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2021-10-10bootconfig: Rename xbc_destroy_all() to xbc_exit()Masami Hiramatsu1-4/+4
Avoid using this noisy name and use more calm one. This is just a name change. No functional change. Link: https://lkml.kernel.org/r/163187295918.2366983.5231840238429996027.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Add xbc_get_info() for the node informationMasami Hiramatsu1-0/+21
Add xbc_get_info() API which allows user to get the number of used xbc_nodes and the size of bootconfig data. This is also useful for checking the bootconfig is initialized or not. Link: https://lkml.kernel.org/r/163177340877.682366.4360676589783197627.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Allocate xbc_data inside xbc_init()Masami Hiramatsu1-12/+21
Allocate 'xbc_data' in the xbc_init() so that it does not need to care about the ownership of the copied data. Link: https://lkml.kernel.org/r/163177339986.682366.898762699429769117.stgit@devnote2 Suggested-by: Steven Rostedt <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-07bpf, tests: Add more LD_IMM64 testsJohan Almbladh1-3/+117
This patch adds new tests for the two-instruction LD_IMM64. The new tests verify the operation with immediate values of different byte patterns. Mainly intended to cover JITs that want to be clever when loading 64-bit constants. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-07kasan: Extend KASAN mode kernel parameterVincenzo Frascino1-1/+1
Architectures supported by KASAN_HW_TAGS can provide an asymmetric mode of execution. On an MTE enabled arm64 hw for example this can be identified with the asymmetric tagging mode of execution. In particular, when such a mode is present, the CPU triggers a fault on a tag mismatch during a load operation and asynchronously updates a register when a tag mismatch is detected during a store operation. Extend the KASAN HW execution mode kernel command line parameter to support asymmetric mode. Cc: Dmitry Vyukov <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Andrey Konovalov <[email protected]> Signed-off-by: Vincenzo Frascino <[email protected]> Reviewed-by: Catalin Marinas <[email protected]> Reviewed-by: Andrey Konovalov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2021-10-06bitfield: build kunit tests without structleak pluginArnd Bergmann1-1/+1
The structleak plugin causes the stack frame size to grow immensely: lib/bitfield_kunit.c: In function 'test_bitfields_constants': lib/bitfield_kunit.c:93:1: error: the frame size of 7440 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] Turn it off in this file. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Brendan Higgins <[email protected]> Reviewed-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-10-07Merge branch 'objtool/urgent'Peter Zijlstra7-11/+91
Fixup conflicts. # Conflicts: # tools/objtool/check.c
2021-10-04Merge 5.15-rc4 into driver-core-nextGreg Kroah-Hartman7-11/+91
We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-10-01Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski1-204/+5827
Daniel Borkmann says: ==================== bpf-next 2021-10-02 We've added 85 non-merge commits during the last 15 day(s) which contain a total of 132 files changed, 13779 insertions(+), 6724 deletions(-). The main changes are: 1) Massive update on test_bpf.ko coverage for JITs as preparatory work for an upcoming MIPS eBPF JIT, from Johan Almbladh. 2) Add a batched interface for RX buffer allocation in AF_XDP buffer pool, with driver support for i40e and ice from Magnus Karlsson. 3) Add legacy uprobe support to libbpf to complement recently merged legacy kprobe support, from Andrii Nakryiko. 4) Add bpf_trace_vprintk() as variadic printk helper, from Dave Marchevsky. 5) Support saving the register state in verifier when spilling <8byte bounded scalar to the stack, from Martin Lau. 6) Add libbpf opt-in for stricter BPF program section name handling as part of libbpf 1.0 effort, from Andrii Nakryiko. 7) Add a document to help clarifying BPF licensing, from Alexei Starovoitov. 8) Fix skel_internal.h to propagate errno if the loader indicates an internal error, from Kumar Kartikeya Dwivedi. 9) Fix build warnings with -Wcast-function-type so that the option can later be enabled by default for the kernel, from Kees Cook. 10) Fix libbpf to ignore STT_SECTION symbols in legacy map definitions as it otherwise errors out when encountering them, from Toke Høiland-Jørgensen. 11) Teach libbpf to recognize specialized maps (such as for perf RB) and internally remove BTF type IDs when creating them, from Hengqi Chen. 12) Various fixes and improvements to BPF selftests. ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2021-10-01audit: add support for the openat2 syscallRichard Guy Briggs2-0/+8
