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1. 'test STRING' equivalent to '-n STRING' which is True if the length of string is non-zero, so 'test 0' always success. Both 'test ""' and 'test 1 -eq 0' are ok, but the later is more intuitive. 2. too many errors on Wcompound-token-split-by-macro, so disable this warning as a workaround. 3. fix two errors reported by clang 19, patch submitted to upstream. Closes: https://bugs.gentoo.org/928969 Closes: https://bugs.gentoo.org/929096 Signed-off-by: Z. Liu <zhixu.liu@gmail.com> Closes: https://github.com/gentoo/gentoo/pull/40762 Signed-off-by: Sam James <sam@gentoo.org>
57 lines
2.2 KiB
Diff
57 lines
2.2 KiB
Diff
https://github.com/rockowitz/ddcutil/pull/502
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From d6eeb92f0e537aba415b6abc28fe157626a7bef7 Mon Sep 17 00:00:00 2001
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From: "Z. Liu" <zhixu.liu@gmail.com>
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Date: Tue, 25 Feb 2025 22:24:23 +0800
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Subject: [PATCH] fix error reported by clang 19
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1. query_sysenv_i2c.c: error: variable 'busct' set but not used [-Werror,-Wunused-but-set-variable]
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2. i2c_strategy_dispatcher.c: error: expression which evaluates to zero treated as a null pointer
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Signed-off-by: Z. Liu <zhixu.liu@gmail.com>
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---
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src/app_sysenv/query_sysenv_i2c.c | 3 ---
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src/i2c/i2c_strategy_dispatcher.c | 4 ++--
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2 files changed, 2 insertions(+), 5 deletions(-)
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diff --git a/src/app_sysenv/query_sysenv_i2c.c b/src/app_sysenv/query_sysenv_i2c.c
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index 55f3424a..290b704b 100644
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--- a/src/app_sysenv/query_sysenv_i2c.c
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+++ b/src/app_sysenv/query_sysenv_i2c.c
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@@ -275,11 +275,8 @@ void test_edid_read_variants(Env_Accumulator * accum) {
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rpt_title("Testing EDID read alternatives...",depth);
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sysenv_rpt_current_time(NULL, d1);
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- int busct = 0;
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-
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for (int busno=0; busno < I2C_BUS_MAX; busno++) {
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if (i2c_device_exists(busno)) {
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- busct++;
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rpt_nl();
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rpt_vstring(d1, "Examining device /dev/i2c-%d...", busno);
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diff --git a/src/i2c/i2c_strategy_dispatcher.c b/src/i2c/i2c_strategy_dispatcher.c
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index ee435e6d..d6026526 100644
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--- a/src/i2c/i2c_strategy_dispatcher.c
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+++ b/src/i2c/i2c_strategy_dispatcher.c
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@@ -188,7 +188,7 @@ Status_Errno_DDC invoke_i2c_writer(
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hexstring_t(bytes_to_write, bytect));
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// n. prior to gcc 11, declaration cannot immediately follow label
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- I2C_IO_Strategy * strategy = I2C_IO_STRATEGY_NOT_SET;
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+ I2C_IO_Strategy * strategy = NULL;
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retry:
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strategy = i2c_get_io_strategy();
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DBGTRC_NOPREFIX(debug, TRACE_GROUP, "strategy = %s", strategy->strategy_name);
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@@ -235,7 +235,7 @@ Status_Errno_DDC invoke_i2c_reader(
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readbuf);
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// n. prior to gcc 11, declaration cannot immediately follow label
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- I2C_IO_Strategy * strategy = I2C_IO_STRATEGY_NOT_SET;
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+ I2C_IO_Strategy * strategy = NULL;
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retry:
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strategy = i2c_get_io_strategy();
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DBGTRC_NOPREFIX(debug, TRACE_GROUP, "strategy = %s", strategy->strategy_name);
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--
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2.45.2
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