Re: [PATCH 2/2] scsi: enable sector_size > PAGE_SIZE

From: Bart Van Assche
Date: Tue Dec 02 2025 - 19:30:44 EST


On 12/1/25 4:15 PM, sw.prabhu6@xxxxxxxxx wrote:
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index b2ab97be5db3..b5839e62d3bb 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -8459,13 +8459,8 @@ static int __init scsi_debug_init(void)
} else if (sdebug_ndelay > 0)
sdebug_jdelay = JDELAY_OVERRIDDEN;
- switch (sdebug_sector_size) {
- case 512:
- case 1024:
- case 2048:
- case 4096:
- break;
- default:
+ if (sdebug_sector_size < 512 || sdebug_sector_size > BLK_MAX_BLOCK_SIZE ||
+ !is_power_of_2(sdebug_sector_size)) {
pr_err("invalid sector_size %d\n", sdebug_sector_size);
return -EINVAL;
}
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index c3502fcba1bb..f2eac79d7263 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2889,10 +2889,8 @@ sd_read_capacity(struct scsi_disk *sdkp, struct queue_limits *lim,
"assuming 512.\n");
}
- if (sector_size != 512 &&
- sector_size != 1024 &&
- sector_size != 2048 &&
- sector_size != 4096) {
+ if (sector_size < 512 || sector_size > BLK_MAX_BLOCK_SIZE ||
+ !is_power_of_2(sector_size)) {
sd_printk(KERN_NOTICE, sdkp, "Unsupported sector size %d.\n",
sector_size);
/*

Please reorganize this patch series into one patch for the scsi_debug
driver and another patch for the sd driver.

Thanks,

Bart.