- Sep 22, 2021
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Gokul Sivakumar authored
The route table that is dumped when the xdp_router_ipv4 process is launched has the "Gateway" field in non-readable network byte order format, also the alignment is off when printing the table. Destination Gateway Genmask Metric Iface 0.0.0.0 196a8c0 0 0 enp7s0 0.0.0.0 196a8c0 0 0 wlp6s0 169.254.0.0 196a8c0 16 0 enp7s0 172.17.0.0 0 16 0 docker0 192.168.150.0 0 24 0 enp7s0 192.168.150.0 0 24 0 wlp6s0 Fix this by converting the "Gateway" field from network byte order Hex into dotted decimal notation IPv4 format and "Genmask" from CIDR notation into dotted decimal notation IPv4 format. Also fix the aligntment of the fields in the route table. Destination Gateway Genmask Metric Iface 0.0.0.0 192.168.150.1 0.0.0.0 0 enp7s0 0.0.0.0 192.168.150.1 0.0.0.0 0 wlp6s0 169.254.0.0 192.168.150.1 255.255.0.0 0 enp7s0 172.17.0.0 0.0.0.0 255.255.0.0 0 docker0 192.168.150.0 0.0.0.0 255.255.255.0 0 enp7s0 192.168.150.0 0.0.0.0 255.255.255.0 0 wlp6s0 Signed-off-by:
Gokul Sivakumar <gokulkumar792@gmail.com> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210919080305.173588-1-gokulkumar792@gmail.com
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- Sep 21, 2021
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Grant Seltzer authored
This adds comments above functions in libbpf.h which document their uses. These comments are of a format that doxygen and sphinx can pick up and render. These are rendered by libbpf.readthedocs.org These doc comments are for: - bpf_object__find_map_by_name() - bpf_map__fd() - bpf_map__is_internal() - libbpf_get_error() - libbpf_num_possible_cpus() Signed-off-by:
Grant Seltzer <grantseltzer@gmail.com> Signed-off-by:
Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210918031457.36204-1-grantseltzer@gmail.com
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- Sep 18, 2021
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Alexei Starovoitov authored
Dave Marchevsky says: ==================== This series introduces a new helper, bpf_trace_vprintk, which functions like bpf_trace_printk but supports > 3 arguments via a pseudo-vararg u64 array. The bpf_printk libbpf convenience macro is modified to use bpf_trace_vprintk when > 3 varargs are passed, otherwise the previous behavior - using bpf_trace_printk - is retained. Helper functions and macros added during the implementation of bpf_seq_printf and bpf_snprintf do most of the heavy lifting for bpf_trace_vprintk. There's no novel format string wrangling here. Usecase here is straightforward: Giving BPF program writers a more powerful printk will ease development of BPF programs, particularly during debugging and testing, where printk tends to be used. This feature was proposed by Andrii in libbpf mirror's issue tracker [1]. [1] https://github.com/libbpf/libbpf/issues/315 v5 -> v6: Rebase to pick up newly-added helper v4 -> v5: * patch 8: added test for "%pS" format string w/ NULL fmt arg [Daniel] * patch 8: dmesg -> /sys/kernel/debug/tracing/trace_pipe in commit message [Andrii] * patch 9: squash into patch 8, remove the added test in favor of just bpf_printk'ing in patch 8's test [Andrii] * migrate comment to /* */ * header comments improved$ * uapi/linux/bpf.h: u64 -> long return type [Daniel] * uapi/linux/bpf.h: function description explains benefit of bpf_trace_vprintk over bpf_trace_printk [Daniel] * uapi/linux/bpf.h: added patch explaining that data_len should be a multiple of 8 in bpf_seq_printf, bpf_snprintf descriptions [Daniel] * tools/lib/bpf/bpf_helpers.h: move comment to new bpf_printk [Andrii] * rebase v3 -> v4: * Add patch 2, which migrates reference_tracking prog_test away from bpf_program__load. Could be placed a bit later in the series, but wanted to keep the actual vprintk-related patches contiguous * Add patch 9, which adds a program w/ 0 fmt arg bpf_printk to vprintk test * bpf_printk convenience macro isn't multiline anymore, so simplify [Andrii] * Add some comments to ___bpf_pick_printk to make it more obvious when implementation switches from printk to vprintk [Andrii] * BPF_PRINTK_FMT_TYPE -> BPF_PRINTK_FMT_MOD for 'static const' fmt string in printk wrapper macro [Andrii] * checkpatch.pl doesn't like this, says "Macros with complex values should be enclosed in parentheses". Strange that it didn't have similar complaints about v3's BPF_PRINTK_FMT_TYPE. Regardless, IMO the complaint is not highlighting a real issue in the case of this macro. * Fix alignment