vm_fault_copy_entry() does not create a
  shadow object).
- Move some initialization and assertions out of the scope of the object
  locks, when doing so makes sense.
- Merge a pair of conditional blocks.
- Use __unused when appropriate.

No functional change intended.

Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit b57be759d0)
2022-07-25 09:44:45 -04:00
Mark Johnston
adc4dcada3 uma: Use a taskqueue to execute uma_timeout()
uma_timeout() has several responsibilities; it visits every UMA zone and
as of recently will drain underutilized caches, so is rather expensive
(>1ms in some cases).  Currently it is executed by softclock threads
and so will preempt most other CPU activity.  None of this work requires
a high scheduling priority, though, so defer it to a taskqueue so as to
avoid stalling higher-priority work.

Reviewed by:	rlibby, alc, mav, kib
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit 93cd28ea82)
2022-07-25 09:43:44 -04:00
Rick Macklem
d0ab875c5f nfscl: Add a cred argument to nfscl_reqstart()
To deal with broken session slots caused by the use of the
"soft" and/or "intr" mount options, nfsv4_sequencelookup()
will be modified to track the potentially broken session
slots.  Then, when all session slots are potentially
broken, do a DeleteSession operation, so that the NFSv4
server will reply NFSERR_BADSESSION to uses of the session.
These changes will be done in future commits.  However,
to do the DeleteSession RPC, a "cred" argument is needed
for nfscl_reqstart().  This patch adds this argument,
which is unused at this time.  If the argument is NULL,
it indicates that DeleteSession should not be done
(usually because the RPC does not use sessions).

This patch should not cause any semantics change.

PR: 260011
MFC after:	2 weeks

(cherry picked from commit 326bcf9394)
2022-07-24 12:41:57 -07:00
Alan Somers
b3c8ab9ff9 ses: don't panic if disk elements have really weird descriptors
SES allows element descriptors to contain characters like spaces and
quotes that devfs does not allow to appear in device aliases.  Since SES
element descriptors are outside of the kernel's control, we should
gracefully handle a failure to create a device physical path alias.

PR:		264513
Reported by:	Yuri <yuri@aetern.org>
Reviewed by:	imp, mav
Sponsored by:	Axcient

(cherry picked from commit 5f438dd3ac)
2022-07-24 09:41:18 -06:00
Dimitry Andric
fa872a4bf7 Adjust iface_khandler_register() definition to avoid clang 15 warning
With clang 15, the following -Werror warning is produced:

    sys/netpfil/ipfw/ip_fw_iface.c:128:24: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    iface_khandler_register()
                           ^
                            void

This is because iface_khandler_register() is declared with a (void)
argument list, but defined with an empty argument list. Make the
definition match the declaration.

MFC after:	3 days

(cherry picked from commit edf1e1f78d)
2022-07-24 13:00:10 +02:00
Dimitry Andric
ed4334af24 Fix unused variable warning in fwohci.c
With clang 15, the following -Werror warning is produced:

    sys/dev/firewire/fwohci.c:2762:23: error: variable 'pcnt' set but not used [-Werror,-Wunused-but-set-variable]
            int len, plen, hlen, pcnt, offset;
                                 ^

The 'pcnt' variable is eventually used only in an #if 0'd block,
obviously meant for debugging. Ensure that 'pcnt' is only declared and
used when COUNT_PACKETS is defined, so the debugging can be easily
turned on later, if desired.

MFC after:	3 days

(cherry picked from commit d7e0d962f3)
2022-07-24 13:00:10 +02:00
Dimitry Andric
f931f0d642 Fix unused variable warning in if_re_netmap.h
With clang 15, the following -Werror warning is produced:

    sys/dev/netmap/if_re_netmap.h:179:8: error: variable 'n' set but not used [-Werror,-Wunused-but-set-variable]
            u_int n;
                  ^

The 'n' variable appears to have been a debugging aid that has never
been used for anything, so remove it.