The openat2(2) syscall was added in kernel v5.6 with commit fddb5d430ad9 ("open: introduce openat2(2) syscall"). Add the openat2(2) syscall to the audit syscall classifier. Link: https://github.com/linux-audit/audit-kernel/issues/67 Link: https://lore.kernel.org/r/f5f1a4d8699613f8c02ce762807228c841c2e26f.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs <[email protected]> Acked-by: Christian Brauner <[email protected]> [PM: merge fuzz due to previous header rename, commit line wraps] Signed-off-by: Paul Moore <[email protected]>
2021-10-01audit: replace magic audit syscall class numbers with macrosRichard Guy Briggs2-10/+11
Replace audit syscall class magic numbers with macros. This required putting the macros into new header file include/linux/audit_arch.h since the syscall macros were included for both 64 bit and 32 bit in any compat code, causing redefinition warnings. Link: https://lore.kernel.org/r/2300b1083a32aade7ae7efb95826e8f3f260b1df.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs <[email protected]> Acked-by: Christian Brauner <[email protected]> [PM: renamed header to audit_arch.h after consulting with Richard] Signed-off-by: Paul Moore <[email protected]>
2021-10-01kunit: fix reference count leak in kfree_at_endXiyu Yang1-2/+2
The reference counting issue happens in the normal path of kfree_at_end(). When kunit_alloc_and_get_resource() is invoked, the function forgets to handle the returned resource object, whose refcount increased inside, causing a refcount leak. Fix this issue by calling kunit_alloc_resource() instead of kunit_alloc_and_get_resource(). Fixed the following when applying: Shuah Khan <[email protected]> CHECK: Alignment should match open parenthesis + kunit_alloc_resource(test, NULL, kfree_res_free, GFP_KERNEL, (void *)to_free); Signed-off-by: Xiyu Yang <[email protected]> Signed-off-by: Xin Tan <[email protected]> Reviewed-by: Daniel Latypov <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-10-01bpf/tests: Add test of LDX_MEM with operand aliasingJohan Almbladh1-0/+58
This patch adds a set of tests of BPF_LDX_MEM where both operand registers are the same register. Mainly testing 32-bit JITs that may load a 64-bit value in two 32-bit loads, and must not overwrite the address register. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add test of ALU shifts with operand register aliasingJohan Almbladh1-13/+149
This patch adds a tests of ALU32 and ALU64 LSH/RSH/ARSH operations for the case when the two operands are the same register. Mainly intended to test JITs that implement ALU64 shifts with 32-bit CPU instructions. Also renamed related helper functions for consistency with the new tests. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add exhaustive tests of BPF_ATOMIC register combinationsJohan Almbladh1-0/+422
This patch adds tests of all register combinations for BPF_ATOMIC operations on both BPF_W and BPF_DW sizes. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add exhaustive tests of ALU register combinationsJohan Almbladh1-71/+763
This patch replaces the current register combination test with new exhaustive tests. Before, only a subset of register combinations was tested for ALU64 DIV. Now, all combinatons of operand registers are tested, including the case when they are the same, and for all ALU32 and ALU64 operations. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Minor restructuring of ALU testsJohan Almbladh1-72/+65
This patch moves the ALU LSH/RSH/ARSH reference computations into the common reference value function. Also fix typo in constants so they now have the intended values. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add more tests for ALU and ATOMIC register clobberingJohan Almbladh1-70/+197
This patch expands the register-clobbering-during-function-call tests to cover more all ALU32/64 MUL, DIV and MOD operations and all ATOMIC operations. In short, if a JIT implements a complex operation with a call to an external function, it must make sure to save and restore all its caller-saved registers that may be clobbered by the call. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add tests to check source register zero-extensionJohan Almbladh1-0/+143
This patch adds tests to check that the source register is preserved when zero-extending a 32-bit value. In particular, it checks that the source operand is not zero-extended in-place. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add exhaustive tests of BPF_ATOMIC magnitudesJohan Almbladh1-1/+503
This patch adds a series of test to verify the operation of BPF_ATOMIC with BPF_DW and BPF_W sizes, for all power-of-two magnitudes of the register value operand. Also fixes a confusing typo in the comment for a related test. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add zero-extension checks in BPF_ATOMIC testsJohan Almbladh1-5/+17
