Attachment 211836 Details for Bug 236003 – v7.3

[patch] v7.3

intel.update.diff (text/plain), 23.57 KB, created by Jan Beich on 2020-02-22 15:17:58 UTC

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Creator: Jan Beich

Created: 2020-02-22 15:17:58 UTC

Size: 23.57 KB

patch

obsolete

>From 2fa70c8399e2053cdee5c4da19bf6057e8ccc174 Mon Sep 17 00:00:00 2001
>From: jbeich <jbeich@35697150-7ecd-e111-bb59-0022644237b5>
>Date: Sun, 23 Dec 2018 00:56:25 +0000
>Subject: [PATCH] x11-drivers/xf86-video-intel: update to 2.99.917.899
>
>- Fix MIT-SHM detection
>- Drop SNA/UXA options in favor of xorg.conf(5)
>- Add hyphen to output names for consistency with modesetting(4x)
>- Add UDEV option
>- Add "make test" support
>- Switch to upstream versioning scheme
>- Document all patches
>- Simplify and deprecate _WITH_GETLINE
>- Fix most style warnings
>
>Changes:	https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/compare/e5ff8e1828f9...f66d39544bb8
>PR:		236003
>Tested by:	swills, Taku YAMAMOTO, Alexandr Krivulya, JavaShin, Oleh Hushchenkov
>Approved by:	?
>---
> x11-drivers/xf86-video-intel/Makefile         |  49 ++++---
> x11-drivers/xf86-video-intel/distinfo         |   6 +-
> .../files/patch-benchmarks_dri3-swap.c        |  25 ++++
> .../xf86-video-intel/files/patch-hyphen       |  24 ++++
> .../files/patch-src_intel__device.c           |  17 +--
> .../files/patch-src_intel__list.h             | 133 ++++++++++++++++--
> .../files/patch-src_sna_kgem.c                |  12 --
> .../files/patch-src_sna_sna__threads.c        |  12 --
> .../files/patch-src_sna_sna__video.c          |  19 ---
> .../files/patch-test_present-speed.c          |  99 +++++++++++++
> 10 files changed, 305 insertions(+), 91 deletions(-)
> create mode 100644 x11-drivers/xf86-video-intel/files/patch-benchmarks_dri3-swap.c
> create mode 100644 x11-drivers/xf86-video-intel/files/patch-hyphen
> delete mode 100644 x11-drivers/xf86-video-intel/files/patch-src_sna_kgem.c
> delete mode 100644 x11-drivers/xf86-video-intel/files/patch-src_sna_sna__threads.c
> delete mode 100644 x11-drivers/xf86-video-intel/files/patch-src_sna_sna__video.c
> create mode 100644 x11-drivers/xf86-video-intel/files/patch-test_present-speed.c
>
>diff --git a/x11-drivers/xf86-video-intel/Makefile b/x11-drivers/xf86-video-intel/Makefile
>index a53c60693ef3..87c7c7072aeb 100644
>--- a/x11-drivers/xf86-video-intel/Makefile
>+++ b/x11-drivers/xf86-video-intel/Makefile
>@@ -2,42 +2,49 @@
> # $FreeBSD$
> 
> PORTNAME=	xf86-video-intel
>-PORTVERSION=	2.99.917.20181203
>-PORTREVISION=	1
>+DISTVERSION=	2.99.917-899
>+DISTVERSIONSUFFIX=	-g${GL_COMMIT:C/(.{12}).*/\1/}
>+PORTEPOCH=	1
> CATEGORIES=	x11-drivers
> 
> MAINTAINER=	x11@FreeBSD.org
>-COMMENT=	Driver for Intel integrated graphics chipsets