MFC after:	3 days

(cherry picked from commit 8bfedf5852)
2022-07-24 13:00:10 +02:00
Dimitry Andric
38fb2140ab Adjust ipfw_iface_{init,destroy}() definitions to avoid clang 15 warning
With clang 15, the following -Werror warnings are produced:

    sys/netpfil/ipfw/ip_fw_iface.c:206:16: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_iface_init()
                   ^
                    void
    sys/netpfil/ipfw/ip_fw_iface.c:219:19: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_iface_destroy()
                      ^
                       void

This is because ipfw_iface_init() and ipfw_iface_destroy() are declared
with (void) argument lists, but defined with empty argument lists. Make
the definitions match the declarations.

MFC after:	3 days

(cherry picked from commit 1eea6b9097)
2022-07-24 13:00:09 +02:00
Dimitry Andric
668beb3273 Fix unused variable warning in iflib.c
With clang 15, the following -Werror warning is produced:

    sys/net/iflib.c:993:8: error: variable 'n' set but not used [-Werror,-Wunused-but-set-variable]
            u_int n;
                  ^

The 'n' variable appears to have been a debugging aid that has never
been used for anything, so remove it.

MFC after:	3 days

(cherry picked from commit 0294e95da4)
2022-07-24 13:00:09 +02:00
Dimitry Andric
6cc991e810 Fix unused variable warning in if_lagg.c
With clang 15, the following -Werror warning is produced:

    sys/net/if_lagg.c:2413:6: error: variable 'active_ports' set but not used [-Werror,-Wunused-but-set-variable]
            int active_ports = 0;
                ^

The 'active_ports' variable appears to have been a debugging aid that
has never been used for anything (ref https://reviews.freebsd.org/D549),
so remove it.

MFC after:	3 days

(cherry picked from commit fa267a329f)
2022-07-24 13:00:09 +02:00
Dimitry Andric
e09ac99afb Adjust ipfw_{init,destroy}_*() definitions to avoid clang 15 warning
With clang 15, the following -Werror warnings are produced:

    sys/netpfil/ipfw/ip_fw_sockopt.c:187:19: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_init_counters()
                      ^
                       void
    sys/netpfil/ipfw/ip_fw_sockopt.c:196:22: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_destroy_counters()
                         ^
                          void
    sys/netpfil/ipfw/ip_fw_sockopt.c:3241:23: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_init_obj_rewriter()
                          ^
                           void
    sys/netpfil/ipfw/ip_fw_sockopt.c:3249:26: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_destroy_obj_rewriter()
                             ^
                              void

This is because ipfw_init_counters(), ipfw_destroy_counters(),
ipfw_init_obj_rewriter(), and ipfw_destroy_obj_rewriter() are declared
with (void) argument lists, but defined with empty argument lists. Make
the definitions match the declarations.

MFC after:	3 days

(cherry picked from commit 62030bb853)
2022-07-24 13:00:09 +02:00
Dimitry Andric
c28450f42a Adjust iface_khandler_deregister() definition to avoid clang 15 warning
With clang 15, the following -Werror warning is produced:

    sys/netpfil/ipfw/ip_fw_iface.c:159:26: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    iface_khandler_deregister()
                             ^
                              void

This is because iface_khandler_deregister() is declared with a (void)
argument list, but defined with an empty argument list. Make the
definition match the declaration.

MFC after:	3 days

(cherry picked from commit 4100dc46c7)
2022-07-24 13:00:08 +02:00
Dimitry Andric
249cb0b4c3 Adjust pmc_thread_descriptor_pool_drain() definition to avoid clang 15 warning
With clang 15, the following -Werror warning is produced:

    sys/dev/hwpmc/hwpmc_mod.c:2462:33: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    pmc_thread_descriptor_pool_drain()
                                    ^
                                     void

This is because pmc_thread_descriptor_pool_drain() is declared with a
(void) argument list, but defined with an empty argument list. Make the
definition match the declaration.

MFC after:	3 days

(cherry picked from commit 555d2c9394)
2022-07-24 13:00:08 +02:00
Dimitry Andric
ff90edf507 Adjust fbt_unload() definition to avoid clang 15 warning
With clang 15, the following -Werror warning is produced:

    sys/cddl/dev/fbt/fbt.c:1273:11: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    fbt_unload()
              ^
               void

This is because fbt_unload() is declared with a (void) argument list,
but defined with an empty argument list. Make the definition match the
declaration.

