diff --git a/src/gallium/frontends/dri/dri_drawable.c b/src/gallium/frontends/dri/dri_drawable.c
index b219caefa60..2efcb633985 100644
--- a/src/gallium/frontends/dri/dri_drawable.c
+++ b/src/gallium/frontends/dri/dri_drawable.c
@@ -311,12 +311,6 @@ dri_set_tex_buffer2(struct dri_context *ctx, GLint target,
    }
 }
 
-const __DRItexBufferExtension driTexBufferExtension = {
-   .base = { __DRI_TEX_BUFFER, 2 },
-
-   .setTexBuffer2      = dri_set_tex_buffer2,
-};
-
 /**
  * Get the format and binding of an attachment.
  */
diff --git a/src/gallium/frontends/dri/dri_drawable.h b/src/gallium/frontends/dri/dri_drawable.h
index 1d27771c35f..4605c8a6b31 100644
--- a/src/gallium/frontends/dri/dri_drawable.h
+++ b/src/gallium/frontends/dri/dri_drawable.h
@@ -155,8 +155,6 @@ dri_flush(struct dri_context *ctx,
 void
 dri_flush_drawable(struct dri_drawable *dPriv);
 
-extern const __DRItexBufferExtension driTexBufferExtension;
-
 void
 drisw_update_tex_buffer(struct dri_drawable *drawable,
                         struct dri_context *ctx,
diff --git a/src/gallium/include/mesa_interface.h b/src/gallium/include/mesa_interface.h
index 598681c7de0..cd97dd93374 100644
--- a/src/gallium/include/mesa_interface.h
+++ b/src/gallium/include/mesa_interface.h
@@ -75,25 +75,6 @@ typedef struct {
 #define __DRI_TEXTURE_FORMAT_RGB         0x20D9
 #define __DRI_TEXTURE_FORMAT_RGBA        0x20DA
 
-#define __DRI_TEX_BUFFER "DRI_TexBuffer"
-typedef struct {
-    __DRIextension base;
-
-    /**
-     * Method to override base texture image with the contents of a
-     * struct dri_drawable, including the required texture format attribute.
-     *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.  Used by the X server since
-     * 2011.
-     *
-     * \since 2
-     */
-    void (*setTexBuffer2)(struct dri_context *pDRICtx,
-			  int target,
-			  int format,
-			  struct dri_drawable *pDraw);
-} __DRItexBufferExtension;
-
 /**
  * Used by drivers that implement DRI2.  Version 3 is used by the X server.
  */