summaryrefslogtreecommitdiff
path: root/lib/linux_compat.c
AgeCommit message (Collapse)Author
2023-12-21lib: Remove <common.h> inclusion from these filesTom Rini
After some header file cleanups to add missing include files, remove common.h from all files in the lib directory. This primarily means just dropping the line but in a few cases we need to add in other header files now. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-05-18common: Drop net.h from common headerSimon Glass
Move this header out of the common header. Network support is used in quite a few places but it still does not warrant blanket inclusion. Note that this net.h header itself has quite a lot in it. It could be split into the driver-mode support, functions, structures, checksumming, etc. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05dm: core: Create a new header file for 'compat' featuresSimon Glass
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-12-06linux_compat: move kmemdup() from ubifs.c to linux_compat.cAKASHI Takahiro
linux_compat.c is the best place for kmemdup(), which is currenly used only in ubifs.c, but will also be used when other kernel files (in my case, lib/crypto/x509_cert_parser.c and pkcs7_parser.c) will be imported. So just move it. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-31linux_compat: fix potential NULL pointer accessMarek Szyprowski
malloc_cache_aligned() might return zero, so fix potential NULL pointer access if __GFP_ZERO flag is set. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Ralph Siemsen <ralph.siemsen@linaro.org>
2018-08-31Make kmalloc'ed memory really DMA-safeMasahiro Yamada
In Linux, the memory returned by kmalloc() is DMA-capable. However, it is not true in U-Boot. At a glance, kmalloc() in U-Boot returns address aligned with ARCH_DMA_MINALIGN. However, it never pads the allocated memory. This half-way house is completely useless because calling kmalloc() and malloc() in this order causes a cache sharing problem. Change the implementation to call malloc_cache_aligned(), which allocates really DMA-capable memory. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-07-22linux_compat: handle __GFP_ZERO in kmalloc()Masahiro Yamada
Currently, kzalloc() returns zero-filled memory, while kmalloc() simply ignores the second argument and never fills the memory area with zeros. I want kmalloc(size, __GFP_ZERO) to behave as kzalloc() does, which will make it easier to add more memory allocator variants. With the introduction of __GFP_ZERO flag, going forward, kzmalloc() variants can fall back to kmalloc() enabling the __GFP_ZERO flag. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-07-22linux_compat: move vzalloc() to header file as an inline functionMasahiro Yamada
The vzalloc(size) is equivalent to kzalloc(size, 0). Move it to include/linux/compat.h as an inline function in order to avoid the function call overhead. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
2014-08-25lib, linux: move linux specific defines to linux/compat.hHeiko Schocher
- move linux specific defines from usb and video code into linux/compat.h - move common linux specific defines from include/ubi_uboot.h to linux/compat.h - add for new mtd/ubi/ubifs sync new needed linux specific defines to linux/compat.h Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Anatolij Gustschin <agust@denx.de> [trini: Add spin_lock_irqsave/spin_unlock_irqrestore dummies from usb/lin_gadet_compat.h] Signed-off-by: Tom Rini <trini@ti.com>