MFC after:	3 days

(cherry picked from commit 6339314c73)
2022-07-24 13:00:08 +02:00
Dimitry Andric
ad86a79043 Adjust pcm_md_initialize() definition to avoid clang 15 warning
With clang 15, the following -Werror warning is produced:

    sys/dev/hwpmc/hwpmc_x86.c:245:18: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    pcm_md_initialize()
                     ^
                      void

This is because pcm_md_initialize() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit dc0cde7a21)
2022-07-24 13:00:08 +02:00
Dimitry Andric
5e5cf7e2aa Adjust ipfw_{init,destroy}_sopt_handler() definitions to avoid clang 15 warning
With clang 15, the following -Werror warning are produced:

    sys/netpfil/ipfw/ip_fw_sockopt.c:3477:23: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_init_sopt_handler()
                          ^
                           void
    sys/netpfil/ipfw/ip_fw_sockopt.c:3485:26: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    ipfw_destroy_sopt_handler()
                             ^
                              void

This is because ipfw_init_sopt_handler() and ipfw_destroy_sopt_handler()
are declared with (void) argument lists, but defined with empty argument
lists. Make the definitions match the declarations.

MFC after:	3 days

(cherry picked from commit d62830c5e4)
2022-07-24 13:00:08 +02:00
Dimitry Andric
770520da58 Fix unused variable warning in ocs_cam.c
With clang 15, the following -Werror warning is produced:

    sys/dev/ocs_fc/ocs_cam.c:2556:11: error: variable 'count' set but not used [-Werror,-Wunused-but-set-variable]
            uint32_t        count;
                            ^

The 'count' variable seems to be a left-over from some debugging code
that no longer exists, and can be removed without any functional change.

MFC after:	3 days

(cherry picked from commit 8d9e292846)
2022-07-24 13:00:07 +02:00
Dimitry Andric
e2fae920c5 Fix unused variable warnings in hwpmc_mod.c
With clang 15, the following -Werror warnings are produced:

    sys/dev/hwpmc/hwpmc_mod.c:4805:6: error: variable 'nfree' set but not used [-Werror,-Wunused-but-set-variable]
            int nfree;
                ^
    sys/dev/hwpmc/hwpmc_mod.c:4804:6: error: variable 'ncallchains' set but not used [-Werror,-Wunused-but-set-variable]
            int ncallchains;
                ^

The 'nfree' and 'ncallchains' variables were used in KASSERTs, but these
were removed due to refactoring in d9f1b8dbf2. Remove the variables
since they no longer serve any purpose.

MFC after:      3 days

(cherry picked from commit 38a9b8a00c)
2022-07-24 13:00:07 +02:00
Dimitry Andric
8b5b4fc7ca Adjust tdsaContext_t::NvmdResponseSet declaration to avoid clang 15 warning
With clang 15, the following -Werror warnings are produced:

    In file included from sys/dev/pms/freebsd/driver/ini/src/agtiapi.c:70:
    sys/dev/pms/RefTisa/tisa/sassata/common/tdsatypes.h:346:13: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
      volatile  NvmdResponseSet;
      ~~~~~~~~  ^
      int

The NvmdResponseSet member is effectively only used as a boolean in the
pms(4) driver, so it could be a single bit. But to avoid changing the
semantics at all in this unmaintained driver, simply declare it as a
volatile int.

MFC after:	3 days

(cherry picked from commit 95204d7a63)
2022-07-24 13:00:07 +02:00
Dimitry Andric
8d98688e8b Adjust pcmlog_{initialize,shutdown}() definitions to avoid clang 15 warning
With clang 15, the following -Werror warnings are produced:

    sys/dev/hwpmc/hwpmc_logging.c:1228:18: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    pmclog_initialize()
                     ^
                      void
    sys/dev/hwpmc/hwpmc_logging.c:1277:16: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    pmclog_shutdown()
                   ^
                    void

This is because pcmlog_{initialize,shutdown}() are declared with (void)
argument lists, but defined with empty argument lists. Make the
definitions match the declarations.

