From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> Subject: scripts/dtc: fix '%zx' warning dtc uses an incorrect format specifier for printing a uint64_t value. uint64_t may be either 'unsigned long' or 'unsigned long long' depending on the host architecture. Fix this by using %llx and casting to unsigned long long, which ensures that we always have a wide enough variable to print 64 bits of hex. HOSTCC scripts/dtc/checks.o scripts/dtc/checks.c: In function 'check_simple_bus_reg': scripts/dtc/checks.c:876:2: warning: format '%zx' expects argument of type 'size_t', but argument 4 has type 'uint64_t' [-Wformat=] snprintf(unit_addr, sizeof(unit_addr), "%zx", reg); ^ scripts/dtc/checks.c:876:2: warning: format '%zx' expects argument of type 'size_t', but argument 4 has type 'uint64_t' [-Wformat=] Link: http://lkml.kernel.org/r/20170829222034.GJ20805@xxxxxxxxxxxxxxxxxxxxx Fixes: 828d4cdd012c ("dtc: check.c fix compile error") Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Frank Rowand <frowand.list@xxxxxxxxx> Cc: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> Cc: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx> Cc: Michal Marek <mmarek@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/dtc/checks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN scripts/dtc/checks.c~scripts-dtc-fix-%zx-warning scripts/dtc/checks.c --- a/scripts/dtc/checks.c~scripts-dtc-fix-%zx-warning +++ a/scripts/dtc/checks.c @@ -873,7 +873,7 @@ static void check_simple_bus_reg(struct while (size--) reg = (reg << 32) | fdt32_to_cpu(*(cells++)); - snprintf(unit_addr, sizeof(unit_addr), "%zx", reg); + snprintf(unit_addr, sizeof(unit_addr), "%llx", (unsigned long long)reg); if (!streq(unitname, unit_addr)) FAIL(c, dti, "Node %s simple-bus unit address format error, expected \"%s\"", node->fullpath, unit_addr); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
