Inlining these functions creates lots of stack variables when KASAN is enabled, leading to this warning about potential stack overflow:
drivers/net/ethernet/rocker/rocker_ofdpa.c: In function 'ofdpa_cmd_flow_tbl_add': drivers/net/ethernet/rocker/rocker_ofdpa.c:621:1: error: the frame size of 2752 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]
This marks all of them noinline_for_kasan, which solves the problem by keeping the redzone inside of the separate stack frames.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- drivers/net/ethernet/rocker/rocker_tlv.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/rocker/rocker_tlv.h b/drivers/net/ethernet/rocker/rocker_tlv.h index a63ef82e7c72..3a9573fe0191 100644 --- a/drivers/net/ethernet/rocker/rocker_tlv.h +++ b/drivers/net/ethernet/rocker/rocker_tlv.h @@ -139,38 +139,38 @@ rocker_tlv_start(struct rocker_desc_info *desc_info) int rocker_tlv_put(struct rocker_desc_info *desc_info, int attrtype, int attrlen, const void *data);
-static inline int rocker_tlv_put_u8(struct rocker_desc_info *desc_info, - int attrtype, u8 value) +static noinline_for_kasan int +rocker_tlv_put_u8(struct rocker_desc_info *desc_info, int attrtype, u8 value) { return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value); }
-static inline int rocker_tlv_put_u16(struct rocker_desc_info *desc_info, - int attrtype, u16 value) +static noinline_for_kasan int +rocker_tlv_put_u16(struct rocker_desc_info *desc_info, int attrtype, u16 value) { return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value); }
-static inline int rocker_tlv_put_be16(struct rocker_desc_info *desc_info, - int attrtype, __be16 value) +static noinline_for_kasan int +rocker_tlv_put_be16(struct rocker_desc_info *desc_info, int attrtype, __be16 value) { return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value); }
-static inline int rocker_tlv_put_u32(struct rocker_desc_info *desc_info, - int attrtype, u32 value) +static noinline_for_kasan int +rocker_tlv_put_u32(struct rocker_desc_info *desc_info, int attrtype, u32 value) { return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value); }
-static inline int rocker_tlv_put_be32(struct rocker_desc_info *desc_info, - int attrtype, __be32 value) +static noinline_for_kasan int +rocker_tlv_put_be32(struct rocker_desc_info *desc_info, int attrtype, __be32 value) { return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value); }
-static inline int rocker_tlv_put_u64(struct rocker_desc_info *desc_info, - int attrtype, u64 value) +static noinline_for_kasan int +rocker_tlv_put_u64(struct rocker_desc_info *desc_info, int attrtype, u64 value) { return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value); }