This patch updates the existing tests of BPF_ATOMIC operations to verify that a 32-bit register operand is properly zero-extended. In particular, it checks the operation on archs that require 32-bit operands to be properly zero-/sign-extended or the result is undefined, e.g. MIPS64. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add tests of BPF_LDX and BPF_STX with small sizesJohan Almbladh1-0/+254
This patch adds a series of tests to verify the behavior of BPF_LDX and BPF_STX with BPF_B//W sizes in isolation. In particular, it checks that BPF_LDX zero-extendeds the result, and that BPF_STX does not overwrite adjacent bytes in memory. BPF_ST and operations on BPF_DW size are deemed to be sufficiently tested by existing tests. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-30kprobes: treewide: Replace arch_deref_entry_point() with ↵Masami Hiramatsu1-1/+2
dereference_symbol_descriptor() ~15 years ago kprobes grew the 'arch_deref_entry_point()' __weak function: 3d7e33825d87: ("jprobes: make jprobes a little safer for users") But this is just open-coded dereference_symbol_descriptor() in essence, and its obscure nature was causing bugs. Just use the real thing and remove arch_deref_entry_point(). Link: https://lkml.kernel.org/r/163163043630.489837.7924988885652708696.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Tested-by: Andrii Nakryiko <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-09-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-8/+9
drivers/net/phy/bcm7xxx.c d88fd1b546ff ("net: phy: bcm7xxx: Fixed indirect MMD operations") f68d08c437f9 ("net: phy: bcm7xxx: Add EPHY entry for 72165") net/sched/sch_api.c b193e15ac69d ("net: prevent user from passing illegal stab size") 69508d43334e ("net_sched: Use struct_size() and flex_array_size() helpers") Both cases trivial - adjacent code additions. Signed-off-by: Jakub Kicinski <[email protected]>
2021-09-28bpf: Replace "want address" users of BPF_CAST_CALL with BPF_CALL_IMMKees Cook1-1/+1
In order to keep ahead of cases in the kernel where Control Flow Integrity (CFI) may trip over function call casts, enabling -Wcast-function-type is helpful. To that end, BPF_CAST_CALL causes various warnings and is one of the last places in the kernel triggering this warning. Most places using BPF_CAST_CALL actually just want a void * to perform math on. It's not actually performing a call, so just use a different helper to get the void *, by way of the new BPF_CALL_IMM() helper, which can clean up a common copy/paste idiom as well. This change results in no object code difference. Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Reviewed-by: Gustavo A. R. Silva <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://github.com/KSPP/linux/issues/20 Link: https://lore.kernel.org/lkml/CAEf4Bzb46=-J5Fxc3mMZ8JQPtK1uoE0q6+g6WPz53Cvx=CBEhw@mail.gmail.com Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add tail call limit test with external function callJohan Almbladh1-3/+83
This patch adds a tail call limit test where the program also emits a BPF_CALL to an external function prior to the tail call. Mainly testing that JITed programs preserve its internal register state, for example tail call count, across such external calls. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Fix error in tail call limit testsJohan Almbladh1-10/+27
This patch fixes an error in the tail call limit test that caused the test to fail on for x86-64 JIT. Previously, the register R0 was used to report the total number of tail calls made. However, after a tail call fall-through, the value of the R0 register is undefined. Now, all tail call error path tests instead use context state to store the count. Fixes: 874be05f525e ("bpf, tests: Add tail call test suite") Reported-by: Paul Chaignon <[email protected]> Reported-by: Tiezhu Yang <[email protected]> Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Tested-by: Tiezhu Yang <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add more BPF_END byte order conversion testsJohan Almbladh1-0/+122
This patch adds tests of the high 32 bits of 64-bit BPF_END conversions. It also adds a mirrored set of tests where the source bytes are reversed. The MSB of each byte is now set on the high word instead, possibly affecting sign-extension during conversion in a different way. Mainly for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Expand branch conversion JIT testJohan Almbladh1-34/+91
This patch expands the branch conversion test introduced by 66e5eb84 ("bpf, tests: Add branch conversion JIT test"). The test now includes a JMP with maximum eBPF offset. This triggers branch conversion for the 64-bit MIPS JIT. Additional variants are also added for cases when the branch is taken or not taken. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add JMP tests with degenerate conditionalJohan Almbladh1-0/+229