of __bpf_vprintk and __bpf_pick_printk [Andrii] * rebase v2 -> v3: * Clean up patch 3's commit message [Alexei] * Add patch 4, which modifies __bpf_printk to use 'static const char' to store fmt string with fallback for older kernels [Andrii] * rebase v1 -> v2: * Naming conversation seems to have gone in favor of keeping bpf_trace_vprintk, names are unchanged * Patch 3 now modifies bpf_printk convenience macro to choose between __bpf_printk and __bpf_vprintk 'implementation' macros based on arg count. __bpf_vprintk is a renaming of bpf_vprintk convenience macro from v1, __bpf_printk is the existing bpf_printk implementation. This patch could use some scrutiny as I think current implementation may regress developer experience in a specific case, turning a compile-time error into a load-time error. Unclear to me how common the case is, or whether the macro magic I chose is ideal. * char ___fmt[] to static const char ___fmt[] change was not done, wanted to leave __bpf_printk 'implementation' macro unchanged for v2 to ease discussion of above point * Removed __always_inline from __set_printk_clr_event [Andrii] * Simplified bpf_trace_printk docstring to refer to other functions instead of copy/pasting and avoid specifying 12 vararg limit [Andrii] * Migrated trace_printk selftest to use ASSERT_ instead of CHECK * Adds new patch 5, previous patch 5 is now 6 * Migrated trace_vprintk selftest to use ASSERT_ instead of CHECK, open_and_load instead of separate open, load [Andrii] * Patch 2's commit message now correctly mentions trace_pipe instead of dmesg [Andrii] ==================== Signed-off-by:
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Dave Marchevsky authored
Since the data_len in these two functions is a byte len of the preceding u64 *data array, it must always be a multiple of 8. If this isn't the case both helpers error out, so let's make the requirement explicit so users don't need to infer it. Signed-off-by:
Dave Marchevsky <davemarchevsky@fb.com> Signed-off-by:
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Dave Marchevsky authored
This commit adds a test prog for vprintk which confirms that: * bpf_trace_vprintk is writing to /sys/kernel/debug/tracing/trace_pipe * __bpf_vprintk macro works as expected * >3 args are printed * bpf_printk w/ 0 format args compiles * bpf_trace_vprintk call w/ a fmt specifier but NULL fmt data fails Approach and code are borrowed from trace_printk test. Signed-off-by:
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Dave Marchevsky authored
Guidance for new tests is to use ASSERT macros instead of CHECK. Since trace_vprintk test will borrow heavily from trace_printk's, migrate its CHECKs so it remains obvious that the two are closely related. Signed-off-by:
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Dave Marchevsky authored
Since commit 368cb0e7 ("bpftool: Make probes which emit dmesg warnings optional"), some helpers aren't probed by bpftool unless `full` arg is added to `bpftool feature probe`. bpf_trace_vprintk can emit dmesg warnings when probed, so include it. Signed-off-by:
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Dave Marchevsky authored
The __bpf_printk convenience macro was using a 'char' fmt string holder as it predates support for globals in libbpf. Move to more efficient 'static const char', but provide a fallback to the old way via BPF_NO_GLOBAL_DATA so users on old kernels can still use the macro. Signed-off-by:
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Dave Marchevsky authored
Instead of being a thin wrapper which calls into bpf_trace_printk, libbpf's bpf_printk convenience macro now chooses between bpf_trace_printk and bpf_trace_vprintk. If the arg count (excluding format string) is >3, use bpf_trace_vprintk, otherwise use the older helper. The motivation behind this added complexity - instead of migrating entirely to bpf_trace_vprintk - is to maintain good developer experience for users compiling against new libbpf but running on older kernels. Users who are passing <=3 args to bpf_printk will see no change in their bytecode. __bpf_vprintk functions similarly to BPF_SEQ_PRINTF and BPF_SNPRINTF macros elsewhere in the file - it allows use of bpf_trace_vprintk without manual conversion of varargs to u64 array. Previous implementation of bpf_printk macro is moved to __bpf_printk for use by the new implementation. This does change behavior of bpf_printk calls with >3 args in the "new libbpf, old kernels" scenario. Before this patch, attempting to use 4 args to bpf_printk results in a compile-time error. After this patch, using bpf_printk with 4 args results in a trace_vprintk helper call being emitted and a load-time failure on older kernels. Signed-off-by:
