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From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: gregkh@linuxfoundation.org
Cc: hemantk@codeaurora.org, jhugo@codeaurora.org,
	bbhatt@codeaurora.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Subject: [PATCH] bus: mhi: core: debugfs: Use correct format specifiers for addresses
Date: Fri, 25 Sep 2020 22:46:08 +0530	[thread overview]
Message-ID: <20200925171608.30881-1-manivannan.sadhasivam@linaro.org> (raw)

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>
---

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..2536ff92b76f 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%px 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%px local wp: 0x%px db: 0x%pad\n",
+			   ring->rp, ring->wp,
+			   &mhi_chan->db_cfg.db_val);
 	}
 
 	return 0;
-- 
2.17.1


             reply	other threads:[~2020-09-25 17:16 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-25 17:16 Manivannan Sadhasivam [this message]
2020-09-25 18:01 ` [PATCH] bus: mhi: core: debugfs: Use correct format specifiers for addresses Jeffrey Hugo
2020-09-26  5:27   ` Manivannan Sadhasivam
2020-09-26  5:39     ` Greg KH
2020-09-26  7:16       ` Manivannan Sadhasivam
2020-09-26 12:46         ` Greg KH
2020-09-26 14:13           ` Manivannan Sadhasivam

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