Messages in this thread Patch in this message | | | From | Manivannan Sadhasivam <> | Subject | [PATCH v2] bus: mhi: core: debugfs: Use correct format specifiers for addresses | Date | Sat, 26 Sep 2020 22:51:29 +0530 |
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For exposing the addresses of read/write pointers and doorbell register, let's use the correct format specifiers. This fixes the following issues generated using W=1 build in ARM32 and reported by Kbuild bot:
All warnings (new ones prefixed by >>):
>> drivers/bus/mhi/core/debugfs.c:75:7: warning: format specifies type 'unsigned long long' but the argument has type 'dma_addr_t' (aka 'unsigned int') [-Wformat] mhi_event->db_cfg.db_val); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/mhi/core/debugfs.c:123:7: warning: format specifies type 'unsigned long long' but the argument has type 'dma_addr_t' (aka 'unsigned int') [-Wformat] mhi_chan->db_cfg.db_val); ^~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated.
drivers/bus/mhi/core/debugfs.c: In function ‘mhi_debugfs_events_show’: drivers/bus/mhi/core/debugfs.c:74:51: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] seq_printf(m, " local rp: 0x%llx db: 0x%pad\n", (u64)ring->rp, ^ drivers/bus/mhi/core/debugfs.c: In function ‘mhi_debugfs_channels_show’: drivers/bus/mhi/core/debugfs.c:122:7: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] (u64)ring->rp, (u64)ring->wp, ^ drivers/bus/mhi/core/debugfs.c:122:22: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] (u64)ring->rp, (u64)ring->wp, ^ drivers/bus/mhi/core/debugfs.c:121:62: warning: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 5 has type ‘dma_addr_t {aka unsigned int}’ [-Wformat=] seq_printf(m, " local rp: 0x%llx local wp: 0x%llx db: 0x%llx\n", ~~~^ %x drivers/bus/mhi/core/debugfs.c:123:7: mhi_chan->db_cfg.db_val);
Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ---
Changes in v2:
* Used %pK format specifier to hash addresses by default
Greg: This fixes the issue seen while testing the char-misc/char-misc-testing branch.
drivers/bus/mhi/core/debugfs.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/bus/mhi/core/debugfs.c b/drivers/bus/mhi/core/debugfs.c index 53d05a8e168d..f50d73054db4 100644 --- a/drivers/bus/mhi/core/debugfs.c +++ b/drivers/bus/mhi/core/debugfs.c @@ -71,8 +71,8 @@ static int mhi_debugfs_events_show(struct seq_file *m, void *d) seq_printf(m, " rp: 0x%llx wp: 0x%llx", er_ctxt->rp, er_ctxt->wp); - seq_printf(m, " local rp: 0x%llx db: 0x%llx\n", (u64)ring->rp, - mhi_event->db_cfg.db_val); + seq_printf(m, " local rp: 0x%pK db: 0x%pad\n", ring->rp, + &mhi_event->db_cfg.db_val); } return 0; @@ -118,9 +118,9 @@ static int mhi_debugfs_channels_show(struct seq_file *m, void *d) seq_printf(m, " base: 0x%llx len: 0x%llx wp: 0x%llx", chan_ctxt->rbase, chan_ctxt->rlen, chan_ctxt->wp); - seq_printf(m, " local rp: 0x%llx local wp: 0x%llx db: 0x%llx\n", - (u64)ring->rp, (u64)ring->wp, - mhi_chan->db_cfg.db_val); + seq_printf(m, " local rp: 0x%pK local wp: 0x%pK db: 0x%pad\n", + ring->rp, ring->wp, + &mhi_chan->db_cfg.db_val); } return 0; -- 2.17.1
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