Merge branch 'main' of https://github.com/PacktPublishing/Linux-Kerne…

…l-Programming_2E
PacktPublishing · Nov 1, 2024 · b7bb3ea · b7bb3ea
2 parents 2662dd1 + deaedf0
commit b7bb3ea
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diff --git a/ch5/min_sysinfo/min_sysinfo.c b/ch5/min_sysinfo/min_sysinfo.c
@@ -29,6 +29,11 @@ MODULE_DESCRIPTION("LKP2E book:ch5/min_sysinfo: print some minimal system info")
 MODULE_LICENSE("Dual MIT/GPL");
 MODULE_VERSION("0.2");
 
+int my_snprintf_lkp(char *buf, size_t maxsize, const char *fmt, ...);
+void show_sizeof(void);
+void llkd_sysinfo2(void);
+void llkd_sysinfo(void);
+
 /*
  * Simple wrapper over the snprintf() - a bit more security-aware.
  * Checks for and warns on overflow.

diff --git a/ch5/modstacking/core_lkm.c b/ch5/modstacking/core_lkm.c
@@ -29,6 +29,16 @@
 #define THE_ONE   0xfedface
 MODULE_LICENSE("Dual MIT/GPL");
 
+/* Declare prototypes for functions that aren't marked static,
+ * to prevent compiler warnings
+ */
+void llkd_sysinfo2(void);
+#if (BITS_PER_LONG == 32)
+u32 get_skey(int);
+#else				// 64-bit
+u64 get_skey(int);
+#endif
+
 int exp_int = 200;
 EXPORT_SYMBOL_GPL(exp_int);