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Dave Marchevsky authored
This helper is meant to be "bpf_trace_printk, but with proper vararg support". Follow bpf_snprintf's example and take a u64 pseudo-vararg array. Write to /sys/kernel/debug/tracing/trace_pipe using the same mechanism as bpf_trace_printk. The functionality of this helper was requested in the libbpf issue tracker [0]. [0] Closes: https://github.com/libbpf/libbpf/issues/315 Signed-off-by:
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Dave Marchevsky authored
bpf_program__load is not supposed to be used directly. Replace it with bpf_object__ APIs for the reference_tracking prog_test, which is the last offender in bpf selftests. Some additional complexity is added for this test, namely the use of one bpf_object to iterate through progs, while a second bpf_object is created and opened/closed to test actual loading of progs. This is because the test was doing bpf_program__load then __unload to test loading of individual progs and same semantics with bpf_object__load/__unload result in failure to load an __unload-ed obj. Signed-off-by:
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Dave Marchevsky authored
MAX_SNPRINTF_VARARGS and MAX_SEQ_PRINTF_VARARGS are used by bpf helpers bpf_snprintf and bpf_seq_printf to limit their varargs. Both call into bpf_bprintf_prepare for print formatting logic and have convenience macros in libbpf (BPF_SNPRINTF, BPF_SEQ_PRINTF) which use the same helper macros to convert varargs to a byte array. Changing shared functionality to support more varargs for either bpf helper would affect the other as well, so let's combine the _VARARGS macros to make this more obvious. Signed-off-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski authored
Alexei Starovoitov says: ==================== pull-request: bpf-next 2021-09-17 We've added 63 non-merge commits during the last 12 day(s) which contain a total of 65 files changed, 2653 insertions(+), 751 deletions(-). The main changes are: 1) Streamline internal BPF program sections handling and bpf_program__set_attach_target() in libbpf, from Andrii. 2) Add support for new btf kind BTF_KIND_TAG, from Yonghong. 3) Introduce bpf_get_branch_snapshot() to capture LBR, from Song. 4) IMUL optimization for x86-64 JIT, from Jie. 5) xsk selftest improvements, from Magnus. 6) Introduce legacy kprobe events support in libbpf, from Rafael. 7) Access hw timestamp through BPF's __sk_buff, from Vadim. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (63 commits) selftests/bpf: Fix a few compiler warnings libbpf: Constify all high-level program attach APIs libbpf: Schedule open_opts.attach_prog_fd deprecation since v0.7 selftests/bpf: Switch fexit_bpf2bpf selftest to set_attach_target() API libbpf: Allow skipping attach_func_name in bpf_program__set_attach_target() libbpf: Deprecated bpf_object_open_opts.relaxed_core_relocs selftests/bpf: Stop using relaxed_core_relocs which has no effect libbpf: Use pre-setup sec_def in libbpf_find_attach_btf_id() bpf: Update bpf_get_smp_processor_id() documentation libbpf: Add sphinx code documentation comments selftests/bpf: Skip btf_tag test if btf_tag attribute not supported docs/bpf: Add documentation for BTF_KIND_TAG selftests/bpf: Add a test with a bpf program with btf_tag attributes selftests/bpf: Test BTF_KIND_TAG for deduplication selftests/bpf: Add BTF_KIND_TAG unit tests selftests/bpf: Change NAME_NTH/IS_NAME_NTH for BTF_KIND_TAG format selftests/bpf: Test libbpf API function btf__add_tag() bpftool: Add support for BTF_KIND_TAG libbpf: Add support for BTF_KIND_TAG libbpf: Rename btf_{hash,equal}_int to btf_{hash,equal}_int_tag ... ==================== Link: https://lore.kernel.org/r/20210917173738.3397064-1-ast@kernel.org Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Florian Fainelli authored
72165 is a 16nm process SoC with a 10/100 integrated Ethernet PHY, create a new macro and set of functions for this different process type. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20210917181551.2836036-1-f.fainelli@gmail.com Signed-off-by:
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Nathan Chancellor authored
