From ddff739d15e0307767a4bf984e50bca5b5a702dd Mon Sep 17 00:00:00 2001 From: Biwen Li Date: Mon, 14 Oct 2019 12:42:32 +0800 Subject: [PATCH] kernel: layerscape: fix compilation error This fixes a compilation error as follows: drivers/staging/fsl_qbman/qman_config.c:815:29: error: bitwise comparison always evaluates to false [-Werror=tautological-compare] if ((qman_ip_rev & 0xFF00) == QMAN_REV31) { Signed-off-by: Biwen Li (cherry picked from commit 53b73131e9b38bcae556555de53203d52321794c) --- ...-Fix-error-in-IP-revision-comparison.patch | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 target/linux/layerscape/patches-4.14/713-sdk_qbman-Fix-error-in-IP-revision-comparison.patch diff --git a/target/linux/layerscape/patches-4.14/713-sdk_qbman-Fix-error-in-IP-revision-comparison.patch b/target/linux/layerscape/patches-4.14/713-sdk_qbman-Fix-error-in-IP-revision-comparison.patch new file mode 100644 index 0000000000..b310e26855 --- /dev/null +++ b/target/linux/layerscape/patches-4.14/713-sdk_qbman-Fix-error-in-IP-revision-comparison.patch @@ -0,0 +1,28 @@ +From b43b4fdd5caa4f66fd712c77589c167c952ec659 Mon Sep 17 00:00:00 2001 +From: Roy Pledge +Date: Mon, 6 May 2019 11:18:57 -0400 +Subject: [PATCH] sdk_qbman: Fix error in IP revision comparison + +The comparison for QMAN_REV31 was incorrect as it +would always fail due to the wrong mask. + +This fixes the following error in newer GCC versions: +"error: bitwise comparison always evaluates to false + [-Werror=tautological-compare]" + +Signed-off-by: Roy Pledge +--- + drivers/staging/fsl_qbman/qman_config.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/staging/fsl_qbman/qman_config.c ++++ b/drivers/staging/fsl_qbman/qman_config.c +@@ -812,7 +812,7 @@ int qman_set_sdest(u16 channel, unsigned + + if (!qman_have_ccsr()) + return -ENODEV; +- if ((qman_ip_rev & 0xFF00) == QMAN_REV31) { ++ if ((qman_ip_rev & 0xFFFF) == QMAN_REV31) { + /* LS1043A - only one L2 cache */ + cpu_idx = 0; + }