This patch adds a set of tests for JMP and JMP32 operations where the branch decision is know at JIT time. Mainly testing JIT behaviour. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add JMP tests with small offsetsJohan Almbladh1-0/+71
This patch adds a set of tests for JMP to verify that the JITed jump offset is calculated correctly. We pretend that the verifier has inserted any zero extensions to make the jump-over operations JIT to one instruction each, in order to control the exact JITed jump offset. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add test case flag for verifier zero-extensionJohan Almbladh1-0/+3
This patch adds a new flag to indicate that the verified did insert zero-extensions, even though the verifier is not being run for any of the tests. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive test of LD_IMM64 immediate magnitudesJohan Almbladh1-0/+63
This patch adds a test for the 64-bit immediate load, a two-instruction operation, to verify correctness for all possible magnitudes of the immediate operand. Mainly intended for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add staggered JMP and JMP32 testsJohan Almbladh1-0/+829
This patch adds a new type of jump test where the program jumps forwards and backwards with increasing offset. It mainly tests JITs where a relative jump may generate different JITed code depending on the offset size, read MIPS. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive tests of JMP operand magnitudesJohan Almbladh1-0/+779
This patch adds a set of tests for conditional JMP and JMP32 operations to verify correctness for all possible magnitudes of the immediate and register operands. Mainly intended for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive tests of ALU operand magnitudesJohan Almbladh1-0/+772
This patch adds a set of tests for ALU64 and ALU32 arithmetic and bitwise logical operations to verify correctness for all possible magnitudes of the register and immediate operands. Mainly intended for JIT testing. The patch introduces a pattern generator that can be used to drive extensive tests of different kinds of operations. It is parameterized to allow tuning of the operand combinations to test. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive tests of ALU shift valuesJohan Almbladh1-0/+260
This patch adds a set of tests for ALU64 and ALU32 shift operations to verify correctness for all possible values of the shift value. Mainly intended for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Reduce memory footprint of test suiteJohan Almbladh1-14/+12
The test suite used to call any fill_helper callbacks to generate eBPF program data for all test cases at once. This caused ballooning memory requirements as more extensive test cases were added. Now the each fill_helper is called before the test is run and the allocated memory released afterwards, before the next test case is processed. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Allow different number of runs per test caseJohan Almbladh1-0/+4
This patch allows a test cast to specify the number of runs to use. For compatibility with existing test case definitions, the default value 0 is interpreted as MAX_TESTRUNS. A reduced number of runs is useful for complex test programs where 1000 runs may take a very long time. Instead of reducing what is tested, one can instead reduce the number of times the test is run. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-25fortify: Move remaining fortify helpers into fortify-string.hKees Cook1-0/+2
When commit a28a6e860c6c ("string.h: move fortified functions definitions in a dedicated header.") moved the fortify-specific code, some helpers were left behind. Move the remaining fortify-specific helpers into fortify-string.h so they're together where they're used. This requires that any FORTIFY helper function prototypes be conditionally built to avoid "no prototype" warnings. Additionally removes unused helpers. Cc: Andrew Morton <[email protected]> Cc: Daniel Axtens <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Dan Williams <[email protected]> Acked-by: Francis Laniel <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2021-09-25lib/string: Move helper functions out of string.cKees Cook2-204/+199
The core functions of string.c are those that may be implemented by per-architecture functions, or overloaded by FORTIFY_SOURCE. As a result, it needs to be built with __NO_FORTIFY. Without this, macros will collide with function declarations. This was accidentally working due to -ffreestanding (on some architectures). Make this deterministic by explicitly setting __NO_FORTIFY and move all the helper functions into string_helpers.c so that they gain the fortification coverage they had been missing. Cc: Andrew Morton <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Andy Lavr <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Alexey Dobriyan <[email protected]> Cc: Stephen Rothwell <[email protected]> Cc: Bartosz Golaszewski <[email protected]> Acked-by: Andy Shevchenko <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2021-09-24lib/zlib_inflate/inffast: check config in C to avoid unused function warningPaul Menzel1-7/+6
