From 7085a655b8d665b6314e8dab2f803bac0aea04ec Mon Sep 17 00:00:00 2001 From: Julien Thierry Date: Wed, 6 May 2020 14:30:57 +0100 Subject: [PATCH] Symbol version change This change causes: 1) Some exported symbols in drivers/base/core.c to see their CRCs change. 2) Changes usb_get_dev() referencing a get_device() whose CRC has changed, causing the symbol and the new CRC to be included in the __version section of the final module. This makes the final module unloadable for the target kernel. See "Exported symbol versioning" of the patch author guide for more detail. --- drivers/base/core.c | 2 ++ drivers/usb/core/usb.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index df3e1a44707a..15c9d6e2e1e0 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -29,6 +29,8 @@ #include "base.h" #include "power/power.h" +#include + #ifdef CONFIG_SYSFS_DEPRECATED #ifdef CONFIG_SYSFS_DEPRECATED_V2 long sysfs_deprecated = 1; diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 623be3174fb3..4ddd74ae0bb9 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -685,6 +685,8 @@ EXPORT_SYMBOL_GPL(usb_alloc_dev); */ struct usb_device *usb_get_dev(struct usb_device *dev) { + barrier(); + if (dev) get_device(&dev->dev); return dev; -- 2.21.3