Changes in Makefile

b1992c37 - kbuild: use $(src) instead of $(srctree)/$(src) for source directory

Sat, 27 Apr 2024 14:55:02 +0000

kbuild: use $(src) instead of $(srctree)/$(src) for source directoryKbuild conventionally uses $(obj)/ for generated files, and $(src)/ forchecked-in source files. It is merely a convention without any functionaldifference. In fact, $(obj) and $(src) are exactly the same, as definedin scripts/Makefile.build: src := $(obj)When the kernel is built in a separate output directory, $(src) doesnot accurately reflect the source directory location. While Kbuildresolves this discrepancy by specifying VPATH=$(srctree) to search forsource files, it does not cover all cases. For example, when adding aheader search path for local headers, -I$(srctree)/$(src) is typicallypassed to the compiler.This introduces inconsistency between upstream and downstream Makefilesbecause $(src) is used instead of $(srctree)/$(src) for the latter.To address this inconsistency, this commit changes the semantics of$(src) so that it always points to the directory in the source tree.Going forward, the variables used in Makefiles will have the followingmeanings: $(obj) - directory in the object tree $(src) - directory in the source tree (changed by this commit) $(objtree) - the top of the kernel object tree $(srctree) - the top of the kernel source treeConsequently, $(srctree)/$(src) in upstream Makefiles need to be replacedwith $(src).Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/drivers/net/wireless/realtek/rtl818x/rtl8180/Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/net/wireless/realtek/rtl818x/rtl8180/Makefile

030b4367 - wireless: prefix header search paths with $(srctree)/

Fri, 25 Jan 2019 15:18:00 +0000

wireless: prefix header search paths with $(srctree)/Currently, the Kbuild core manipulates header search paths in a crazyway [1].To fix this mess, I want all Makefiles to add explicit $(srctree)/ tothe search paths in the srctree. Some Makefiles are already written inthat way, but not all. The goal of this work is to make the notationconsistent, and finally get rid of the gross hacks.Having whitespaces after -I does not matter since commit 48f6e3cf5bc6("kbuild: do not drop -I without parameter").I also removed one header search path in: drivers/net/wireless/broadcom/brcm80211/brcmutil/MakefileI was able to compile without it.[1]: https://patchwork.kernel.org/patch/9632347/Signed-off-by: Masahiro Yamada Acked-by: Luca Coelho Signed-off-by: Kalle Valo List of files: /linux-6.15/drivers/net/wireless/realtek/rtl818x/rtl8180/Makefile

f1d2b4d3 - rtlwifi: rtl818x: Move drivers into new realtek directory

Mon, 07 Sep 2015 20:59:16 +0000

rtlwifi: rtl818x: Move drivers into new realtek directoryNow that a new mac80211-based driver for Realtek devices has been submitted,it is time to reorganize the directories. Rather than having directoriesrtlwifi and rtl818x be in drivers/net/wireless/, they will now be indrivers/net/wireless/realtek/. This change simplifies the directorystructure, but does not result in any configuration changes that arevisable to the user.Signed-off-by: Larry Finger Signed-off-by: Kalle Valo List of files: /linux-6.15/drivers/net/wireless/realtek/rtl818x/rtl8180/Makefile