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authorNiklas Cassel <cassel@kernel.org>2026-09-16 15:00:32 +0200
committerNiklas Cassel <cassel@kernel.org>2026-09-16 16:18:00 +0200
commit8d836581f9b1f57ceaa2b47654754ef1260b410b (patch)
tree1dbd4d0dfb99c2e238356cbe947e5b0be3e3a571 /drivers/rtc/proc.c
downloadlinux-stable-8d836581f9b1f57ceaa2b47654754ef1260b410b.tar.gz
linux-stable-8d836581f9b1f57ceaa2b47654754ef1260b410b.zip
ata: libata-scsi: fix ata_dsm_trim_pages() kernel-docgrafted
make htmldocs fails with: Documentation/driver-api/libata:604: ./drivers/ata/libata-scsi.c:2301: ERROR: Unexpected indentation. [docutils] The Return: section of ata_dsm_trim_pages() ends its first sentence with a colon and continues with an indented bullet list. reStructuredText requires a blank line before an indented block, so docutils chokes on the list. Simply adding the missing blank line does not work either: Return: is a kernel-doc "special section", which is terminated by the first blank line, so the bullet list would end up in the Description section, detached from the sentence introducing it. Spell the two bounds out as prose instead, so that the Return: section stays self-contained. Documentation-only change. Fixes: e64e6b5dc867 ("ata: libata-scsi: scale DSM TRIM payload by MAX PAGES PER DSM COMMAND") Reported-by: Thomas Huth <thuth@redhat.com> Closes: https://lore.kernel.org/linux-ide/b0a0b8e8-cc4f-4c7b-8bc5-fee0712d405a@redhat.com/ Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Link: https://lore.kernel.org/r/20260916130031.29990-2-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org>
Diffstat (limited to 'drivers/rtc/proc.c')
-rw-r--r--drivers/rtc/proc.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/rtc/proc.c b/drivers/rtc/proc.c
new file mode 100644
index 000000000..cbcdbb19d
--- /dev/null
+++ b/drivers/rtc/proc.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RTC subsystem, proc interface
+ *
+ * Copyright (C) 2005-06 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on arch/arm/common/rtctime.c
+ */
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+#include "rtc-core.h"
+
+#define NAME_SIZE 10
+
+#if defined(CONFIG_RTC_HCTOSYS_DEVICE)
+static bool is_rtc_hctosys(struct rtc_device *rtc)
+{
+ int size;
+ char name[NAME_SIZE];
+
+ size = snprintf(name, NAME_SIZE, "rtc%d", rtc->id);
+ if (size >= NAME_SIZE)
+ return false;
+
+ return !strncmp(name, CONFIG_RTC_HCTOSYS_DEVICE, NAME_SIZE);
+}
+#else
+static bool is_rtc_hctosys(struct rtc_device *rtc)
+{
+ return (rtc->id == 0);
+}
+#endif
+
+static int rtc_proc_show(struct seq_file *seq, void *offset)
+{
+ int err;
+ struct rtc_device *rtc = seq->private;
+ const struct rtc_class_ops *ops = rtc->ops;
+ struct rtc_wkalrm alrm;
+ struct rtc_time tm;
+
+ err = rtc_read_time(rtc, &tm);
+ if (err == 0) {
+ seq_printf(seq,
+ "rtc_time\t: %ptRt\n"
+ "rtc_date\t: %ptRd\n",
+ &tm, &tm);
+ }
+
+ err = rtc_read_alarm(rtc, &alrm);
+ if (err == 0) {
+ seq_printf(seq, "alrm_time\t: %ptRt\n", &alrm.time);
+ seq_printf(seq, "alrm_date\t: %ptRd\n", &alrm.time);
+ seq_printf(seq, "alarm_IRQ\t: %s\n",
+ alrm.enabled ? "yes" : "no");
+ seq_printf(seq, "alrm_pending\t: %s\n",
+ alrm.pending ? "yes" : "no");
+ seq_printf(seq, "update IRQ enabled\t: %s\n",
+ (rtc->uie_rtctimer.enabled) ? "yes" : "no");
+ seq_printf(seq, "periodic IRQ enabled\t: %s\n",
+ (rtc->pie_enabled) ? "yes" : "no");
+ seq_printf(seq, "periodic IRQ frequency\t: %d\n",
+ rtc->irq_freq);
+ seq_printf(seq, "max user IRQ frequency\t: %d\n",
+ rtc->max_user_freq);
+ }
+
+ seq_printf(seq, "24hr\t\t: yes\n");
+
+ if (ops->proc)
+ ops->proc(rtc->dev.parent, seq);
+
+ return 0;
+}
+
+void rtc_proc_add_device(struct rtc_device *rtc)
+{
+ if (is_rtc_hctosys(rtc))
+ proc_create_single_data("driver/rtc", 0, NULL, rtc_proc_show,
+ rtc);
+}
+
+void rtc_proc_del_device(struct rtc_device *rtc)
+{
+ if (is_rtc_hctosys(rtc))
+ remove_proc_entry("driver/rtc", NULL);
+}