[PATCH] arm64: take SHN_LIVEPATCH syms into account when calculating plt_max_entries

[Jessica Yu]

SHN_LIVEPATCH symbols are technically a subset of SHN_UNDEF/undefined
symbols, except that their addresses are resolved by livepatch at runtime.
Therefore, when calculating the upper-bound for the number of plt entries
to allocate, make sure to take livepatch symbols into account as well.

Signed-off-by: Jessica Yu <jeyu at redhat.com>
---
 arch/arm64/kernel/module-plts.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c
index 1ce90d8..1e95dc1 100644
--- a/arch/arm64/kernel/module-plts.c
+++ b/arch/arm64/kernel/module-plts.c
@@ -122,7 +122,8 @@ static unsigned int count_plts(Elf64_Sym *syms, Elf64_Rela *rela, int num)
                         * as well, so modules can never grow beyond that limit.
                         */
                        s = syms + ELF64_R_SYM(rela[i].r_info);
-                       if (s->st_shndx != SHN_UNDEF)
+                       if (s->st_shndx != SHN_UNDEF &&
+                           s->st_shndx != SHN_LIVEPATCH)
                                break;

                        /*
-- 
2.5.5