Building Linux for ppc64le with Ubuntu clang version 12.0.0-3ubuntu1~21.04.1 shows the warning below. arch/powerpc/boot/inffast.c:20:1: warning: unused function 'get_unaligned16' [-Wunused-function] get_unaligned16(const unsigned short *p) ^ 1 warning generated. Fix it by moving the check from the preprocessor to C, so the compiler sees the use. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Paul Menzel <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Tested-by: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Zhen Lei <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-09-24xtensa: increase size of gcc stack frame checkGuenter Roeck1-1/+1
xtensa frame size is larger than the frame size for almost all other architectures. This results in more than 50 "the frame size of <n> is larger than 1024 bytes" errors when trying to build xtensa:allmodconfig. Increase frame size for xtensa to 1536 bytes to avoid compile errors due to frame size limits. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]> Reviewed-by: Max Filippov <[email protected]> Cc: Chris Zankel <[email protected]> Cc: David Laight <[email protected]> Cc: Masahiro Yamada <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-09-24kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESSMarco Elver1-0/+2
In the main KASAN config option CC_HAS_WORKING_NOSANITIZE_ADDRESS is checked for instrumentation-based modes. However, if HAVE_ARCH_KASAN_HW_TAGS is true all modes may still be selected. To fix, also make the software modes depend on CC_HAS_WORKING_NOSANITIZE_ADDRESS. Link: https://lkml.kernel.org/r/[email protected] Fixes: 6a63a63ff1ac ("kasan: introduce CONFIG_KASAN_HW_TAGS") Signed-off-by: Marco Elver <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Aleksandr Nogikh <[email protected]> Cc: Taras Madan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-09-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-1/+80
net/mptcp/protocol.c 977d293e23b4 ("mptcp: ensure tx skbs always have the MPTCP ext") efe686ffce01 ("mptcp: ensure tx skbs always have the MPTCP ext") same patch merged in both trees, keep net-next. Signed-off-by: Jakub Kicinski <[email protected]>
2021-09-23Merge tag 'net-5.15-rc3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Current release - regressions: - dsa: bcm_sf2: fix array overrun in bcm_sf2_num_active_ports() Previous releases - regressions: - introduce a shutdown method to mdio device drivers, and make DSA switch drivers compatible with masters disappearing on shutdown; preventing infinite reference wait - fix issues in mdiobus users related to ->shutdown vs ->remove - virtio-net: fix pages leaking when building skb in big mode - xen-netback: correct success/error reporting for the SKB-with-fraglist - dsa: tear down devlink port regions when tearing down the devlink port on error - nexthop: fix division by zero while replacing a resilient group - hns3: check queue, vf, vlan ids range before using Previous releases - always broken: - napi: fix race against netpoll causing NAPI getting stuck - mlx4_en: ensure link operstate is updated even if link comes up before netdev registration - bnxt_en: fix TX timeout when TX ring size is set to the smallest - enetc: fix illegal access when reading affinity_hint; prevent oops on sysfs access - mtk_eth_soc: avoid creating duplicate offload entries Misc: - core: correct the sock::sk_lock.owned lockdep annotations" * tag 'net-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits) atlantic: Fix issue in the pm resume flow. net/mlx4_en: Don't allow aRFS for encapsulated packets net: mscc: ocelot: fix forwarding from BLOCKING ports remaining enabled net: ethernet: mtk_eth_soc: avoid creating duplicate offload entries nfc: st-nci: Add SPI ID matching DT compatible MAINTAINERS: remove Guvenc Gulce as net/smc maintainer nexthop: Fix memory leaks in nexthop notification chain listeners mptcp: ensure tx skbs always have the MPTCP ext qed: rdma - don't wait for resources under hw error recovery flow s390/qeth: fix deadlock during failing recovery s390/qeth: Fix deadlock in remove_discipline s390/qeth: fix NULL deref in qeth_clear_working_pool_list() net: dsa: realtek: register the MDIO bus under devres net: dsa: don't allocate the slave_mii_bus using devres Doc: networking: Fox a typo in ice.rst net: dsa: fix dsa_tree_setup error path net/smc: fix 'workqueue leaked lock' in smc_conn_abort_work net/smc: add missing error check in smc_clc_prfx_set() net: hns3: fix a return value error in hclge_get_reset_status() net: hns3: check vlan id before using it ...
