sys-kernel/linux-headers-4.10 doesn't install linux/dma-buf.h causing a compile issue with chromium (https://archives.gentoo.org/gentoo-dev/message/d3aa208c33a6d114e921874afbf74f68) Please consider backporting upstream https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2220fc1ab363e6fab1f321430d69be17a8b92bd7 , or doing a version bump as applicable. Pasting more details about the chromium issue: ../../ui/gfx/linux/client_native_pixmap_dmabuf.cc:39:27: fatal error: linux/dma-buf.h: No such file or directory #include <linux/dma-buf.h> This is the workaround I applied: <https://gitweb.gentoo.org/repo/gentoo.git/tree/www-client/chromium/files/chromium-dma-buf-r1.patch?id=f3d721fbb4127f17e836a1842cfdd2bf76f0d398> This is part of the chromium code in question: <https://cs.chromium.org/chromium/src/ui/gfx/linux/client_native_pixmap_dmabuf.cc?q=dma-buf.h+package:%5Echromium$&l=39&dr=C> #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0) #include <linux/types.h> struct local_dma_buf_sync { __u64 flags; }; #define LOCAL_DMA_BUF_SYNC_READ (1 << 0) #define LOCAL_DMA_BUF_SYNC_WRITE (2 << 0) #define LOCAL_DMA_BUF_SYNC_RW \ (LOCAL_DMA_BUF_SYNC_READ | LOCAL_DMA_BUF_SYNC_WRITE) #define LOCAL_DMA_BUF_SYNC_START (0 << 2) #define LOCAL_DMA_BUF_SYNC_END (1 << 2) #define LOCAL_DMA_BUF_BASE 'b' #define LOCAL_DMA_BUF_IOCTL_SYNC \ _IOW(LOCAL_DMA_BUF_BASE, 0, struct local_dma_buf_sync) #else #include <linux/dma-buf.h> #endif
As you might infer from the "#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)", the header was added in linux-4.6. If you intend to stabilize some newer version of linux-headers (maybe 4.9?), please backport to that version as well.
I've added sys-kernel/linux-headers-4.11 to the tree, but with KEYWORDS all removed until this can be carefully tested. Add a line to package.accept_keywords and test to see if that solves this particular issue, as my dev box runs headless, so I won't be making a test of chromium anytime soon. Commit: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f72ababac9f177d374f3e8e27f1e3f06ce04c444 As far as backporting goes...patches accepted. The patches for linux-headers are still tracked in CVS for the time being: https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo/src/patchsets/gentoo-headers/ I'll look into asking -infra to move those to git.
v4.13 is now stable. Do we care to keep this open?
i don't think we should backport
