Hi Jiri, I love your patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on linux/master linus/master v5.11-rc4 next-20210121] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Jiri-Kosina/floppy-reintroduce-O_NDELAY-fix/20210121-182951 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: sparc64-randconfig-r033-20210121 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/605da67173ab7c362845b2f74c2914bfcec6db2e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jiri-Kosina/floppy-reintroduce-O_NDELAY-fix/20210121-182951 git checkout 605da67173ab7c362845b2f74c2914bfcec6db2e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/sparc/include/asm/floppy.h:5, from drivers/block/floppy.c:251: arch/sparc/include/asm/floppy_64.h:200:13: warning: no previous prototype for 'sparc_floppy_irq' [-Wmissing-prototypes] 200 | irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie) | ^~~~~~~~~~~~~~~~ In file included from arch/sparc/include/asm/floppy.h:5, from drivers/block/floppy.c:251: arch/sparc/include/asm/floppy_64.h:437:6: warning: no previous prototype for 'sun_pci_fd_dma_callback' [-Wmissing-prototypes] 437 | void sun_pci_fd_dma_callback(struct ebus_dma_info *p, int event, void *cookie) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/block/floppy.c: In function 'floppy_open': >> drivers/block/floppy.c:4125:3: error: 'UDRS' undeclared (first use in this function) 4125 | UDRS->last_checked = 0; | ^~~~ drivers/block/floppy.c:4125:3: note: each undeclared identifier is reported only once for each function it appears in >> drivers/block/floppy.c:4127:3: error: implicit declaration of function 'check_disk_change'; did you mean 'bdev_disk_changed'? [-Werror=implicit-function-declaration] 4127 | check_disk_change(bdev); | ^~~~~~~~~~~~~~~~~ | bdev_disk_changed cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for COMPAT_BINFMT_ELF Depends on COMPAT && BINFMT_ELF Selected by - COMPAT && SPARC64 WARNING: unmet direct dependencies detected for FRAME_POINTER Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS || MCOUNT Selected by - LOCKDEP && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && !MIPS && !PPC && !ARM && !S390 && !MICROBLAZE && !ARC && !X86 vim +/UDRS +4125 drivers/block/floppy.c 4052 4053 /* 4054 * floppy_open check for aliasing (/dev/fd0 can be the same as 4055 * /dev/PS0 etc), and disallows simultaneous access to the same 4056 * drive with different device numbers. 4057 */ 4058 static int floppy_open(struct block_device *bdev, fmode_t mode) 4059 { 4060 int drive = (long)bdev->bd_disk->private_data; 4061 int old_dev, new_dev; 4062 int try; 4063 int res = -EBUSY; 4064 char *tmp; 4065 4066 mutex_lock(&floppy_mutex); 4067 mutex_lock(&open_lock); 4068 old_dev = drive_state[drive].fd_device; 4069 if (opened_bdev[drive] && opened_bdev[drive] != bdev) 4070 goto out2; 4071 4072 if (!drive_state[drive].fd_ref && (drive_params[drive].flags & FD_BROKEN_DCL)) { 4073 set_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags); 4074 set_bit(FD_VERIFY_BIT, &drive_state[drive].flags); 4075 } 4076 4077 drive_state[drive].fd_ref++; 4078 4079 opened_bdev[drive] = bdev; 4080 4081 res = -ENXIO; 4082 4083 if (!floppy_track_buffer) { 4084 /* if opening an ED drive, reserve a big buffer, 4085 * else reserve a small one */ 4086 if ((drive_params[drive].cmos == 6) || (drive_params[drive].cmos == 5)) 4087 try = 64; /* Only 48 actually useful */ 4088 else 4089 try = 32; /* Only 24 actually useful */ 4090 4091 tmp = (char *)fd_dma_mem_alloc(1024 * try); 4092 if (!tmp && !floppy_track_buffer) { 4093 try >>= 1; /* buffer only one side */ 4094 INFBOUND(try, 16); 4095 tmp = (char *)fd_dma_mem_alloc(1024 * try); 4096 } 4097 if (!tmp && !floppy_track_buffer) 4098 fallback_on_nodma_alloc(&tmp, 2048 * try); 4099 if (!tmp && !floppy_track_buffer) { 4100 DPRINT("Unable to allocate DMA memory\n"); 4101 goto out; 4102 } 4103 if (floppy_track_buffer) { 4104 if (tmp) 4105 fd_dma_mem_free((unsigned long)tmp, try * 1024); 4106 } else { 4107 buffer_min = buffer_max = -1; 4108 floppy_track_buffer = tmp; 4109 max_buffer_sectors = try; 4110 } 4111 } 4112 4113 new_dev = MINOR(bdev->bd_dev); 4114 drive_state[drive].fd_device = new_dev; 4115 set_capacity(disks[drive][ITYPE(new_dev)], floppy_sizes[new_dev]); 4116 if (old_dev != -1 && old_dev != new_dev) { 4117 if (buffer_drive == drive) 4118 buffer_track = -1; 4119 } 4120 4121 if (fdc_state[FDC(drive)].rawcmd == 1) 4122 fdc_state[FDC(drive)].rawcmd = 2; 4123 4124 if (mode & (FMODE_READ|FMODE_WRITE)) { > 4125 UDRS->last_checked = 0; 4126 clear_bit(FD_OPEN_SHOULD_FAIL_BIT, &drive_state[drive].flags); > 4127 check_disk_change(bdev); 4128 if (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags)) 4129 goto out; 4130 if (test_bit(FD_OPEN_SHOULD_FAIL_BIT, &drive_state[drive].flags)) 4131 goto out; 4132 } 4133 4134 res = -EROFS; 4135 4136 if ((mode & FMODE_WRITE) && 4137 !test_bit(FD_DISK_WRITABLE_BIT, &drive_state[drive].flags)) 4138 goto out; 4139 4140 mutex_unlock(&open_lock); 4141 mutex_unlock(&floppy_mutex); 4142 return 0; 4143 out: 4144 drive_state[drive].fd_ref--; 4145 4146 if (!drive_state[drive].fd_ref) 4147 opened_bdev[drive] = NULL; 4148 out2: 4149 mutex_unlock(&open_lock); 4150 mutex_unlock(&floppy_mutex); 4151 return res; 4152 } 4153 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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