MFC after:	3 days

(cherry picked from commit ba95c55602)
2022-07-24 13:00:07 +02:00
Dimitry Andric
56b06ff9f5 Adjust vt_mouse_paste() definition to avoid clang 15 warning
With clang 15, the following -Werror warning is produced:

    sys/dev/vt/vt_core.c:2129:15: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    vt_mouse_paste()
                  ^
                   void

This is because vt_mouse_paste() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit b77a5e5f58)
2022-07-24 13:00:06 +02:00
Dimitry Andric
a74dd99369 Fix unused variable warning in ipsec_mbuf.c
With clang 15, the following -Werror warning is produced:

    sys/netipsec/ipsec_mbuf.c:93:24: error: variable 'alloc' set but not used [-Werror,-Wunused-but-set-variable]
                    int todo, len, done, alloc;
                                         ^

The 'alloc' variable appears to have been a debugging aid that has never
been used for anything, so remove it.

MFC after:	3 days

(cherry picked from commit df5d2841d5)
2022-07-24 13:00:06 +02:00
Rick Macklem
f115e0e9e3 nfscl: Fix setting of nfsess_defunct for nfscl_hasexpired()
Commit a7bb120f8b added a printf for the case where recovery
has not marked the session defunct by setting nfsess_defunct
to 1.  It turns out that nfscl_hasexpired() calls
nfsrpc_setclient() directly, without setting nfsess_defunct.
This patch replaces the printf with code that sets
nfsess_defunct to 1 to handle this case.

If SIGTERM is issued to a process when it is doing I/O on
an "intr" mount, the NFSv4 server may reply NFSERR_BADSTATEID,
due to the Open being prematurely closed.
This can result in a call to nfscl_hasexpired() to do a
recovery.

This would explain at least one hang described in the PR.

PR: 260011
MFC after:	2 weeks

(cherry picked from commit be7b87de16)
2022-07-23 13:38:21 -07:00
Dimitry Andric
e21693924a Suppress unused variable warning in if_mwl.c
With clang 15, the following -Werror warning is produced:

    sys/dev/mwl/if_mwl.c:3445:8: error: variable 'ix' set but not used [-Werror,-Wunused-but-set-variable]
            u_int ix;
                  ^

Here, 'ix' is a variable that is only used when debugging. Mark the
variable as potentially unused, to suppress the warning.

MFC after:	3 days

(cherry picked from commit 52c80d495a)
2022-07-23 10:56:46 +02:00
Dimitry Andric
6204a90c0b Adjust nvd_{load,unload}() definitions to avoid clang 15 warnings
With clang 15, the following -Werror warnings are produced:

    sys/dev/nvd/nvd.c:150:9: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    nvd_load()
            ^
             void
    sys/dev/nvd/nvd.c:166:11: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    nvd_unload()
              ^
               void

This is because nvd_load() and nvd_unload() are declared with a (void)
argument list, but defined with an empty argument list. Make the
definitions match the declarations.

MFC after:	3 days

(cherry picked from commit c46c9b3f5f)
2022-07-23 10:56:46 +02:00
Dimitry Andric
9dcb9a1e7b Fix unused variable warning in if_alc.c
With clang 15, the following -Werror warning is produced:

    sys/dev/alc/if_alc.c:3441:6: error: variable 'prog' set but not used [-Werror,-Wunused-but-set-variable]
            int prog;
                ^

The 'prog' variable seems to be a left-over from some debugging code
that no longer exists, and can be removed without any functional change.

MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D35831

(cherry picked from commit 64741244fc)
2022-07-23 10:56:46 +02:00
Dimitry Andric
9e9459ac32 Suppress unused variable warning in ip_dummynet.c
With clang 15, the following -Werror warning is produced:

    sys/netpfil/ipfw/ip_dummynet.c:802:6: error: variable 'n' set but not used [-Werror,-Wunused-but-set-variable]
            int n = 0; /* only for stats */
                ^

Here, 'n' is a variable that is only used when debugging. Mark the
variable as potentially unused, to suppress the warning.

MFC after:	3 days

(cherry picked from commit 5c329f0a4d)
2022-07-23 10:56:46 +02:00
Dimitry Andric
f64d11ddb6 Fix unused variable warning in acpica's nsaccess.c
With clang 15, the following -Werror warning is produced:

    sys/contrib/dev/acpica/components/namespace/nsaccess.c:452:29: error: variable 'NumCarats' set but not used [-Werror,-Wunused-but-set-variable]
        UINT32                  NumCarats;
                                ^

Here, 'NumCarats' is a variable that is only used when debugging. Since
acpica is contributed code, suppress the warning with a compile flag.

