diff --git a/arch/aarch64/bits/shm.h b/arch/aarch64/bits/shm.h
deleted file mode 100644
index 8d193781..00000000
--- a/arch/aarch64/bits/shm.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds {
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	time_t shm_dtime;
-	time_t shm_ctime;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
diff --git a/arch/mips64/bits/shm.h b/arch/mips64/bits/shm.h
deleted file mode 100644
index 8d193781..00000000
--- a/arch/mips64/bits/shm.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds {
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	time_t shm_dtime;
-	time_t shm_ctime;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
diff --git a/arch/riscv64/bits/shm.h b/arch/riscv64/bits/shm.h
deleted file mode 100644
index 4c3c9fb7..00000000
--- a/arch/riscv64/bits/shm.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds
-{
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	time_t shm_dtime;
-	time_t shm_ctime;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
diff --git a/arch/s390x/bits/shm.h b/arch/s390x/bits/shm.h
deleted file mode 100644
index 6652d659..00000000
--- a/arch/s390x/bits/shm.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds {
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	time_t shm_dtime;
-	time_t shm_ctime;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
-
diff --git a/arch/x86_64/bits/shm.h b/arch/x86_64/bits/shm.h
deleted file mode 100644
index 6652d659..00000000
--- a/arch/x86_64/bits/shm.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds {
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	time_t shm_dtime;
-	time_t shm_ctime;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
-