iosys_map_is_equal(9)

✨ iosys_map_is_equal 💅

okay so bestie, this is a page from the Kernel API Manual — yes the kernel, yes we're doing this, and no it's not scary, i promise 🫶

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🌸 NAME 🌸

iosys_map_is_equal — compares two iosys mapping structures for equality. that's it. that's the whole gig. you give it two maps, it tells you if they're the same. iconic behaviour honestly ✨

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🎀 SYNOPSIS 🎀

bool iosys_map_is_equal (const struct iosys_map *lhs , const struct iosys_map *rhs );

like the way it just takes two pointers and returns a bool… lowkey elegant 😌

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🦋 ARGUMENTS 🦋

• lhs — The iosys_map structure 👈 the left-hand side, the main character
• rhs — A iosys_map structure to compare with 👉 the one getting compared against

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💖 DESCRIPTION 💖

so listen. Two iosys mapping structures are equal if they both refer to the same type of memory and to the same address within that memory. both conditions, no cap, no shortcuts — same memory type, same address inside it. fr fr, if either one of those is off, they're not equal, periodt 💅

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🔥 RETURN 🔥

True is both structures are equal, or false otherwise. 🫶

ngl that "is" is straight from the original, i'm not touching it — it's part of the vibe now 😭

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🌈 SEE ALSO 🌈

• Kernel file ./include/linux/iosys-map.h overview(9)
• struct iosys_map(9)
• IOSYS_MAP_INIT_VADDR(9)
• IOSYS_MAP_INIT_VADDR_IOMEM(9)
• IOSYS_MAP_INIT_OFFSET(9)
• iosys_map_set_vaddr(9)
• iosys_map_set_vaddr_iomem(9)
• iosys_map_is_null(9)
• iosys_map_is_set(9)
• iosys_map_clear(9)
• iosys_map_memcpy_to(9)
• iosys_map_memcpy_from(9)
• iosys_map_incr(9)
• iosys_map_memset(9)
• iosys_map_rd(9)
• iosys_map_wr(9)
• iosys_map_rd_field(9)
• iosys_map_wr_field(9)

bestie that's a whole friend group of functions, go read all of them 💜

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sign-off time 🎀 this little page lives in ./include/linux, stamped October 2026, and it's iosys_map_is_equal(9) saying bye bestie — go compare some maps, you're gonna slay 🧚✨