2021-09-23lib: devres: Add managed arch_io_reserve_memtype_wc()Thomas Zimmermann1-0/+46
Add devm_arch_io_reserve_memtype_wc() as managed wrapper around arch_io_reserve_memtype_wc(). Useful for several graphics drivers that set framebuffer memory to write combining. v2: * fix typo in commit description Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Hans de Goede <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-23lib: devres: Add managed arch_phys_wc_add()Thomas Zimmermann1-0/+36
Add devm_arch_phys_wc_add() as managed wrapper around arch_phys_wc_add(). Useful for several graphics drivers that set framebuffer memory to write combining. v2: * fix typo in commit description Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Hans de Goede <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-22isystem: delete global -isystem compile optionAlexey Dobriyan1-0/+4
Further isolate kernel from userspace, prevent accidental inclusion of undesireable headers, mainly float.h and stdatomic.h. nds32 keeps -isystem globally due to intrinsics used in entrenched header. -isystem is selectively reenabled for some files, again, for intrinsics. Compile tested on: hexagon-defconfig hexagon-allmodconfig alpha-allmodconfig alpha-allnoconfig alpha-defconfig arm64-allmodconfig arm64-allnoconfig arm64-defconfig arm-am200epdkit arm-aspeed_g4 arm-aspeed_g5 arm-assabet arm-at91_dt arm-axm55xx arm-badge4 arm-bcm2835 arm-cerfcube arm-clps711x arm-cm_x300 arm-cns3420vb arm-colibri_pxa270 arm-colibri_pxa300 arm-collie arm-corgi arm-davinci_all arm-dove arm-ep93xx arm-eseries_pxa arm-exynos arm-ezx arm-footbridge arm-gemini arm-h3600 arm-h5000 arm-hackkit arm-hisi arm-imote2 arm-imx_v4_v5 arm-imx_v6_v7 arm-integrator arm-iop32x arm-ixp4xx arm-jornada720 arm-keystone arm-lart arm-lpc18xx arm-lpc32xx arm-lpd270 arm-lubbock arm-magician arm-mainstone arm-milbeaut_m10v arm-mini2440 arm-mmp2 arm-moxart arm-mps2 arm-multi_v4t arm-multi_v5 arm-multi_v7 arm-mv78xx0 arm-mvebu_v5 arm-mvebu_v7 arm-mxs arm-neponset arm-netwinder arm-nhk8815 arm-omap1 arm-omap2plus arm-orion5x arm-oxnas_v6 arm-palmz72 arm-pcm027 arm-pleb arm-pxa arm-pxa168 arm-pxa255-idp arm-pxa3xx arm-pxa910 arm-qcom arm-realview arm-rpc arm-s3c2410 arm-s3c6400 arm-s5pv210 arm-sama5 arm-shannon arm-shmobile arm-simpad arm-socfpga arm-spear13xx arm-spear3xx arm-spear6xx arm-spitz arm-stm32 arm-sunxi arm-tct_hammer arm-tegra arm-trizeps4 arm-u8500 arm-versatile arm-vexpress arm-vf610m4 arm-viper arm-vt8500_v6_v7 arm-xcep arm-zeus csky-allmodconfig csky-allnoconfig csky-defconfig h8300-edosk2674 h8300-h8300h-sim h8300-h8s-sim i386-allmodconfig i386-allnoconfig i386-defconfig ia64-allmodconfig ia64-allnoconfig ia64-bigsur ia64-generic ia64-gensparse ia64-tiger ia64-zx1 m68k-amcore m68k-amiga m68k-apollo m68k-atari m68k-bvme6000 m68k-hp300 