On Fri, Mar 04, 2022 at 09:34:14PM +0200, Andy Shevchenko wrote:

In the fbtft_init_display() the init sequence is printed for the debug purposes. Unfortunately the current code doesn't take into account that values in the buffer are of the s16 type.

Consider that and replace the printing code with fbtft_par_dbg_hex() call.

Fixes: b888897014a9 ("staging/fbtft: Remove all strcpy() uses") Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com

---

drivers/staging/fbtft/fbtft-core.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index 4a35347b3020..b28a059ad3b4 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -1035,10 +1035,9 @@ int fbtft_init_display(struct fbtft_par *par) for (j = 0; par->init_sequence[i + 1 + j] >= 0; j++) ;

• 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
  

• 		      "init: write(0x%02X) %*ph\n",
  

• 		      par->init_sequence[i], j,
  

• 		      &par->init_sequence[i + 1]);
  

• 	fbtft_par_dbg_hex(DEBUG_INIT_DISPLAY, par, par->info->device,
  

• 			  s16, &par->init_sequence[i + 1], j,
  

• 			  "init: write(0x%02X)", par->init_sequence[i]);
  
  /* Write */
  j = 0;
  

-- 2.34.1

Any reason you didn't test build this?

drivers/staging/fbtft/fbtft-core.c: In function ‘fbtft_init_display’: drivers/staging/fbtft/fbtft-core.c:1038:48: error: passing argument 3 of ‘fbtft_dbg_hex’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] 1038 | s16, &par->init_sequence[i + 1], j, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/staging/fbtft/fbtft.h:441:50: note: in definition of macro ‘fbtft_par_dbg_hex’ 441 | fbtft_dbg_hex(dev, sizeof(type), buf,\ | ^~~ drivers/staging/fbtft/fbtft-core.c:52:26: note: expected ‘void *’ but argument is of type ‘const s16 *’ {aka ‘const short int *’} 52 | void *buf, size_t len, const char *fmt, ...) | ~~~~~~^~~ LD [M] drivers/staging/gdm724x/gdmulte.o cc1: all warnings being treated as errors