Hi Mauro, I love your patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on next-20190226] [cannot apply to v5.0-rc8] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Mauro-Carvalho-Chehab/media-vim2m-improve-debug-messages/20190227-194011 base: git://linuxtv.org/media_tree.git master config: nds32-allyesconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 6.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=6.4.0 make.cross ARCH=nds32 All warnings (new ones prefixed by >>): In file included from include/media/v4l2-subdev.h:24:0, from include/media/v4l2-device.h:25, from drivers/media/platform/vim2m.c:28: drivers/media/platform/vim2m.c: In function 'vim2m_buf_prepare': include/media/v4l2-common.h:84:13: warning: comparison between pointer and integer if (debug >= (level)) \ ^ >> drivers/media/platform/vim2m.c:71:2: note: in expansion of macro 'v4l2_dbg' v4l2_dbg(lvl, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) ^~~~~~~~ >> drivers/media/platform/vim2m.c:893:3: note: in expansion of macro 'dprintk' dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n", ^~~~~~~ drivers/media/platform/vim2m.c:894:5: error: expected ')' before '__func__' __func__, vb2_plane_size(vb, 0), (long)q_data->sizeimage); ^ include/media/v4l2-common.h:69:22: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~ >> drivers/media/platform/vim2m.c:71:2: note: in expansion of macro 'v4l2_dbg' v4l2_dbg(lvl, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) ^~~~~~~~ >> drivers/media/platform/vim2m.c:893:3: note: in expansion of macro 'dprintk' dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n", ^~~~~~~ include/linux/kern_levels.h:5:18: warning: format '%s' expects a matching 'char *' argument [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ ^~~~~~~~ include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG' v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \ ^~~~~~~~~~ >> drivers/media/platform/vim2m.c:71:2: note: in expansion of macro 'v4l2_dbg' v4l2_dbg(lvl, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) ^~~~~~~~ >> drivers/media/platform/vim2m.c:893:3: note: in expansion of macro 'dprintk' dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n", ^~~~~~~ include/linux/kern_levels.h:5:18: warning: format '%s' expects a matching 'char *' argument [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ ^~~~~~~~ include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG' v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \ ^~~~~~~~~~ >> drivers/media/platform/vim2m.c:71:2: note: in expansion of macro 'v4l2_dbg' v4l2_dbg(lvl, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) ^~~~~~~~ >> drivers/media/platform/vim2m.c:893:3: note: in expansion of macro 'dprintk' dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n", ^~~~~~~ vim +/v4l2_dbg +71 drivers/media/platform/vim2m.c 25 26 #include <linux/platform_device.h> 27 #include <media/v4l2-mem2mem.h> > 28 #include <media/v4l2-device.h> 29 #include <media/v4l2-ioctl.h> 30 #include <media/v4l2-ctrls.h> 31 #include <media/v4l2-event.h> 32 #include <media/videobuf2-vmalloc.h> 33 34 MODULE_DESCRIPTION("Virtual device for mem2mem framework testing"); 35 MODULE_AUTHOR("Pawel Osciak, <pawel@xxxxxxxxxx>"); 36 MODULE_LICENSE("GPL"); 37 MODULE_VERSION("0.1.1"); 38 MODULE_ALIAS("mem2mem_testdev"); 39 40 static unsigned debug; 41 module_param(debug, uint, 0644); 42 MODULE_PARM_DESC(debug, "debug level"); 43 44 /* Default transaction time in msec */ 45 static unsigned int default_transtime = 40; /* Max 25 fps */ 46 module_param(default_transtime, uint, 0644); 47 MODULE_PARM_DESC(default_transtime, "default transaction time in ms"); 48 49 #define MIN_W 32 50 #define MIN_H 32 51 #define MAX_W 640 52 #define MAX_H 480 53 #define DIM_ALIGN_MASK 7 /* 8-byte alignment for line length */ 54 55 /* Flags that indicate a format can be used for capture/output */ 56 #define MEM2MEM_CAPTURE (1 << 0) 57 #define MEM2MEM_OUTPUT (1 << 1) 58 59 #define MEM2MEM_NAME "vim2m" 60 61 /* Per queue */ 62 #define MEM2MEM_DEF_NUM_BUFS VIDEO_MAX_FRAME 63 /* In bytes, per queue */ 64 #define MEM2MEM_VID_MEM_LIMIT (16 * 1024 * 1024) 65 66 /* Flags that indicate processing mode */ 67 #define MEM2MEM_HFLIP (1 << 0) 68 #define MEM2MEM_VFLIP (1 << 1) 69 70 #define dprintk(dev, lvl, fmt, arg...) \ > 71 v4l2_dbg(lvl, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) 72 73 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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