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/broadcom/brcm80211/brcmsmac/Makefile

c68115fc - brcmsmac: rework LED dependencies

Sat, 04 Dec 2021 17:38:34 +0000

brcmsmac: rework LED dependenciesThis is now the only driver that selects the LEDS_CLASS framework,which is normally user-selectable. While it doesn't strictly causea bug, rework the Kconfig logic to be more consistent with whatother drivers do, and only enable LED support in brcmsmac if thedependencies are all there, rather than using 'select' to enablewhat it needs.Signed-off-by: Arnd Bergmann Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20211204173848.873293-2-arnd@kernel.org List of files: /linux-6.15/drivers/net/wireless/broadcom/brcm80211/brcmsmac/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/broadcom/brcm80211/brcmsmac/Makefile

6bdf1e0e - Makefile: drop -D__CHECK_ENDIAN__ from cflags

Thu, 15 Dec 2016 02:07:46 +0000

Makefile: drop -D__CHECK_ENDIAN__ from cflagsThat's the default now, no need for makefiles to set it.Signed-off-by: Michael S. Tsirkin Acked-by: Kalle Valo Acked-by: Marcel Holtmann Acked-by: Marc Kleine-Budde Acked-by: Greg Kroah-Hartman Acked-by: Arend van Spriel List of files: /linux-6.15/drivers/net/wireless/broadcom/brcm80211/brcmsmac/Makefile

05491d2c - brcm80211: move under broadcom vendor directory

Tue, 17 Nov 2015 17:52:05 +0000

brcm80211: move under broadcom vendor directoryPart of reorganising wireless drivers directory and Kconfig. Note that I had toedit Makefiles from subdirectories to use the new location.Signed-off-by: Kalle Valo List of files: /linux-6.15/drivers/net/wireless/broadcom/brcm80211/brcmsmac/Makefile