Messages in this thread Patch in this message | | | From | Jiaxun Yang <> | Subject | [PATCH] MIPS: jump_label: Fix compat branch range check | Date | Sat, 29 Oct 2022 21:35:35 +0100 |
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Cast upper bound of branch range to long to do signed compare, avoid negtive offset trigger this warning.
Fixes: 9b6584e35f40 ("MIPS: jump_label: Use compact branches for >= r6") Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: stable@vger.kernel.org --- arch/mips/kernel/jump_label.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/kernel/jump_label.c b/arch/mips/kernel/jump_label.c index 71a882c8c6eb..f7978d50a2ba 100644 --- a/arch/mips/kernel/jump_label.c +++ b/arch/mips/kernel/jump_label.c @@ -56,7 +56,7 @@ void arch_jump_label_transform(struct jump_entry *e, * The branch offset must fit in the instruction's 26 * bit field. */ - WARN_ON((offset >= BIT(25)) || + WARN_ON((offset >= (long)BIT(25)) || (offset < -(long)BIT(25))); insn.j_format.opcode = bc6_op; -- 2.34.1
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