>+COMMENT=	X.Org legacy driver for Intel integrated graphics chipsets
> 
> LICENSE=	MIT	# various
> LICENSE_FILE=	${WRKSRC}/COPYING
> 
> ONLY_FOR_ARCHS=	amd64 i386
>-ONLY_FOR_ARCHS_REASON=	Intel integrated GPU only exists in Intel x86 processors/chipsets
>+ONLY_FOR_ARCHS_REASON=	Only Intel integrated GPUs on x86 are supported
> 
> LIB_DEPENDS=	libxcb-util.so:x11/xcb-util \
> 		libdrm.so:graphics/libdrm
> 
>-USES=		cpe gl xorg xorg-cat:driver
>+USES=		cpe gl localbase xorg xorg-cat:driver
>+CPE_VENDOR=	x
> USE_GITLAB=	yes
>-GL_COMMIT=	e5ff8e1828f97891c819c919d7115c6e18b2eb1f
>+GL_COMMIT=	f66d39544bb8339130c96d282a80f87ca1606caf
> USE_GL=		gl
> USE_XORG=	pciaccess pixman x11 xcb xext xrender xv xvmc
> USE_LDCONFIG=	yes
>-
>-CPE_VENDOR=	x
>-
>-OPTIONS_SINGLE=	ACCEL
>-OPTIONS_SINGLE_ACCEL=	SNA UXA
>-OPTIONS_DEFAULT=	UXA
>-
>-ACCEL_DESC=	Default AccelMethod (if not specified in xorg.conf)
>-SNA_DESC=	SandyBridge's New Acceleration
>-UXA_DESC=	Unified Acceleration Architecture
>-
>-CONFIGURE_ARGS+=	--disable-udev
>-
>-SNA_CONFIGURE_ON=	--with-default-accel=sna
>-UXA_CONFIGURE_ON=	--with-default-accel=uxa
>+CONFIGURE_ENV=	ac_cv_header_sys_sysinfo_h=no # XXX ports/242236
>+CONFIGURE_ARGS=	--with-builderstring="${DISTVERSIONFULL}"
>+TEST_TARGET=	check
>+
>+# XXX bug 214593: SNA crashes on pre-SandyBridge hardware
>+CONFIGURE_ARGS+=--with-default-accel=uxa
>+# XXX Remove after FreeBSD 11 EOL
>+CPPFLAGS+=	-D_WITH_GETLINE
>+
>+OPTIONS_DEFINE=	UDEV
>+OPTIONS_DEFAULT=UDEV
>+
>+UDEV_DESC=		udev-based monitor hotplug detection
>+UDEV_LIB_DEPENDS=	libudev.so:devel/libudev-devd
>+UDEV_CONFIGURE_ENABLE=	udev
>+
>+post-patch:
>+.if ${CONFIGURE_ARGS:M--with-default-accel=uxa}
>+	@${REINPLACE_CMD} '/^Default/s/SNA/UXA/' ${WRKSRC}/man/intel.man
>+.endif
> 
> .include <bsd.port.mk>
>diff --git a/x11-drivers/xf86-video-intel/distinfo b/x11-drivers/xf86-video-intel/distinfo
>index d1ed106cd013..6a69d856bd8c 100644
>--- a/x11-drivers/xf86-video-intel/distinfo
>+++ b/x11-drivers/xf86-video-intel/distinfo
>@@ -1,3 +1,3 @@
>-TIMESTAMP = 1561472772
>-SHA256 (xorg/driver/driver-xf86-video-intel-e5ff8e1828f97891c819c919d7115c6e18b2eb1f_GL0.tar.gz) = cbb6a10695b9e8b41fef1bafe5c4d9ddf710acb1ccba8e141378493bacda982e
>-SIZE (xorg/driver/driver-xf86-video-intel-e5ff8e1828f97891c819c919d7115c6e18b2eb1f_GL0.tar.gz) = 1693563
>+TIMESTAMP = 1575930406
>+SHA256 (xorg/driver/driver-xf86-video-intel-f66d39544bb8339130c96d282a80f87ca1606caf_GL0.tar.gz) = f4f7b8ade937167ccdf2572b2efe766fb06833afebee87212678c28d18e8330d
>+SIZE (xorg/driver/driver-xf86-video-intel-f66d39544bb8339130c96d282a80f87ca1606caf_GL0.tar.gz) = 1695049
>diff --git a/x11-drivers/xf86-video-intel/files/patch-benchmarks_dri3-swap.c b/x11-drivers/xf86-video-intel/files/patch-benchmarks_dri3-swap.c
>new file mode 100644
>index 000000000000..aa73975103ff
>--- /dev/null
