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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/scsi/scsi_debugfs.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'drivers/scsi/scsi_debugfs.c')
-rw-r--r--drivers/scsi/scsi_debugfs.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_debugfs.c b/drivers/scsi/scsi_debugfs.c
new file mode 100644
index 000000000..eb52e39f3
--- /dev/null
+++ b/drivers/scsi/scsi_debugfs.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bitops.h>
+#include <linux/cleanup.h>
+#include <linux/seq_file.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_host.h>
+#include "scsi_debugfs.h"
+
+#define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #name
+static const char *const scsi_cmd_flags[] = {
+ SCSI_CMD_FLAG_NAME(TAGGED),
+ SCSI_CMD_FLAG_NAME(INITIALIZED),
+ SCSI_CMD_FLAG_NAME(LAST),
+};
+#undef SCSI_CMD_FLAG_NAME
+
+static int scsi_flags_show(struct seq_file *m, const unsigned long flags,
+ const char *const *flag_name, int flag_name_count)
+{
+ bool sep = false;
+ int i;
+
+ for_each_set_bit(i, &flags, BITS_PER_LONG) {
+ if (sep)
+ seq_puts(m, "|");
+ sep = true;
+ if (i < flag_name_count && flag_name[i])
+ seq_puts(m, flag_name[i]);
+ else
+ seq_printf(m, "%d", i);
+ }
+ return 0;
+}
+
+static const char *scsi_cmd_list_info(struct scsi_cmnd *cmd)
+{
+ struct Scsi_Host *shost = cmd->device->host;
+ struct scsi_cmnd *cmd2;
+
+ guard(spinlock_irq)(shost->host_lock);
+
+ list_for_each_entry(cmd2, &shost->eh_abort_list, eh_entry)
+ if (cmd == cmd2)
+ return "on eh_abort_list";
+
+ list_for_each_entry(cmd2, &shost->eh_cmd_q, eh_entry)
+ if (cmd == cmd2)
+ return "on eh_cmd_q";
+
+ return NULL;
+}
+
+void scsi_show_rq(struct seq_file *m, struct request *rq)
+{
+ struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
+ int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc);
+ int timeout_ms = jiffies_to_msecs(rq->timeout);
+ char buf[80] = "(?)";
+
+ if (cmd->flags & SCMD_INITIALIZED) {
+ const char *list_info = scsi_cmd_list_info(cmd);
+
+ __scsi_format_command(buf, sizeof(buf), cmd->cmnd, cmd->cmd_len);
+ seq_printf(m, ", .cmd=%s, .retries=%d, .allowed=%d, .result = %#x%s%s",
+ buf, cmd->retries, cmd->allowed, cmd->result,
+ list_info ? ", " : "", list_info ? : "");
+ seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago",
+ timeout_ms / 1000, timeout_ms % 1000,
+ alloc_ms / 1000, alloc_ms % 1000);
+ }
+ seq_printf(m, ", .flags=");
+ scsi_flags_show(m, cmd->flags, scsi_cmd_flags,
+ ARRAY_SIZE(scsi_cmd_flags));
+}