Clang warns twice: drivers/ptp/ptp_ocp.c:2065:16: error: operator '?:' has lower precedence than '&'; '&' will be evaluated first [-Werror,-Wbitwise-conditional-parentheses] on & map ? " ON" : "OFF", src); ~~~~~~~~ ^ drivers/ptp/ptp_ocp.c:2065:16: note: place parentheses around the '&' expression to silence this warning on & map ? " ON" : "OFF", src); ^ ( ) drivers/ptp/ptp_ocp.c:2065:16: note: place parentheses around the '?:' expression to evaluate it first on & map ? " ON" : "OFF", src); ^ on and map are both booleans so this should be a logical AND, which clears up the operator precedence issue. Fixes: a62a56d0 ("ptp: ocp: Enable 4th timestamper / PPS generator") Link: https://github.com/ClangBuiltLinux/linux/issues/1457 Suggested-by:Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by:
Nathan Chancellor <nathan@kernel.org> Acked-by:
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Yonghong Song authored
With clang building selftests/bpf, I hit a few warnings like below: .../bpf_iter.c:592:48: warning: variable 'expected_key_c' set but not used [-Wunused-but-set-variable] __u32 expected_key_a = 0, expected_key_b = 0, expected_key_c = 0; ^ .../bpf_iter.c:688:48: warning: variable 'expected_key_c' set but not used [-Wunused-but-set-variable] __u32 expected_key_a = 0, expected_key_b = 0, expected_key_c = 0; ^ .../tc_redirect.c:657:6: warning: variable 'target_fd' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (!ASSERT_OK_PTR(nstoken, "setns " NS_FWD)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .../tc_redirect.c:743:6: note: uninitialized use occurs here if (target_fd >= 0) ^~~~~~~~~ Removing unused variables and initializing the previously-uninitialized variable to ensure these warnings are gone. Signed-off-by:Yonghong Song <yhs@fb.com> Signed-off-by:
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Alexei Starovoitov authored
Andrii Nakryiko says: ==================== This patch set deprecates bpf_object_open_opts.attach_prog_fd (in libbpf 0.7+) by extending bpf_program__set_attach_target() to support some more flexible scenarios. Existing fexit_bpf2bpf selftest is updated accordingly to not use deprecated APIs. While at it, also deprecate no-op relaxed_core_relocs option (they are always "relaxed"). Last patch also const-ifies all high-level libbpf attach APIs, as there is no reason for them to assume bpf_program/bpf_map modifications. Patch #1 also removes one more unneeded use of find_sec_def(), relying on prog->sec_def that's set during bpf_object__open() operation, simplifying upcoming refactoring a little bit more. All these changes are preparatory patches before SEC() handling refactoring that will come next. ==================== Signed-off-by: -
Andrii Nakryiko authored
Attach APIs shouldn't need to modify bpf_program/bpf_map structs, so change all struct bpf_program and struct bpf_map pointers to const pointers. This is completely backwards compatible with no functional change. Signed-off-by:
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Andrii Nakryiko authored
bpf_object_open_opts.attach_prog_fd makes a pretty strong assumption that bpf_object contains either only single freplace BPF program or all of BPF programs in BPF object are freplaces intended to replace different subprograms of the same target BPF program. This seems both a bit confusing, too assuming, and limiting. We've had bpf_program__set_attach_target() API which allows more fine-grained control over this, on a per-program level. As such, mark open_opts.attach_prog_fd as deprecated starting from v0.7, so that we have one more universal way of setting freplace targets. With previous change to allow NULL attach_func_name argument, and especially combined with BPF skeleton, arguable bpf_program__set_attach_target() is a more convenient and explicit API as well. Signed-off-by:
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Andrii Nakryiko authored
Switch fexit_bpf2bpf selftest to bpf_program__set_attach_target() instead of using bpf_object_open_opts.attach_prog_fd, which is going to be deprecated. These changes also demonstrate the new mode of set_attach_target() in which it allows NULL when the target is BPF program (attach_prog_fd != 0). Signed-off-by:
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Andrii Nakryiko authored