MFC after:	3 days

(cherry picked from commit 3c9a0112ba)
2022-07-23 10:56:45 +02:00
Dimitry Andric
c3361a4b90 Suppress unused variable warning in if_malo.c
With clang 15, the following -Werror warning is produced:

    sys/dev/malo/if_malo.c:1573:8: error: variable 'ix' set but not used [-Werror,-Wunused-but-set-variable]
            u_int ix;
                  ^

Here, 'ix' is a variable that is only used when MALO_DEBUG is defined.
Mark the variable as potentially unused, to suppress the warning.

MFC after:	3 days

(cherry picked from commit 2186340143)
2022-07-23 10:56:45 +02:00
Dimitry Andric
864ff7a6e5 Suppress unused variable warning in mfi.c
With clang 15, the following -Werror warnings are produced:

    sys/dev/mfi/mfi.c:3698:6: error: variable 'timedout' set but not used [-Werror,-Wunused-but-set-variable]
            int timedout;
                ^
    sys/dev/mfi/mfi.c:3742:6: error: variable 'timedout' set but not used [-Werror,-Wunused-but-set-variable]
            int timedout = 0;
                ^

Here, 'timedout' are variables that are only used when debugging,
requiring #if 0 statements to be modified. Mark the variables as
potentially unused, to suppress the warnings.

MFC after:	3 days

(cherry picked from commit 3dbe05f61b)
2022-07-23 10:56:45 +02:00
Dimitry Andric
00e2af8cd7 Adjust prototype_unload() definition to avoid clang 15 warning
With clang 15, the following -Werror warnings is produced:

    sys/cddl/dev/prototype.c:99:17: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    prototype_unload()
                    ^
                     void

This is because prototype_unload() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit 9a97978883)
2022-07-23 10:56:45 +02:00
Dimitry Andric
1538007bb5 Adjust t4_tracer_mod{load,unload}() definitions to avoid clang 15 warnings
With clang 15, the following -Werror warnings are produced:

    sys/dev/cxgbe/t4_tracer.c:234:18: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    t4_tracer_modload()
                     ^
                      void
    sys/dev/cxgbe/t4_tracer.c:243:20: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    t4_tracer_modunload()
                       ^
                        void

This is because t4_tracer_modload() and t4_tracer_modunload() are
declared with a (void) argument list, but defined with an empty argument
list. Make the definitions match the declarations.

MFC after:	3 days

(cherry picked from commit 54e5efb264)
2022-07-23 10:56:44 +02:00
Dimitry Andric
08c55de237 Adjust db_flush_line() definition to avoid clang 15 warning
With clang 15, the following -Werror warnings is produced:

    sys/ddb/db_lex.c:94:14: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    db_flush_line()
                 ^
                  void

This is because db_flush_line() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit 939cb349b2)
2022-07-23 10:56:44 +02:00
Dimitry Andric
8281969c16 Adjust profile_unload() definition to avoid clang 15 warning
With clang 15, the following -Werror warnings is produced:

    sys/cddl/dev/profile/profile.c:640:15: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    profile_unload()
                  ^
                   void

This is because profile_unload() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit 2d03b58f9a)
2022-07-23 10:56:44 +02:00
Dimitry Andric
c1d40a2daf Adjust dtnfsclient_unload() definition to avoid clang 15 warning
With clang 15, the following -Werror warnings is produced:

    sys/fs/nfsclient/nfs_clkdtrace.c:544:19: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    dtnfsclient_unload()
                      ^
                       void

This is because dtnfsclient_unload() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit 276099434d)
2022-07-23 10:56:43 +02:00
Dimitry Andric
d59834c8c6 Adjust dtrace_getf_barrier() definition to avoid clang 15 warning
With clang 15, the following -Werror warnings is produced:

    sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c:17019:20: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
    dtrace_getf_barrier()
		       ^
			void

This is because dtrace_getf_barrier() is declared with a (void) argument
list, but defined with an empty argument list. Make the definition match
the declaration.

MFC after:	3 days

(cherry picked from commit bd0e3cc2e7)
2022-07-23 10:56:43 +02:00