nfp_cpp_area_release(9)
π nfp_cpp_area_release(9) β from the Kernel API Manual, bestie
okay so real talk, this one's a little baby function but it's important, so pay attention. it lives in the Kernel API Manual (section 9, kernel messages, iykyk) and its whole personality is: "girl, you're done here, let go."
β¨ NAME β¨
nfp_cpp_area_release β release a locked down CPP area
like, un-clutch it. release the grip. let it breathe. π¦
πΈ SYNOPSIS πΈ
void nfp_cpp_area_release (struct nfp_cpp_area *area );
no return value, she just does it and leaves. main character energy fr fr.
π ARGUMENTS π
areaβ the CPP area handle π that's it, that's the whole argument. it's the handle to the area you're about to release, and yes you need it, don't lose it.
π₯ DESCRIPTION π₯
Releases a previously locked down CPP area.
that's the whole thing, bestie β it's the "you may now exit the ride" of CPP areas. you locked it down earlier (with nfp_cpp_area_acquire or nfp_cpp_area_acquire_nonblocking, if we're being specific), and now you're releasing it. no cap, that's it. β¨
π SEE ALSO π
the whole friend group, literally all of them, in the order they showed up to the party:
struct nfp_cpp(9)nfp_cpp_free(9)nfp_cpp_model(9)nfp_cpp_interface(9)nfp_cpp_serial(9)nfp_cpp_area_alloc_with_name(9)nfp_cpp_area_alloc(9)nfp_cpp_area_alloc_acquire(9)nfp_cpp_area_free(9)nfp_cpp_area_acquire(9)nfp_cpp_area_acquire_nonblocking(9)nfp_cpp_area_release_free(9)nfp_cpp_area_read(9)nfp_cpp_area_write(9)nfp_cpp_area_size(9)nfp_cpp_area_name(9)nfp_cpp_area_priv(9)nfp_cpp_area_cpp(9)nfp_cpp_area_resource(9)nfp_cpp_area_phys(9)nfp_cpp_area_iomem(9)nfp_cpp_area_readl(9)nfp_cpp_area_writel(9)nfp_cpp_area_readq(9)nfp_cpp_area_writeq(9)nfp_cpp_area_fill(9)nfp_cpp_area_cache_add(9)nfp_cpp_read(9)nfp_cpp_write(9)nfp_xpb_readl(9)nfp_xpb_writel(9)nfp_xpb_writelm(9)nfp_cpp_from_operations(9)nfp_cpp_priv(9)nfp_cpp_device(9)nfp_cpp_explicit_acquire(9)nfp_cpp_explicit_set_target(9)nfp_cpp_explicit_set_data(9)nfp_cpp_explicit_set_signal(9)nfp_cpp_explicit_set_posted(9)nfp_cpp_explicit_put(9)nfp_cpp_explicit_do(9)nfp_cpp_explicit_get(9)nfp_cpp_explicit_release(9)nfp_cpp_explicit_cpp(9)nfp_cpp_explicit_priv(9)
and also the actual kernel file it lives in, in case you wanna read the source like the icon you are:
- Kernel file
./drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
ok lowkey important: the source path in the footer gets truncated to ./drivers/net/ethernet/netrono... because man pages are dramatic and love a cliffhanger. the real full path is above, don't come for me. π
and that's the page!! short, sweet, slays, releases the area, leaves. π
sign-off time π β this little beauty is dated October 2026, and the source line got cutely mangled down to ./drivers/net/ethernet/netrono... (that's the nfp_cppcore.c file up there in SEE ALSO, and you know it). stay hydrated, release your areas, and don't leak. mwah. π
β¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms