nuttx/drivers/mmcsd
Ansh Rai 54b0066a69 libs/libc: Fix divide-by-zero in stat() with large filesystem block sizes
blksize_t is currently defined as int16_t, which overflows when a
filesystem reports a block size larger than 32767 bytes. This causes
st_blksize to become zero, leading to an integer divide-by-zero when
st_blocks is calculated in stat().

Widen blksize_t to int32_t to support larger filesystem block sizes.

Update nuttx_blksize_t in include/nuttx/fs/hostfs.h to keep it
consistent with include/sys/types.h.

struct geometry.geo_sectorsize (include/nuttx/fs/ioctl.h) is also
typed blksize_t, so every debug print of that field using a 16-bit
format specifier is updated to PRId32 to match the new width:
drivers/misc/ramdisk.c, drivers/mmcsd/mmcsd_spi.c, drivers/mtd/ftl.c,
fs/driver/fs_blockmerge.c, drivers/mtd/smart.c,
drivers/usbhost/usbhost_storage.c, drivers/mmcsd/mmcsd_sdio.c,
arch/arm/src/s32k1xx/s32k1xx_eeeprom.c,
arch/arm/src/lc823450/lc823450_mmcl.c.

Signed-off-by: Ansh Rai <anshrai331@gmail.com>
Signed-off-by: root <root@LAPTOP-9C7LKDC5.localdomain>
2026-07-16 23:37:22 +08:00
..
CMakeLists.txt drivers/mmcsd: Aligned Cmake with Make 2025-12-09 14:25:40 -03:00
Kconfig sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
Make.defs drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
mmcsd.h drivers/mmcsd: Remove eMMC partitions when !CONFIG_MMCSD_MMCSUPPORT 2026-06-02 15:14:38 -03:00
mmcsd_csd.h drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
mmcsd_debug.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
mmcsd_extcsd.h drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
mmcsd_procfs.c !include/fcntl.h: align open flags with Linux values 2026-06-30 13:43:44 +08:00
mmcsd_sdio.c libs/libc: Fix divide-by-zero in stat() with large filesystem block sizes 2026-07-16 23:37:22 +08:00
mmcsd_sdio.h drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
mmcsd_spi.c libs/libc: Fix divide-by-zero in stat() with large filesystem block sizes 2026-07-16 23:37:22 +08:00
mmcsd_spi.h drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
sdio.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00