m68k-m5208evb m68k-m5249evb m68k-m5272c3 m68k-m5275evb m68k-m5307c3 m68k-m5407c3 m68k-m5475evb m68k-mac m68k-multi m68k-mvme147 m68k-mvme16x m68k-q40 m68k-stmark2 m68k-sun3 m68k-sun3x microblaze-allmodconfig microblaze-allnoconfig microblaze-mmu mips-ar7 mips-ath25 mips-ath79 mips-bcm47xx mips-bcm63xx mips-bigsur mips-bmips_be mips-bmips_stb mips-capcella mips-cavium_octeon mips-ci20 mips-cobalt mips-cu1000-neo mips-cu1830-neo mips-db1xxx mips-decstation mips-decstation_64 mips-decstation_r4k mips-e55 mips-fuloong2e mips-gcw0 mips-generic mips-gpr mips-ip22 mips-ip27 mips-ip28 mips-ip32 mips-jazz mips-jmr3927 mips-lemote2f mips-loongson1b mips-loongson1c mips-loongson2k mips-loongson3 mips-malta mips-maltaaprp mips-malta_kvm mips-malta_qemu_32r6 mips-maltasmvp mips-maltasmvp_eva mips-maltaup mips-maltaup_xpa mips-mpc30x mips-mtx1 mips-nlm_xlp mips-nlm_xlr mips-omega2p mips-pic32mzda mips-pistachio mips-qi_lb60 mips-rb532 mips-rbtx49xx mips-rm200 mips-rs90 mips-rt305x mips-sb1250_swarm mips-tb0219 mips-tb0226 mips-tb0287 mips-vocore2 mips-workpad mips-xway nds32-allmodconfig nds32-allnoconfig nds32-defconfig nios2-10m50 nios2-3c120 nios2-allmodconfig nios2-allnoconfig openrisc-allmodconfig openrisc-allnoconfig openrisc-or1klitex openrisc-or1ksim openrisc-simple_smp parisc-allnoconfig parisc-generic-32bit parisc-generic-64bit powerpc-acadia powerpc-adder875 powerpc-akebono powerpc-amigaone powerpc-arches powerpc-asp8347 powerpc-bamboo powerpc-bluestone powerpc-canyonlands powerpc-cell powerpc-chrp32 powerpc-cm5200 powerpc-currituck powerpc-ebony powerpc-eiger powerpc-ep8248e powerpc-ep88xc powerpc-fsp2 powerpc-g5 powerpc-gamecube powerpc-ge_imp3a powerpc-holly powerpc-icon powerpc-iss476-smp powerpc-katmai powerpc-kilauea powerpc-klondike powerpc-kmeter1 powerpc-ksi8560 powerpc-linkstation powerpc-lite5200b powerpc-makalu powerpc-maple powerpc-mgcoge powerpc-microwatt powerpc-motionpro powerpc-mpc512x powerpc-mpc5200 powerpc-mpc7448_hpc2 powerpc-mpc8272_ads powerpc-mpc8313_rdb powerpc-mpc8315_rdb powerpc-mpc832x_mds powerpc-mpc832x_rdb powerpc-mpc834x_itx powerpc-mpc834x_itxgp powerpc-mpc834x_mds powerpc-mpc836x_mds powerpc-mpc836x_rdk powerpc-mpc837x_mds powerpc-mpc837x_rdb powerpc-mpc83xx powerpc-mpc8540_ads powerpc-mpc8560_ads powerpc-mpc85xx_cds powerpc-mpc866_ads powerpc-mpc885_ads powerpc-mvme5100 powerpc-obs600 powerpc-pasemi powerpc-pcm030 powerpc-pmac32 powerpc-powernv powerpc-ppa8548 powerpc-ppc40x powerpc-ppc44x powerpc-ppc64 powerpc-ppc64e powerpc-ppc6xx powerpc-pq2fads powerpc-ps3 powerpc-pseries powerpc-rainier powerpc-redwood powerpc-sam440ep powerpc-sbc8548 powerpc-sequoia powerpc-skiroot powerpc-socrates powerpc-storcenter powerpc-stx_gp3 powerpc-taishan powerpc-tqm5200 powerpc-tqm8540 powerpc-tqm8541 powerpc-tqm8548 powerpc-tqm8555 powerpc-tqm8560 