>+++ b/x11-drivers/xf86-video-intel/files/patch-benchmarks_dri3-swap.c
>@@ -0,0 +1,25 @@
>+dri3-swap.c:237:24: error: variable 'tmp' is uninitialized when used here [-Werror,-Wuninitialized]
>+                        list_for_each_entry(tmp, &mru, link) {
>+                                            ^~~
>+dri3-swap.c:117:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+dri3-swap.c:114:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+dri3-swap.c:236:22: note: initialize the variable 'tmp' to silence this warning
>+                        struct buffer *tmp, *b = NULL;
>+                                          ^
>+                                           = NULL
>+
>+--- benchmarks/dri3-swap.c.orig	2019-02-21 22:26:50 UTC
>++++ benchmarks/dri3-swap.c
>+@@ -233,7 +233,7 @@ static void run(Display *dpy, Window win)
>+ 	clock_gettime(CLOCK_MONOTONIC, &start);
>+ 	do {
>+ 		for (n = 0; n < 1000; n++) {
>+-			struct buffer *tmp, *b = NULL;
>++			struct buffer *tmp = NULL, *b = NULL;
>+ 			list_for_each_entry(tmp, &mru, link) {
>+ 				if (!tmp->busy) {
>+ 					b = tmp;
>diff --git a/x11-drivers/xf86-video-intel/files/patch-hyphen b/x11-drivers/xf86-video-intel/files/patch-hyphen
>new file mode 100644
>index 000000000000..3ea709848058
>--- /dev/null
>+++ b/x11-drivers/xf86-video-intel/files/patch-hyphen
>@@ -0,0 +1,24 @@
>+Add hyphen to RANDR output names for consistency with modesetting(4x)
>+
>+--- src/sna/sna_display.c.orig	2018-12-03 09:01:25 UTC
>++++ src/sna/sna_display.c
>+@@ -5126,7 +5126,7 @@ sna_output_add(struct sna *sna, unsigned id, unsigned 
>+ 		output_name = output_names[compat_conn.conn.connector_type];
>+ 	else
>+ 		output_name = "UNKNOWN";
>+-	len = snprintf(name, 32, "%s%d", output_name, compat_conn.conn.connector_type_id);
>++	len = snprintf(name, 32, "%s-%d", output_name, compat_conn.conn.connector_type_id);
>+ 	if (output_ignored(scrn, name))
>+ 		return 0;
>+ 
>+--- src/uxa/intel_display.c.orig	2018-12-03 09:01:25 UTC
>++++ src/uxa/intel_display.c
>+@@ -1484,7 +1484,7 @@ drmmode_create_name(ScrnInfoPtr pScrn, drmModeConnecto
>+ 		else
>+ 			output_name = "UNKNOWN";
>+ 
>+-		snprintf(name, 32, "%s%d",
>++		snprintf(name, 32, "%s-%d",
>+ 			 output_name, koutput->connector_type_id);
>+ 	}
>+ }
>diff --git a/x11-drivers/xf86-video-intel/files/patch-src_intel__device.c b/x11-drivers/xf86-video-intel/files/patch-src_intel__device.c
>index 8d81301780d7..03b9df8e74b7 100644
>--- a/x11-drivers/xf86-video-intel/files/patch-src_intel__device.c
>+++ b/x11-drivers/xf86-video-intel/files/patch-src_intel__device.c
>@@ -1,16 +1,9 @@
>---- src/intel_device.c.orig	2017-02-28 20:52:19 UTC
>+i915 requires KMS, so FreeBSD uses suffix to distinguish drm1 and drm2 drivers.
>+drm-kmod kept the same name at the cost of conflict with in-base drm2.
