51283b810
Denys Vlasenko
2018-12-08
Subject
mdev: suppress aliasing warning
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util-linux/mdev.c+11 -1
| @@ -808,6 +808,16 @@ static void make_device(char *device_name, char *path, int operation) | |
| } /* for (;;) */ | |
| } | |
| + | static ssize_t readlink2(char *buf, size_t bufsize) |
| + | { |
| + | // Grr... gcc 8.1.1: |
| + | // "passing argument 2 to restrict-qualified parameter aliases with argument 1" |
| + | // dance around that... |
| + | char *obuf FIX_ALIASING; |
| + | obuf = buf; |
| + | return readlink(buf, obuf, bufsize); |
| + | } |
| + | |
| /* File callback for /sys/ traversal. | |
| * We act only on "/sys/.../dev" (pseudo)file | |
| */ | |
| @@ -831,7 +841,7 @@ static int FAST_FUNC fileAction(const char *fileName, | |
| /* Read ".../subsystem" symlink in the same directory where ".../dev" is */ | |
| strcpy(subsys, path); | |
| strcpy(subsys + len, "/subsystem"); | |
| - | res = readlink(subsys, subsys, sizeof(subsys)-1); |
| + | res = readlink2(subsys, sizeof(subsys)-1); |
| if (res > 0) { | |
| subsys[res] = '\0'; | |
| free(G.subsystem); | |