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676b2f99b0
linux/arch/powerpc/lib
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Nicholas Miehlbradt 676b2f99b0 powerpc: Add static_key_feature_checks_initialized flag 
JUMP_LABEL_FEATURE_CHECK_DEBUG used static_key_intialized to determine
whether {cpu,mmu}_has_feature() is used before static keys were
initialized. However, {cpu,mmu}_has_feature() should not be used before
setup_feature_keys() is called but static_key_initialized is set well
before this by the call to jump_label_init() in early_init_devtree().
This creates a window in which JUMP_LABEL_FEATURE_CHECK_DEBUG will not
detect misuse and report errors. Add a flag specifically to indicate
when {cpu,mmu}_has_feature() is safe to use.

Signed-off-by: Nicholas Miehlbradt <nicholas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240408052358.5030-1-nicholas@linux.ibm.com
2024-04-15 12:53:39 +10:00
..
checksum_32.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
checksum_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
checksum_wrappers.c net: unexport csum_and_copy_{from,to}_user 2022-04-29 14:37:59 -07:00
code-patching.c powerpc/code-patching: introduce patch_instructions() 2023-10-23 20:33:19 +11:00
copy_32.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
copy_mc_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
copypage_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
copypage_power7.S powerpc/64s: Move dcbt/dcbtst sequence into a macro 2024-03-03 23:05:21 +11:00
copyuser_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
copyuser_power7.S powerpc/64s: Move dcbt/dcbtst sequence into a macro 2024-03-03 23:05:21 +11:00
crtsavres.S powerpc/64: Do not create new section for save/restore functions 2017-05-30 14:59:51 +10:00
div64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
error-inject.c powerpc/64s: avoid reloading (H)SRR registers if they are still valid 2021-06-25 00:06:55 +10:00
feature-fixups-test.S powerpc: Test prefixed instructions in feature fixups 2020-05-19 00:11:02 +10:00
feature-fixups.c powerpc: Add static_key_feature_checks_initialized flag 2024-04-15 12:53:39 +10:00
hweight_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
ldstfp.S powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
locks.c powerpc/pseries: Move some PAPR paravirt functions to their own file 2020-07-26 23:34:26 +10:00
Makefile powerpc: xor_vmx: Add '-mhard-float' to CFLAGS 2024-03-07 00:13:28 +11:00
mem_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
memcmp_32.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
memcmp_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
memcpy_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
memcpy_power7.S powerpc/64s: Move dcbt/dcbtst sequence into a macro 2024-03-03 23:05:21 +11:00
pmem.c powerpc: Remove memcpy_page_flushcache() 2023-03-29 23:53:02 +11:00
qspinlock.c powerpc/qspinlock: Rename yield_propagate_owner tunable 2023-10-20 22:43:34 +11:00
quad.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
restart_table.c powerpc/64s: add a table of implicit soft-masked addresses 2021-06-30 22:21:20 +10:00
rheap.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
sstep.c powerpc: Use user_mode() macro when possible 2024-02-22 21:55:33 +11:00
string_32.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
string_64.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
string.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
strlen_32.S powerpc: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-16 23:54:48 +10:00
test_emulate_step_exec_instr.S powerpc: add definition for pt_regs offset within an interrupt frame 2022-12-02 17:54:08 +11:00
test_emulate_step.c powerpc/ppc-opcode: Define and use PPC_RAW_SETB() 2022-07-27 21:36:05 +10:00
test-code-patching.c powerpc/code-patching: Replace patch_instruction() by ppc_inst_write() in selftests 2021-12-23 22:36:58 +11:00
vmx-helper.c powerpc: Fix reschedule bug in KUAP-unlocked user copy 2022-10-18 22:46:19 +11:00
xor_vmx_glue.c lib/xor: make xor prototypes more friendly to compiler vectorization 2022-02-11 20:39:39 +11:00
xor_vmx.c lib/xor: make xor prototypes more friendly to compiler vectorization 2022-02-11 20:39:39 +11:00
xor_vmx.h lib/xor: make xor prototypes more friendly to compiler vectorization 2022-02-11 20:39:39 +11:00