>+
>+--- src/intel_device.c.orig	2019-02-21 22:26:50 UTC
> +++ src/intel_device.c
>-@@ -28,6 +28,9 @@
>- #include "config.h"
>- #endif
>- 
>-+#define _WITH_GETLINE	/* to expose getline() in stdio.h on FreeBSD */
>-+#include <stdio.h>	/* for getline() */
>-+
>- #include <sys/types.h>
>- #include <sys/stat.h>
>- #include <assert.h>
>-@@ -204,6 +207,7 @@ static inline struct intel_device *intel
>+@@ -204,6 +204,7 @@ static inline struct intel_device *intel_device(ScrnIn
>  }
>  
>  static const char *kernel_module_names[] ={
>diff --git a/x11-drivers/xf86-video-intel/files/patch-src_intel__list.h b/x11-drivers/xf86-video-intel/files/patch-src_intel__list.h
>index 56fc9fe3c92d..d2f18cc8c9ba 100644
>--- a/x11-drivers/xf86-video-intel/files/patch-src_intel__list.h
>+++ b/x11-drivers/xf86-video-intel/files/patch-src_intel__list.h
>@@ -1,15 +1,124 @@
>---- src/intel_list.h.orig	2017-02-28 20:52:19 UTC
>+kgem.c:2864:22: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry(bo, &kgem->snoop, list) {
>+                            ^~
>+../../src/intel_list.h:328:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:2849:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo, *first = NULL;
>+                          ^
>+                           = NULL
>+kgem.c:3118:27: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry_safe(bo, next, &kgem->flushing, request) {
>+                                 ^~
>+../../src/intel_list.h:345:45: note: expanded from macro 'list_for_each_entry_safe'
>+    for (pos = __container_of((head)->next, pos, member),               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:3115:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo, *next;
>+                          ^
>+                           = NULL
>+kgem.c:3429:27: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry_safe(bo, next, &rq->buffers, request) {
>+                                 ^~
>+../../src/intel_list.h:345:45: note: expanded from macro 'list_for_each_entry_safe'
>+    for (pos = __container_of((head)->next, pos, member),               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:3425:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo, *next;
>+                          ^
>+                           = NULL
>+kgem.c:3541:27: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry_safe(bo, next, &kgem->batch_buffers, base.list) {
>+                                 ^~
>+../../src/intel_list.h:345:45: note: expanded from macro 'list_for_each_entry_safe'
>+    for (pos = __container_of((head)->next, pos, member),               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:3539:24: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_buffer *bo, *next;
>+                              ^
>+                               = NULL
>+kgem.c:3930:22: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry(bo, list, list) {
>+                            ^~
>+../../src/intel_list.h:328:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:3928:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo;
>+                          ^
>+                           = NULL
>+kgem.c:4670:23: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+                list_for_each_entry(bo, cache, vma) {
>+                                    ^~
>+../../src/intel_list.h:328:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:4576:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo, *first = NULL;
>+                          ^
>+                           = NULL
>+kgem.c:5411:31: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+                list_for_each_entry_reverse(bo, &kgem->scanout, list) {
>+                                            ^~
>+../../src/intel_list.h:333:45: note: expanded from macro 'list_for_each_entry_reverse'
>+    for (pos = __container_of((head)->prev, pos, member);               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:5380:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo;
>+                          ^
>+                           = NULL
>+kgem.c:7225:22: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry(bo, buffers, request) {
>+                            ^~
>+../../src/intel_list.h:328:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:7223:20: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_bo *bo;
>+                          ^
>+                           = NULL
>+kgem.c:7517:22: error: variable 'bo' is uninitialized when used here [-Werror,-Wuninitialized]
>+        list_for_each_entry(bo, &kgem->batch_buffers, base.list) {
>+                            ^~
>+../../src/intel_list.h:328:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+../../src/intel_list.h:309:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+kgem.c:7503:24: note: initialize the variable 'bo' to silence this warning
>+        struct kgem_buffer *bo;
>+                              ^
>+                               = NULL
>+
>+--- src/intel_list.h.orig	2019-02-21 22:26:50 UTC
> +++ src/intel_list.h
>-@@ -305,8 +305,6 @@ list_is_empty(const struct list *head)
>- #define list_last_entry(ptr, type, member) \
>-     list_entry((ptr)->prev, type, member)
>- 
>--#define __container_of(ptr, sample, member)				\
>--    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>- /**
>-  * Loop through the list given by head and set pos to struct in the list.