powerpc-tqm8xx powerpc-walnut powerpc-warp powerpc-wii powerpc-xes_mpc85xx riscv-allmodconfig riscv-allnoconfig riscv-nommu_k210 riscv-nommu_k210_sdcard riscv-nommu_virt riscv-rv32 s390-allmodconfig s390-allnoconfig s390-debug s390-zfcpdump sh-ap325rxa sh-apsh4a3a sh-apsh4ad0a sh-dreamcast sh-ecovec24 sh-ecovec24-romimage sh-edosk7705 sh-edosk7760 sh-espt sh-hp6xx sh-j2 sh-kfr2r09 sh-kfr2r09-romimage sh-landisk sh-lboxre2 sh-magicpanelr2 sh-microdev sh-migor sh-polaris sh-r7780mp sh-r7785rp sh-rsk7201 sh-rsk7203 sh-rsk7264 sh-rsk7269 sh-rts7751r2d1 sh-rts7751r2dplus sh-sdk7780 sh-sdk7786 sh-se7206 sh-se7343 sh-se7619 sh-se7705 sh-se7712 sh-se7721 sh-se7722 sh-se7724 sh-se7750 sh-se7751 sh-se7780 sh-secureedge5410 sh-sh03 sh-sh2007 sh-sh7710voipgw sh-sh7724_generic sh-sh7757lcr sh-sh7763rdp sh-sh7770_generic sh-sh7785lcr sh-sh7785lcr_32bit sh-shmin sh-shx3 sh-titan sh-ul2 sh-urquell sparc-allmodconfig sparc-allnoconfig sparc-sparc32 sparc-sparc64 um-i386-allmodconfig um-i386-allnoconfig um-i386-defconfig um-x86_64-allmodconfig um-x86_64-allnoconfig x86_64-allmodconfig x86_64-allnoconfig x86_64-defconfig xtensa-allmodconfig xtensa-allnoconfig xtensa-audio_kc705 xtensa-cadence_csp xtensa-common xtensa-generic_kc705 xtensa-iss xtensa-nommu_kc705 xtensa-smp_lx200 xtensa-virt xtensa-xip_kc705 Tested-by: Nathan Chancellor <[email protected]> # build (hexagon) Signed-off-by: Alexey Dobriyan <[email protected]> Acked-by: Ard Biesheuvel <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]>
2021-09-19pci_iounmap'2: Electric Boogaloo: try to make sense of it allLinus Torvalds1-0/+43
Nathan Chancellor reports that the recent change to pci_iounmap in commit 9caea0007601 ("parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled") causes build errors on arm64. It took me about two hours to convince myself that I think I know what the logic of that mess of #ifdef's in the <asm-generic/io.h> header file really aim to do, and rewrite it to be easier to follow. Famous last words. Anyway, the code has now been lifted from that grotty header file into lib/pci_iomap.c, and has fairly extensive comments about what the logic is. It also avoids indirecting through another confusing (and badly named) helper function that has other preprocessor config conditionals. Let's see what odd architecture did something else strange in this area to break things. But my arm64 cross build is clean. Fixes: 9caea0007601 ("parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled") Reported-by: Nathan Chancellor <[email protected]> Cc: Helge Deller <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Guenter Roeck <[email protected]> Cc: Ulrich Teichert <[email protected]> Cc: James Bottomley <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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