From: Peng Hao <flyingpeng@xxxxxxxxxxx> drivers/infiniband/hw/ocrdma/ocrdma_stats.c:686:16: error: stack frame size (20664) exceeds limit (8192) in 'ocrdma_dbgfs_ops_read' [-Werror,-Wframe-larger-than] static ssize_t ocrdma_dbgfs_ops_read(struct file *filp, char __user *buffer, ^ Some functions called by ocrdma_dbgfs_ops_read occupy a lot of stack space. Mark these functions as noinline_for_stack to prevent them from accumulating in ocrdma_dbgfs_ops_read. Signed-off-by: Peng Hao <flyingpeng@xxxxxxxxxxx> --- drivers/infiniband/hw/ocrdma/ocrdma_stats.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c index 5f831e3bdbad..3fdc57969f7d 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c @@ -99,7 +99,7 @@ void ocrdma_release_stats_resources(struct ocrdma_dev *dev) kfree(mem->debugfs_mem); } -static char *ocrdma_resource_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_resource_stats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -216,7 +216,7 @@ static char *ocrdma_resource_stats(struct ocrdma_dev *dev) return stats; } -static char *ocrdma_rx_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_rx_stats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -284,7 +284,7 @@ static u64 ocrdma_sysfs_rcv_data(struct ocrdma_dev *dev) rx_stats->roce_frame_bytes_hi))/4; } -static char *ocrdma_tx_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_tx_stats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -358,7 +358,7 @@ static u64 ocrdma_sysfs_xmit_data(struct ocrdma_dev *dev) tx_stats->read_rsp_bytes_hi))/4; } -static char *ocrdma_wqe_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_wqe_stats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -391,7 +391,7 @@ static char *ocrdma_wqe_stats(struct ocrdma_dev *dev) return stats; } -static char *ocrdma_db_errstats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_db_errstats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -412,7 +412,7 @@ static char *ocrdma_db_errstats(struct ocrdma_dev *dev) return stats; } -static char *ocrdma_rxqp_errstats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_rxqp_errstats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -438,7 +438,7 @@ static char *ocrdma_rxqp_errstats(struct ocrdma_dev *dev) return stats; } -static char *ocrdma_txqp_errstats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_txqp_errstats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; struct ocrdma_rdma_stats_resp *rdma_stats = @@ -462,7 +462,7 @@ static char *ocrdma_txqp_errstats(struct ocrdma_dev *dev) return stats; } -static char *ocrdma_tx_dbg_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_tx_dbg_stats(struct ocrdma_dev *dev) { int i; char *pstats = dev->stats_mem.debugfs_mem; @@ -480,7 +480,7 @@ static char *ocrdma_tx_dbg_stats(struct ocrdma_dev *dev) return dev->stats_mem.debugfs_mem; } -static char *ocrdma_rx_dbg_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_rx_dbg_stats(struct ocrdma_dev *dev) { int i; char *pstats = dev->stats_mem.debugfs_mem; @@ -498,7 +498,7 @@ static char *ocrdma_rx_dbg_stats(struct ocrdma_dev *dev) return dev->stats_mem.debugfs_mem; } -static char *ocrdma_driver_dbg_stats(struct ocrdma_dev *dev) +static noinline_for_stack char *ocrdma_driver_dbg_stats(struct ocrdma_dev *dev) { char *stats = dev->stats_mem.debugfs_mem, *pcur; -- 2.31.1