>-  *
>-@@ -325,12 +323,12 @@ list_is_empty(const struct list *head)
>+@@ -325,12 +325,12 @@ list_is_empty(const struct list *head)
>   *
>   */
>  #define list_for_each_entry(pos, head, member)				\
>@@ -25,7 +134,7 @@
>  	 &pos->member != (head);					\
>  	 pos = __container_of(pos->member.prev, pos, member))
>  
>-@@ -342,7 +340,7 @@ list_is_empty(const struct list *head)
>+@@ -342,7 +342,7 @@ list_is_empty(const struct list *head)
>   * See list_for_each_entry for more details.
>   */
>  #define list_for_each_entry_safe(pos, tmp, head, member)		\
>diff --git a/x11-drivers/xf86-video-intel/files/patch-src_sna_kgem.c b/x11-drivers/xf86-video-intel/files/patch-src_sna_kgem.c
>deleted file mode 100644
>index e3f23cdaa2d0..000000000000
>--- a/x11-drivers/xf86-video-intel/files/patch-src_sna_kgem.c
>+++ /dev/null
>@@ -1,12 +0,0 @@
>---- src/sna/kgem.c.orig	2017-02-28 20:52:19 UTC
>-+++ src/sna/kgem.c
>-@@ -29,6 +29,9 @@
>- #include "config.h"
>- #endif
>- 
>-+#define _WITH_GETLINE	/* to expose getline() in stdio.h on FreeBSD */
>-+#include <stdio.h>	/* for getline() */
>-+
>- #include "sna.h"
>- #include "sna_reg.h"
>- 
>diff --git a/x11-drivers/xf86-video-intel/files/patch-src_sna_sna__threads.c b/x11-drivers/xf86-video-intel/files/patch-src_sna_sna__threads.c
>deleted file mode 100644
>index 68cde27286f7..000000000000
>--- a/x11-drivers/xf86-video-intel/files/patch-src_sna_sna__threads.c
>+++ /dev/null
>@@ -1,12 +0,0 @@
>---- src/sna/sna_threads.c.orig	2017-02-28 20:52:19 UTC
>-+++ src/sna/sna_threads.c
>-@@ -29,6 +29,9 @@
>- #include "config.h"
>- #endif
>- 
>-+#define _WITH_GETLINE	/* to expose getline() in stdio.h on FreeBSD */
>-+#include <stdio.h>	/* for getline() */
>-+
>- #include "sna.h"
>- 
>- #include <unistd.h>
>diff --git a/x11-drivers/xf86-video-intel/files/patch-src_sna_sna__video.c b/x11-drivers/xf86-video-intel/files/patch-src_sna_sna__video.c
>deleted file mode 100644
>index a9d51d1d717e..000000000000
>--- a/x11-drivers/xf86-video-intel/files/patch-src_sna_sna__video.c
>+++ /dev/null
>@@ -1,19 +0,0 @@
>-sna_video.c:62:10: fatal error: 'byteswap.h' file not found
>-#include <byteswap.h>
>-         ^~~~~~~~~~~~
>-
>---- src/sna/sna_video.c.orig	2018-12-03 09:01:25 UTC
>-+++ src/sna/sna_video.c
>-@@ -59,7 +59,12 @@
>- #include "intel_options.h"
>- 
>- #include <xf86xv.h>
>-+#if defined(__linux__) || defined(__GLIBC__)
>- #include <byteswap.h>
>-+#else
>-+#include <sys/endian.h>
>-+#define bswap_32 bswap32
>-+#endif
>- 
>- #ifdef SNA_XVMC
>- #define _SNA_XVMC_SERVER_
>diff --git a/x11-drivers/xf86-video-intel/files/patch-test_present-speed.c b/x11-drivers/xf86-video-intel/files/patch-test_present-speed.c
>new file mode 100644
>index 000000000000..f35735bc9d9a
>--- /dev/null
>+++ b/x11-drivers/xf86-video-intel/files/patch-test_present-speed.c
>@@ -0,0 +1,99 @@
>+present-speed.c:317:23: error: variable 'b' is uninitialized when used here [-Werror,-Wuninitialized]
>+                list_for_each_entry(b, &mru, link)
>+                                    ^
>+present-speed.c:115:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+present-speed.c:112:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+present-speed.c:297:19: note: initialize the variable 'b' to silence this warning
>+                struct buffer *b;
>+                                ^
>+                                 = NULL
>+present-speed.c:229:19: error: variable 'tmp' is used uninitialized whenever its declaration is reached
>+      [-Werror,-Wsometimes-uninitialized]
>+                        struct buffer *tmp, *b = NULL;
>+                        ~~~~~~~~~~~~~~~^~~
