[PATCH AUTOSEL 5.15 1/3] tool api fs: Correctly encode errno for read/write open failures

[PATCH AUTOSEL 5.15 1/3] tool api fs: Correctly encode errno for read/write open failures

[Sasha Levin]

From: Ian Rogers <irogers@google.com>

[ Upstream commit 05be17eed774aaf56f6b1e12714325ca3a266c04 ]

Switch from returning -1 to -errno so that callers can determine types
of failure.

Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paran Lee <p4ranlee@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Zixian Cai <fzczx123@gmail.com>
Cc: zhaimingbing <zhaimingbing@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20241118225345.889810-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/api/fs/fs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c
index 82f53d81a7a78..a0a6a907315f0 100644
--- a/tools/lib/api/fs/fs.c
+++ b/tools/lib/api/fs/fs.c
@@ -323,7 +323,7 @@ int filename__read_int(const char *filename, int *value)
 	int fd = open(filename, O_RDONLY), err = -1;
 
 	if (fd < 0)
-		return -1;
+		return -errno;
 
 	if (read(fd, line, sizeof(line)) > 0) {
 		*value = atoi(line);
@@ -341,7 +341,7 @@ static int filename__read_ull_base(const char *filename,
 	int fd = open(filename, O_RDONLY), err = -1;
 
 	if (fd < 0)
-		return -1;
+		return -errno;
 
 	if (read(fd, line, sizeof(line)) > 0) {
 		*value = strtoull(line, NULL, base);
@@ -428,7 +428,7 @@ int filename__write_int(const char *filename, int value)
 	char buf[64];
 
 	if (fd < 0)
-		return err;
+		return -errno;
 
 	sprintf(buf, "%d", value);
 	if (write(fd, buf, sizeof(buf)) == sizeof(buf))
-- 
2.39.5

[PATCH AUTOSEL 5.15 2/3] Input: allocate keycode for phone linking

[Sasha Levin]

From: Illia Ostapyshyn <illia@yshyn.com>

[ Upstream commit 1bebc7869c99d466f819dd2cffaef0edf7d7a035 ]

The F11 key on the new Lenovo Thinkpad T14 Gen 5, T16 Gen 3, and P14s
Gen 5 laptops includes a symbol showing a smartphone and a laptop
chained together.  According to the user manual, it starts the Microsoft
Phone Link software used to connect to Android/iOS devices and relay
messages/calls or sync data.

As there are no suitable keycodes for this action, introduce a new one.

Signed-off-by: Illia Ostapyshyn <illia@yshyn.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20241114173930.44983-2-illia@yshyn.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/input-event-codes.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index bed20a89c14c1..6128146bb133b 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -519,6 +519,7 @@
 #define KEY_NOTIFICATION_CENTER	0x1bc	/* Show/hide the notification center */
 #define KEY_PICKUP_PHONE	0x1bd	/* Answer incoming call */
 #define KEY_HANGUP_PHONE	0x1be	/* Decline incoming call */
+#define KEY_LINK_PHONE		0x1bf   /* AL Phone Syncing */
 
 #define KEY_DEL_EOL		0x1c0
 #define KEY_DEL_EOS		0x1c1
-- 
2.39.5

[PATCH AUTOSEL 5.15 3/3] platform/x86: acer-wmi: Ignore AC events

[Sasha Levin]

From: Armin Wolf <W_Armin@gmx.de>

[ Upstream commit f6bfa25c6665f8721421ea94fe506cc22f1d4b43 ]

On the Acer Swift SFG14-41, the events 8 - 1 and 8 - 0 are printed on
AC connect/disconnect. Ignore those events to avoid spamming the
kernel log with error messages.

Reported-by: Farhan Anwar <farhan.anwar8@gmail.com>
Closes: https://lore.kernel.org/platform-driver-x86/2ffb529d-e7c8-4026-a3b8-120c8e7afec8@gmail.com
Tested-by: Rayan Margham <rayanmargham4@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250119201723.11102-2-W_Armin@gmx.de
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/acer-wmi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 82516796a53b0..7ef80f517e76e 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -88,6 +88,7 @@ enum acer_wmi_event_ids {
 	WMID_HOTKEY_EVENT = 0x1,
 	WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
 	WMID_GAMING_TURBO_KEY_EVENT = 0x7,
+	WMID_AC_EVENT = 0x8,
 };
 
 static const struct key_entry acer_wmi_keymap[] __initconst = {
@@ -2067,6 +2068,9 @@ static void acer_wmi_notify(u32 value, void *context)
 		if (return_value.key_num == 0x4)
 			acer_toggle_turbo();
 		break;
+	case WMID_AC_EVENT:
+		/* We ignore AC events here */
+		break;
 	default:
 		pr_warn("Unknown function number - %d - %d\n",
 			return_value.function, return_value.key_num);
-- 
2.39.5