Allow to use bpf_program__set_attach_target to only set target attach program FD, while letting libbpf to use target attach function name from SEC() definition. This might be useful for some scenarios where bpf_object contains multiple related freplace BPF programs intended to replace different sub-programs in target BPF program. In such case all programs will have the same attach_prog_fd, but different attach_func_name. It's convenient to specify such target function names declaratively in SEC() definitions, but attach_prog_fd is a dynamic runtime setting. To simplify such scenario, allow bpf_program__set_attach_target() to delay BTF ID resolution till the BPF program load time by providing NULL attach_func_name. In that case the behavior will be similar to using bpf_object_open_opts.attach_prog_fd (which is marked deprecated since v0.7), but has the benefit of allowing more control by user in what is attached to what. Such setup allows having BPF programs attached to different target attach_prog_fd with target functions still declaratively recorded in BPF source code in SEC() definitions. Selftests changes in the next patch should make this more obvious. Signed-off-by:
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Andrii Nakryiko authored
It's relevant and hasn't been doing anything for a long while now. Deprecated it. Signed-off-by:
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Andrii Nakryiko authored
relaxed_core_relocs option hasn't had any effect for a while now, stop specifying it. Next patch marks it as deprecated. Signed-off-by:
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Andrii Nakryiko authored
Don't perform another search for sec_def inside libbpf_find_attach_btf_id(), as each recognized bpf_program already has prog->sec_def set. Also remove unnecessary NULL check for prog->sec_name, as it can never be NULL. Signed-off-by:
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- Sep 17, 2021
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Krzysztof Kozlowski authored
The MODULE_DEVICE_TABLE already creates proper alias for spi driver. Having another MODULE_ALIAS causes the alias to be duplicated. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Leon Romanovsky authored
Devlink core exported generously the functions calls that were used by netdevsim tests or not used at all. Delete such APIs with one exception - devlink_alloc_ns(). That function should be spared from deleting because it is a special form of devlink_alloc() needed for the netdevsim. Signed-off-by:
Leon Romanovsky <leonro@nvidia.com> Acked-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
Cai Huoqing <caihuoqing@baidu.com> Acked-by:
Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Signed-off-by:
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Colin Ian King authored
The variable blkaddr is being initialized with a value that is never read, it is being updated later on in a for-loop. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
In the case where the condition !is_rvu_otx2(rvu) is false variable val is not initialized and can contain a garbage value. Fix this by initializing val to zero and bit-wise or'ing in BIT_ULL(51) to val for the true condition case of !is_rvu_otx2(rvu). Addresses-Coverity: ("Uninitialized scalar variable") Fixes: 4b5a3ab1 ("octeontx2-af: Hardware configuration for inline IPsec") Signed-off-by: -
Hao Chen authored
After I turn on the CONFIG_LOCK_STAT=y, insmod e1000e.ko will report: [ 5.641579] e1000e: Unknown symbol mutex_lock (err -2) [ 90.775705] e1000e: Unknown symbol mutex_lock (err -2) [ 132.252339] e1000e: Unknown symbol mutex_lock (err -2) This problem fixed after include <linux/mutex.h>. Signed-off-by:
Hao Chen <chenhaoa@uniontech.com> Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Florian Fainelli authored
Enable the DAC early wake when then link operates at 10BaseT allows power savings in the hundreds of milli Watts by shutting down the transmitter. A number of errata have been issued for various Gigabit PHYs and the recommendation is to enable both the early and forced DAC wake to be on the safe side. This needs to be done dynamically based upon the link state, which is why a link_change_notify callback is utilized. Signed-off-by:
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Jakub Kicinski authored
Rafał Miłecki says: ==================== net: dsa: b53: Clean up CPU/IMP ports This has been tested on: 1. Luxul XBR-4500 with used CPU port 5 [ 8.361438] b53-srab-switch 18007000.ethernet-switch: found switch: BCM53012, rev 0 2. Netgear R8000 with used CPU port 8 [ 4.453858] b53-srab-switch 18007000.ethernet-switch: found switch: BCM53012, rev 5 ==================== Link: https://lore.kernel.org/r/20210916120354.20338-1-zajec5@gmail.com Signed-off-by:
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Rafał Miłecki authored