>+present-speed.c:231:24: note: uninitialized use occurs here
>+                        list_for_each_entry(tmp, &mru, link) {
>+                                            ^~~
>+present-speed.c:115:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+present-speed.c:112:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+present-speed.c:229:22: note: initialize the variable 'tmp' to silence this warning
>+                        struct buffer *tmp, *b = NULL;
>+                                          ^
>+                                           = NULL
>+present-speed.c:557:24: error: variable 'b' is uninitialized when used here [-Werror,-Wuninitialized]
>+                        list_for_each_entry(b, &pp[i].mru, link)
>+                                            ^
>+present-speed.c:115:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+present-speed.c:112:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+present-speed.c:537:20: note: initialize the variable 'b' to silence this warning
>+                        struct buffer *b;
>+                                        ^
>+                                         = NULL
>+present-speed.c:467:19: error: variable 'tmp' is used uninitialized whenever its declaration is reached
>+      [-Werror,-Wsometimes-uninitialized]
>+                        struct buffer *tmp, *b = NULL;
>+                        ~~~~~~~~~~~~~~~^~~
>+present-speed.c:469:24: note: uninitialized use occurs here
>+                        list_for_each_entry(tmp, &pp[i].mru, link) {
>+                                            ^~~
>+present-speed.c:115:45: note: expanded from macro 'list_for_each_entry'
>+    for (pos = __container_of((head)->next, pos, member);               \
>+                                            ^~~
>+present-speed.c:112:41: note: expanded from macro '__container_of'
>+    (void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
>+                                        ^~~~~~
>+present-speed.c:467:22: note: initialize the variable 'tmp' to silence this warning
>+                        struct buffer *tmp, *b = NULL;
>+                                          ^
>+                                           = NULL
>+
>+--- test/present-speed.c.orig	2019-02-21 22:26:50 UTC
>++++ test/present-speed.c
>+@@ -226,7 +226,7 @@ static void run(Display *dpy, Window win, const char *
>+ 	clock_gettime(CLOCK_MONOTONIC, &start);
>+ 	do {
>+ 		for (n = 0; n < 1000; n++) {
>+-			struct buffer *tmp, *b = NULL;
>++			struct buffer *tmp = NULL, *b = NULL;
>+ retry:
>+ 			list_for_each_entry(tmp, &mru, link) {
>+ 				if (tmp->fence.xid)
>+@@ -294,7 +294,7 @@ retry:
>+ 	} while (end.tv_sec < start.tv_sec + 10);
>+ 
>+ 	if (options & DRI3) {
>+-		struct buffer *b;
>++		struct buffer *b = NULL;
>+ 		XID pixmap;
>+ 
>+ 		pixmap = xcb_generate_id(c);
>+@@ -464,7 +464,7 @@ static void perpixel(Display *dpy,
>+ 	clock_gettime(CLOCK_MONOTONIC, &start);
>+ 	do {
>+ 		for (i = 0; i < sz; i++) {
>+-			struct buffer *tmp, *b = NULL;
>++			struct buffer *tmp = NULL, *b = NULL;
>+ retry:
>+ 			list_for_each_entry(tmp, &pp[i].mru, link) {
>+ 				if (tmp->fence.xid)
>+@@ -534,7 +534,7 @@ retry:
>+ 	for (i = 0; i < sz; i++) {
>+ 		if (options & DRI3) {
>+ 			int depth = DefaultDepth(dpy, DefaultScreen(dpy));
>+-			struct buffer *b;
>++			struct buffer *b = NULL;
>+ 			XID pixmap;
>+ 
>+ 			pixmap = xcb_generate_id(c);

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Attachments on bug 236003: 202331 | 202533 | 205509 | 206005 | 206160 | 207727 | 207959 | 208705 | 208834 | 209362 | 209443 | 209444 | 209459 | 211645 | 211836 | 213793 | 215191 | 215591 | 215792