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authorAndrew Murray <andrew.murray@arm.com>2019-08-28 18:50:05 +0100
committerWill Deacon <will@kernel.org>2019-08-29 15:10:10 +0100
commit8f35eaa5f2de020073a48ad51112237c5932cfcc (patch)
tree7c8c92bcc562cc79495a89ce0abec2a5ba38e201 /kernel/irq/Makefile
parente21a712a9685488f5ce80495b37b9fdbe96c230d (diff)
jump_label: Don't warn on __exit jump entries
On architectures that discard .exit.* sections at runtime, a warning is printed for each jump label that is used within an in-kernel __exit annotated function: can't patch jump_label at ehci_hcd_cleanup+0x8/0x3c WARNING: CPU: 0 PID: 1 at kernel/jump_label.c:410 __jump_label_update+0x12c/0x138 As these functions will never get executed (they are free'd along with the rest of initmem) - we do not need to patch them and should not display any warnings. The warning is displayed because the test required to satisfy jump_entry_is_init is based on init_section_contains (__init_begin to __init_end) whereas the test in __jump_label_update is based on init_kernel_text (_sinittext to _einittext) via kernel_text_address). Fixes: 19483677684b ("jump_label: Annotate entries that operate on __init code earlier") Signed-off-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'kernel/irq/Makefile')
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