It's set but never used anymore. Signed-off-by:
Rafał Miłecki <rafal@milecki.pl> Reviewed-by:
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Rafał Miłecki authored
According to the Broadcom's reference driver flow control needs to be enabled for any CPU switch port (5, 7 or 8 - depending on which one is used). Current code makes it work only for the port 5. Use dsa_is_cpu_port() which solved that problem. Signed-off-by:
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Rafał Miłecki authored
On BCM5301x port 8 requires a fixed link when used. Years ago when b53 was an OpenWrt downstream driver (with configuration based on sometimes bugged NVRAM) there was a need for a fixup. In case of forcing fixed link for (incorrectly specified) port 5 the code had to actually setup port 8 link. For upstream b53 driver with setup based on DT there is no need for that workaround. In DT we have and require correct ports setup. Signed-off-by:
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Rafał Miłecki authored
Make "enabled_ports" bitfield contain all available switch ports including a CPU port. This way there is no need for fixup during initialization. For BCM53010, BCM53018 and BCM53019 include also other available ports. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski authored
No conflicts! Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Including fixes from bpf. Current release - regressions: - vhost_net: fix OoB on sendmsg() failure - mlx5: bridge, fix uninitialized variable usage - bnxt_en: fix error recovery regression Current release - new code bugs: - bpf, mm: fix lockdep warning triggered by stack_map_get_build_id_offset() Previous releases - regressions: - r6040: restore MDIO clock frequency after MAC reset - tcp: fix tp->undo_retrans accounting in tcp_sacktag_one() - dsa: flush switchdev workqueue before tearing down CPU/DSA ports Previous releases - always broken: - ptp: dp83640: don't define PAGE0, avoid compiler warning - igc: fix tunnel segmentation offloads - phylink: update SFP selected interface on advertising changes - stmmac: fix system hang caused by eee_ctrl_timer during suspend/resume - mlx5e: fix mutual exclusion between CQE compression and HW TS Misc: - bpf, cgroups: fix cgroup v2 fallback on v1/v2 mixed mode - sfc: fallback for lack of xdp tx queues - hns3: add option to turn off page pool feature" * tag 'net-5.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (67 commits) mlxbf_gige: clear valid_polarity upon open igc: fix tunnel offloading net/{mlx5|nfp|bnxt}: Remove unnecessary RTNL lock assert net: wan: wanxl: define CROSS_COMPILE_M68K selftests: nci: replace unsigned int with int net: dsa: flush switchdev workqueue before tearing down CPU/DSA ports Revert "net: phy: Uniform PHY driver access" net: dsa: destroy the phylink instance on any error in dsa_slave_phy_setup ptp: dp83640: don't define PAGE0 bnx2x: Fix enabling network interfaces without VFs Revert "Revert "ipv4: fix memory leaks in ip_cmsg_send() callers"" tcp: fix tp->undo_retrans accounting in tcp_sacktag_one() net-caif: avoid user-triggerable WARN_ON(1) bpf, selftests: Add test case for mixed cgroup v1/v2 bpf, selftests: Add cgroup v1 net_cls classid helpers bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode bpf: Add oversize check before call kvcalloc() net: hns3: fix the timing issue of VF clearing interrupt sources net: hns3: fix the exception when query imp info net: hns3: disable mac in flr process ...
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Guenter Roeck authored
tx timeout and slot time are currently specified in units of HZ. On Alpha, HZ is defined as 1024. When building alpha:allmodconfig, this results in the following error message. drivers/net/hamradio/6pack.c: In function 'sixpack_open': drivers/net/hamradio/6pack.c:71:41: error: unsigned conversion from 'int' to 'unsigned char' changes value from '256' to '0' In the 6PACK protocol, tx timeout is specified in units of 10 ms and transmitted over the wire: https://www.linux-ax25.org/wiki/6PACK Defining a value dependent on HZ doesn't really make sense, and presumably comes from the (very historical) situation where HZ was originally 100. Note that the SIXP_SLOTTIME use explicitly is about 10ms granularity: mod_timer(&sp->tx_t, jiffies + ((when + 1) * HZ) / 100); and the SIXP_TXDELAY walue is sent as a byte over the wire. Signed-off-by:Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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